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2018 Indiana EECO Program EM&V Report
Prepared for: Indiana Michigan Power
May 2019
Prepared by:
ADM Associates, Inc. 3239 Ramos Circle
Sacramento, CA95827 916.363.8383
Indiana Michigan Power Company
Table of Contents
1. Introduction ................................................................................................. 1
2. Data Collection ........................................................................................... 6
3. Method for Determining Energy Savings ................................................. 11
4. Daily Energy Savings and CVR Factors ................................................... 15
5. Aggregate Energy Savings ........................................................................ 59
6. Peak Reduction ......................................................................................... 87
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Table of Tables Table 1-1. Customer Class Composition of Circuits in EECO Program ........................................ 2 Table 1-2. PY2018 kWh Usage at Meter, by Circuit and Customer Class ..................................... 3 Table 1-3. Summary of Ex Post and Counterfactual PY2018 kWh Savings .................................. 5 Table 1-4. Summary of Ex Post PY2018 kW Peak Demand Impacts ............................................ 5 Table 2-1. PY2018 Months When VVO Was in Operation by Station .......................................... 6 Table 2-2 Number of PY2018 VVO On/Off Days by Station by Day Type During Heating
Season ..................................................................................................................................... 7 Table 2-3 Number of PY2018 VVO On/Off Days by Station by Day Type During Cooling
Season ..................................................................................................................................... 8 Table 3-1. Normal Heating and Cooling Days for South Bend, by Month ................................. 13 Table 4-1 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
East Side Substation, 4093121 Circuit.................................................................................. 16 Table 4-2 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
East Side Substation, 4093122 Circuit.................................................................................. 17 Table 4-3 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
East Side Substation, 4093123 Circuit.................................................................................. 18 Table 4-4 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
East Side Substation, 4093124 Circuit.................................................................................. 19 Table 4-5 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
East Side Substation, 4093125 Circuit.................................................................................. 20 Table 4-6 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
East Side Substation, 4093126 Circuit ................................................................................. 21 Table 4-7 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Elcona Substation, 4938121 Circuit ..................................................................................... 22 Table 4-8 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Elcona Substation, 4938122 Circuit ..................................................................................... 23 Table 4-9 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Elcona Substation, 4938123 Circuit ..................................................................................... 24 Table 4-10 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Hacienda Substation, 4933521 Circuit ................................................................................. 25 Table 4-11 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Hacienda Substation, 4933523 Circuit ................................................................................. 26 Table 4-12 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Hacienda Substation, 4933524 Circuit ................................................................................. 27 Table 4-13 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Hacienda Substation, 4933525 Circuit ................................................................................. 28 Table 4-14 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Hacienda Substation, 4933526 Circuit ................................................................................. 29 Table 4-15 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Hacienda Substation, 4933527 Circuit ................................................................................. 30 Table 4-16 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Harper Substation, 4928821 Circuit..................................................................................... 31 Table 4-17 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week:
Harper Substation, 4928822 Circuit..................................................................................... 32
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Table 4-18 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Lincoln Substation, 4051821 Circuit .................................................................................... 33
Table 4-19 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Lincoln Substation, 4051822 Circuit .................................................................................... 34
Table 4-20 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Lincoln Substation, 4051824 Circuit .................................................................................... 35
Table 4-21 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933421 Circuit ................................................................................ 36
Table 4-22 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933422 Circuit ................................................................................ 37
Table 4-23 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933423 Circuit ................................................................................ 38
Table 4-24 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933424 Circuit ................................................................................ 39
Table 4-25 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933425 Circuit ................................................................................ 40
Table 4-26 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933426 Circuit ................................................................................ 41
Table 4-27 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058021 Circuit ....................................................................................... 42
Table 4-28 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058022 Circuit ....................................................................................... 43
Table 4-29 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058023 Circuit ....................................................................................... 44
Table 4-30 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058024 Circuit ....................................................................................... 45
Table 4-31 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058025 Circuit ....................................................................................... 46
Table 4-32 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058026 Circuit ....................................................................................... 47
Table 4-33 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Bend Substation, 4050321 Circuit .............................................................................. 48
Table 4-34 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Bend Substation, 4050322 Circuit .............................................................................. 49
Table 4-35 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Bend Substation, 4050323 Circuit .............................................................................. 50
Table 4-36 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Side Substation, 4099921 Circuit ............................................................................... 51
Table 4-37 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Side Substation, 4099922 Circuit ............................................................................... 52
Table 4-38 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Side Substation, 4099923 Circuit ............................................................................... 53
Table 4-39 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Spy Run Substation, 4923321 Circuit ................................................................................... 54
Table 4-40 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Spy Run Substation, 4923322 Circuit ................................................................................... 55
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Table 4-41 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: State Street Substation, 4928721 Circuit .............................................................................. 56
Table 4-42 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: State Street Substation, 4928722 Circuit .............................................................................. 57
Table 4-43 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: State Street Substation, 4928723 Circuit .............................................................................. 58
Table 5-1 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: East Side Substation .............................................................................................................................. 59
Table 5-2 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Elcona Substation .............................................................................................................................. 60
Table 5-3 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Hacienda Substation .............................................................................................................................. 61
Table 5-4 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Harper Substation .............................................................................................................................. 63
Table 5-5 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Lincoln Substation .............................................................................................................................. 63
Table 5-6 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Northland Substation .............................................................................................................................. 64
Table 5-7 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Osolo Substation .............................................................................................................................. 66
Table 5-8 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: South Bend Substation .............................................................................................................................. 67
Table 5-9 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: South Side Substation .............................................................................................................................. 68
Table 5-10 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Spy Run Substation .............................................................................................................................. 69
Table 5-11 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: State Street Substation .............................................................................................................................. 70
Table 5-12 Summary of PY2018 kWh Savings by Substation and Circuit .................................... 70 Table 5-13 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day
of Week: East Side Substation............................................................................................... 73 Table 5-14 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day
of Week: Elcona Substation .................................................................................................. 74 Table 5-15 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day
of Week: Hacienda Substation .............................................................................................. 75 Table 5-16 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day
of Week: Harper Substation .................................................................................................. 76 Table 5-17 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day
of Week: Lincoln Substation ................................................................................................. 77 Table 5-18 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day
of Week: Northland Substation ............................................................................................. 78 Table 5-19 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day
of Week: Osolo Substation .................................................................................................... 79 Table 5-20 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day
of Week: South Bend Substation ........................................................................................... 81
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Table 5-21 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: South Side Substation ............................................................................................. 82
Table 5-22 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: Spy Run Substation ................................................................................................ 83
Table 5-23 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: State Street Substation ........................................................................................... 83
Table 5-24 Summary of Counterfactual PY2018 kWh Savings Has VVO Always Been On by Substation and Circuit .......................................................................................................... 84
Table 6-1. kW Reduction during PY2018 I&M 5CP ................................................................... 87 Table 6-2. Summary of kW Reductions during I&M 5CP Events ............................................... 88
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1. Introduction This report addresses the measuring, verifying and evaluating of energy savings and demand reductions that resulted from the implementation by Indiana Michigan Power Company (I&M) in 2018 of its Electric Energy Consumption Optimization (EECO) Program. I&M implemented this program in conjunction with Utilidata, Inc.
1.1 Description of Program
Under ANSI Standard C84.1 Electric Power Systems and Equipment, a utility system is to deliver electricity to end-users at a voltage within the range of 120 +/- 5% volts (i.e., 114 – 126). With the usual system design, customers close to a substation receive voltages closer to 126 volts and customers farther from the substation receive lower voltages. Voltage regulating equipment is applied as necessary to ensure the required minimum voltages are provided.
The EECO program is based on implementing Conservation Voltage Reduction (CVR), which is a process by which the utility systematically reduces voltages in its distribution network, resulting in a proportional reduction of load on the network. Because most devices operated by electricity (especially motors) are designed to operate most efficiently at 115 volts, any “excess” voltage is typically wasted, usually in the form of heat. Tighter voltage regulation allows end-use devices to operate more efficiently without any action on the part of consumers. Consumers receive a lower but still acceptable voltage and use less energy to accomplish the same tasks.
Table 1-1 identifies the customer class composition of the VVO circuits.
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Table 1-1. Customer Class Composition of Circuits in EECO Program
Substation Circuit ID Account Class Description
Total Commercial Industrial Residential
East Side
4093121 70 0 975 1,045
4093122 109 0 2,335 2,444
4093123 189 6 2,007 2,202
4093124 78 0 1,925 2,003
4093125 197 5 2,312 2,514
4093126 52 0 200 252
Elcona 4938121 28 50 0 78
4938122 33 15 69 117
4938123 203 50 1,802 2,055
Grabill 4935221 97 29 398 524
4935222 291 7 2,089 2,387
4935223 N/A N/A N/A 0
Hacienda
4933521 64 2 1,441 1,507
4933523 62 0 1,537 1,599
4933524 24 0 1,510 1,534
4933525 116 0 1,872 1,988
4933526 98 0 2,192 2,290
4933527 224 0 593 817
Harper 4928821 211 14 1,221 1,446
4928822 208 8 1,913 2,129
Lincoln 4051821 341 14 1423 1,778
4051822 255 2 1833 2,090
4051824 122 9 161 292
Northland
4933421 47 56 77 180
4933422 42 1 999 1,042
4933423 34 49 235 318
4933424 46 9 387 442
4933425 126 13 1,414 1,553
4933426 73 0 1,068 1,141
Osolo
4058021 142 45 272 459
4058022 120 11 1,219 1,350
4058023 262 27 1,056 1,345
4058024 297 25 989 1,311
4058025 159 6 800 965
4058026 53 32 604 689
South Bend 4050321 269 2 2,162 2,433
4050322 172 0 1,756 1,928
4050323 143 0 1,273 1,416
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Substation Circuit ID Account Class Description
Total Commercial Industrial Residential
South Side 4099921 215 9 867 1,091
4099922 233 9 1,330 1,572
4099923 1953 307 12,432 14,692
Spy Run 4923321 285 11 1,519 1,815
4923322 57 4 382 443
State Street 4928721 244 3 1,811 2,058
4928722 174 0 1,295 1,469
4928723 39 0 1,033 1,072 Total 8,257 830 64,788 73,875
Annual energy usage at the meter, by circuit and customer class is presented below in Table 1-2.
Table 1-2. PY2018 kWh Usage at Meter, by Circuit and Customer Class
Substation Circuit ID Account Class Description
Total Commercial Industrial Residential
East Side
4093121 1,785,753.20 0.00 7,412,901.83 9,198,655
4093122 9,394,758.95 0.00 17,159,981.75 26,554,741
4093123 10,287,723.56 1,371,888.98 16,675,211.35 28,334,824
4093124 6,136,908.31 0.00 16,093,144.40 22,230,053
4093125 4,646,029.98 49,504.17 17,313,933.13 22,009,467
4093126 15,904,140.73 0.00 1,647,939.01 17,552,080
Elcona 4938121 1,421,806.46 24,499,607.05 0.00 25,921,414
4938122 1,480,738.70 20,303,439.00 762,079.30 22,546,257
4938123 8,809,816.67 22,130,577.00 16,022,058.89 46,962,453
Grabill 4935221 3,827,131.05 13,780,167.46 3,805,775.80 21,413,074
4935222 12,052,347.81 719,084.00 28,048,817.45 40,820,249
4935223 N/A N/A N/A 0
Hacienda
4933521 3,271,389.64 42,836.00 13,757,511.86 17,071,738
4933523 1,965,257.33 0.00 15,338,059.23 17,303,317
4933524 850,143.08 0.00 16,780,940.68 17,631,084
4933525 9,469,018.04 0.00 18,737,795.53 28,206,814
4933526 1,545,357.60 0.00 23,485,053.11 25,030,411
4933527 24,587,199.41 0.00 7,337,498.18 31,924,698
Harper 4928821 5,678,880.34 16,778,981.00 10,148,824.02 32,606,685
4928822 17,358,801.65 766,775.00 20,072,772.12 38,198,349
Lincoln 4051821 16,442,491.47 3,994,015.00 11,709,281.65 32,145,788
4051822 15,518,356.84 28,947.69 15,118,970.58 30,666,275
4051824 17,301,822.88 1,898,561.23 1,620,993.84 20,821,378 Northland 4933421 5,788,784.09 15,726,081.08 622,168.64 22,137,034
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Substation Circuit ID Account Class Description
Total Commercial Industrial Residential
4933422 4,186,451.31 542.77 10,701,680.45 14,888,675
4933423 3,764,868.08 22,004,434.46 2,157,484.52 27,926,787
4933424 2,072,818.24 19,542,240.92 3,704,182.78 25,319,242
4933425 3,467,732.40 1,599,818.00 16,519,501.59 21,587,052
4933426 4,362,414.20 0.00 11,451,603.53 15,814,018
Osolo
4058021 14,957,646.96 7,298,413.38 2,311,322.15 24,567,382
4058022 1,216,331.00 13,941,919.38 9,616,340.41 24,774,591
4058023 15,435,746.87 4,149,168.47 10,094,136.85 29,679,052
4058024 23,177,338.80 6,246,679.00 7,141,801.55 36,565,819
4058025 3,195,791.05 4,899,078.00 7,244,862.63 15,339,732
4058026 2,105,384.55 16,369,953.31 6,212,936.70 24,688,275
South Bend 4050321 24,014,071.55 379,240.00 15,786,833.36 40,180,145
4050322 10,988,521.82 0.00 13,352,927.46 24,341,449
4050323 8,031,112.76 0.00 10,399,406.66 18,430,519
South Side 4099921 21,023,737.04 2,701,597.00 9,187,981.48 32,913,316
4099922 19,425,033.13 3,507,890.00 13,062,650.24 35,995,573
4099923 2,363,579.46 3,179,171.34 10,966,056.17 16,508,807
Spy Run 4923321 29,522,126.15 662,519.10 9,890,612.87 40,075,258
4923322 4,206,119.00 46,106,823.00 2,304,026.12 52,616,968
State Street 4928721 24,614,846.36 21,447.00 14,658,799.68 39,295,093
4928722 11,584,479.32 0.00 12,789,778.21 24,374,258
4928723 2,033,367.00 0.00 10,068,643.41 12,102,010
Total 431,274,175
274,701,400
489,295,281
1,195,270,856
Voltage is controlled for the circuits at the substations using Utilidata’s AdaptiVolt Volt/VAR Optimization (VVO) platform. AdaptiVolt uses secure digital communications to implement a closed-loop control system. Using AdaptiVolt allows I&M to dispatch voltage-based demand control within seconds. The system measures end-of-line voltage and sends the voltage information back to the controller at the substation in real time.
Using the AdaptiVolt™ system, voltages were controlled for each of the three phases being distributed to the circuits served by the substation. Thus, the voltage for Phase A was the same for all three circuits, and similarly for Phases B and C.
1.2 Impact Evaluation Findings
Table 1-3 below presents the total aggregated annual gross and net energy (kWh) savings achieved by the EECO Program during PY2018. Table 1-3 also provides an estimate of the annual net kWh savings that might have been achieved if VVO had been operated continuously during a full year.
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Table 1-3. Summary of Ex Post and Counterfactual PY2018 kWh Savings
Ex Ante Annual
Gross kWh Savings
Ex Post Annual
Gross kWh Savings
Gross Realization
Rate
Ex Post Annual
Net kWh Savings
Net-to-Gross Ratio
Counterfactual Estimated
Annual kWh Savings-100% CVR On Time
13,795,795 10,526,559 76% 10,526,559 100% 24,496,566
Table 1-4 presents the total gross and net peak demand (kW) impacts achieved by the EECO Program during PY2018.
Table 1-4. Summary of Ex Post PY2018 kW Peak Demand Impacts
Ex Ante Gross Peak kW Reduction
Ex Post Gross Peak kW Reduction
Gross Realization Rate
Ex Post Net Peak kW Reduction
Net-to-Gross Ratio
4,290.49 945.05 22% 945.05 100%
1.3 Organization of Report
This report is organized as follows:
Chapter 2: Data Collection
Chapter 3: Method for Determining Energy Savings
Chapter 4: Daily Energy Savings and CVR Factors
Chapter 5: Aggregate Energy Savings
Chapter 6: Peak Reduction
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2. Data Collection The effects of voltage optimization for the stations in the 2018 EECO program were analyzed using data on voltages and power demands.
I&M and Utilidata used an “on/off” procedure for voltage reductions during various parts of the year.1 This procedure provides data sets with measurements of voltages and energy use that include both regular voltages (measured on “off” ‘days) and reduced voltages (measured on “on” days).
Table 2-1 shows the months when VVO was in operation for the different stations during 2018.
Table 2-1. PY2018 Months When VVO Was in Operation by Station
Station PY2018 Months of Scheduled VVO Operation
East Side All Year Elcona January-June, October - December Grabill January and December Hacienda All Year Harper September - December Lincoln September - December South Bend January - March
Spy Run January - July, October - December State Street
January - May, September - December
Northland September - December Osolo August - December South Side September - December
1 For discussion of “on/off” testing, see, for example, Pacific Northwest Regional Technical Forum, Standard Protocol #1 for Automated CVR, November 2011.
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Table 2-2 and Table 2-3 show the numbers of “on” and “off” days during 2018 by circuit during the heating and cooling season, respectively.
Table 2-2 Number of PY2018 VVO On/Off Days by Station by Day Type During Heating Season
Circuit
ID
Days by VVO Status Total Days Substation Weekday Weekend Holidays
VVO On VVO Off VVO On VVO Off VVO On VVO Off
East Side
4093121 142 49 67 11 0 4 273 4093122 141 50 65 13 0 4 273 4093123 140 51 67 11 0 4 273 4093124 131 60 63 15 0 4 273 4093125 130 61 62 16 0 4 273 4093126 131 60 64 14 0 4 273
Elcona 4938121 119 72 53 25 0 4 273 4938122 119 72 53 25 0 4 273 4938123 119 72 53 25 0 4 273
Grabill 4935221 1 190 0 78 0 4 273 4935222 1 190 0 78 0 4 273 4935223 0 191 0 78 0 4 273
Hacienda
4933521 110 81 48 30 0 4 273 4933523 110 81 48 30 0 4 273 4933524 110 81 48 30 0 4 273 4933525 41 150 19 59 0 4 273 4933526 41 150 19 59 0 4 273 4933527 41 150 19 59 0 4 273
Harper 4928821 49 142 22 56 0 4 273 4928822 49 142 22 56 0 4 273
Lincoln 4051821 29 162 13 65 0 4 273 4051822 29 162 13 65 0 4 273 4051824 29 162 13 65 0 4 273
Northland
4933421 46 145 15 63 0 4 273 4933422 57 134 25 53 0 4 273 4933423 57 134 25 53 0 4 273 4933424 53 138 23 55 0 4 273 4933425 53 138 23 55 0 4 273 4933426 53 138 23 55 0 4 273
Osolo
4058021 63 128 28 50 0 4 273 4058022 63 128 28 50 0 4 273 4058023 63 128 28 50 0 4 273 4058024 49 142 23 55 0 4 273
4058025 49 142 23 55 0 4 273
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Circuit
ID
Days by VVO Status Total Days Substation Weekday Weekend Holidays
VVO On VVO Off VVO On VVO Off VVO On VVO Off
4058026 49 142 23 55 0 4 273
South Bend 4050321 30 161 15 63 0 4 273 4050322 30 161 14 64 0 4 273 4050323 31 160 15 63 0 4 273
South Side 4099921 66 125 29 49 0 4 273 4099922 66 125 29 49 0 4 273 4099923 66 125 29 49 0 4 273
Spy Run 4923321 117 74 54 24 0 4 273 4923322 114 77 52 26 0 4 273
State Street 4928721 86 105 39 39 0 4 273 4928722 86 105 39 39 0 4 273 4928723 86 105 39 39 0 4 273
Table 2-3 Number of PY2018 VVO On/Off Days by Station by Day Type During Cooling Season
Circuit
ID
Days by VVO Status Total Days Substation Weekday Weekend Holidays
VVO On VVO Off VVO On VVO Off VVO On VVO Off
East Side
4093121 37 28 16 10 0 1 92 4093122 33 32 13 13 0 1 92 4093123 32 33 14 12 0 1 92 4093124 29 36 12 14 0 1 92 4093125 33 32 11 15 0 1 92 4093126 38 27 14 12 0 1 92
Elcona 4938121 6 59 3 23 0 1 92 4938122 6 59 3 23 0 1 92 4938123 6 59 59 (33) 0 1 92
Grabill 4935221 0 65 0 26 0 1 92 4935222 0 65 0 26 0 1 92
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Circuit
ID
Days by VVO Status Total Days Substation Weekday Weekend Holidays
VVO On VVO Off VVO On VVO Off VVO On VVO Off 4935223 0 65 0 26 0 1 92
Hacienda
4933521 22 43 8 18 0 1 92 4933523 22 43 8 18 0 1 92 4933524 22 43 8 18 0 1 92 4933525 0 65 0 26 0 1 92 4933526 0 65 0 26 0 1 92 4933527 0 65 0 26 0 1 92
Harper 4928821 0 65 0 26 0 1 92 4928822 0 65 0 26 0 1 92
Lincoln 4051821 1 64 0 26 0 1 92 4051822 1 64 0 26 0 1 92 4051824 1 64 0 26 0 1 92
Northland
4933421 0 65 0 26 0 1 92 4933422 0 65 0 26 0 1 92 4933423 0 65 0 26 0 1 92 4933424 0 65 0 26 0 1 92 4933425 0 65 0 26 0 1 92 4933426 0 65 0 26 0 1 92
Osolo
4058021 6 59 2 24 0 1 92 4058022 6 59 2 24 0 1 92 4058023 6 59 2 24 0 1 92 4058024 4 61 1 25 0 1 92 4058025 4 61 1 25 0 1 92 4058026 4 61 1 25 0 1 92
South Bend 4050321 0 65 0 26 0 1 92 4050322 0 65 0 26 0 1 92 4050323 0 65 0 26 0 1 92
South Side 4099921 0 65 0 26 0 1 92 4099922 0 65 0 26 0 1 92 4099923 0 65 0 26 0 1 92
Spy Run 4923321 18 47 8 18 0 1 92 4923322 18 47 8 18 0 1 92
State Street 4928721 0 65 0 26 0 1 92 4928722 0 65 0 26 0 1 92 4928723 0 65 0 26 0 1 92
Data for the following elements were collected and stored with the AdaptiVolt™ system during the year.
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Regulated source voltages by phase,
Total feeder current by phase,
kW by phase,
kvar by phase, and
Primary voltages at or near the end of the distribution feeders by phase
During 2018, data were collected for regulated source voltages by phase and power by circuit. Voltage and power were measured at 15-minute intervals, giving 4 data-points per hour for each element. Voltages were measured at the substation level for three phases, with the voltage for a phase being the same for the three circuits. The circuit-level voltage for each time interval was calculated from the mean of the phase-level voltage.
Temperature readings were obtained from the National Oceanic and Atmospheric Administration (NOAA) and used for the analysis.
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3. Method for Determining Energy Savings This chapter discusses the method used for analysis of data to determine energy savings from voltage reduction.
3.1 Protocols for CVR Analysis
Methods for using circuit-level data on voltages and power usage to measure and verify savings from voltage reductions are set out in several existing protocols. Because much of the early work on voltage reduction was performed in the Pacific Northwest, the Northwest Regional Technical Forum (RTF) managed a process to prepare a protocol for estimating savings from automated CVR. This protocol (Automated CVR Protocol No. 1) was approved by the RTF in 2004. The RTF approved a second protocol (Simplified Voltage Optimization Protocol) in 2010.
With the RTF protocols, savings resulting from voltage reduction are estimated by multiplying a change in voltage level by a CVR factor that reflects the estimated relationship between voltage reduction and energy reduction. For application of the protocols in the Pacific Northwest, load research data were used to develop a series of lookup tables with CVR values for participating utilities. However, these CVR values depend on load and weather conditions and end-use equipment saturations (e.g., air conditioning use) that are specific to the Pacific Northwest.
An enhanced version of the RTF protocols has been developed by a CVR working group in Pennsylvania. Using data collected for utility distribution circuits in Pennsylvania, the working group developed a Conservation Voltage Reduction (CVR) Custom Measurement Protocol for Demand Reduction. (Revised version was published September 21, 2011.)
3.2 Method for Determining kWh Savings
As shown by Equation 1, the kWh savings that result from voltage reduction can be quantified as the difference between a baseline energy use (when voltage is not reduced) and actual energy use when voltage is reduced.
kWh savings = kWhBaseline – kWhActual when VVO is “on” (1)
The energy use when VVO is “on” can be measured. However, baseline energy use is essentially “counterfactual”: what would the energy use have been during the given time period were VVO “off”.
3.2.1 Determining Baseline Voltages
Baseline voltages for hours when VVO was “on” were imputed using mean values of voltages when VVO was “off”. These mean values were calculated for each circuit for cells defined by season (i.e., heating, cooling), type of day (i.e., weekday, weekend), and hour of day. For each hour that VVO was “on”, the baseline voltage was imputed to be the “off” voltage from the cell similarly defined by season x type of day x hour of day. For example, the baseline voltage for 1 PM on a weekday during the heating season when VVO was “on” was imputed to be the mean voltage calculated from voltage readings for the 1 PM hour for weekdays in the heating season when VVO was “off”.
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3.2.2 Determining Baseline Power
Power for a circuit is not completely independent from voltage changes because not all loads react in the same way to a voltage change. Various studies have shown that the energy savings that result from voltage reduction depend on the characteristics and loads of a feeder.
Some loads are characterized by constant impedance, where power consumed is proportional to voltage squared. Examples of such loads include incandescent lighting, resistive water heaters, stovetop and oven cooking loads.
Other loads are constant power, where demand is constant regardless of voltage. Examples of constant power loads include electric motors and regulated power supplies.
A relatively small percentage of loads are constant current, where demand is proportional to voltage. Examples of constant current loads include welding units, smelting, and electroplating processes.
The overall load on a feeder will be a mix of the different load types. Rules of thumb for the split between constant power and constant impedance loads are as follows2:
For summer peak loads, 60% constant power and 40% constant impedance
For winter peak loads, 40% constant power and 60% constant impedance
For industrial loads, 80% constant power and 20% constant impedance
For summer peaking residential loads, 70% constant power and 30% constant impedance
For winter peaking residential loads, 30% constant power and 70% constant impedance
For commercial loads, the split between constant power and constant impedance is generally 50%/50% or 60%/40%
Regression analysis was used to relate circuit power data to month of year, voltage and ambient temperature. The regression model used is shown in Equation (2).
Poweri = α + β1,jDummyMonth j + β2Vi + β3Ti + ei (2)
A model of this form was estimated for each hour of the day. For each period i within an hour, Poweri is the measured kW, Vi is the voltage, Ti is the ambient temperature (in degrees Celsius), DummyMonth,j are indicator (0,1) variables for whether an observation is in month j, ei is the error term, and α, β 1j, β2, and β3 are the regression coefficients being estimated.
Ambient temperature was included in the regression to account for variation in heating and/or cooling requirements across the year. Table 3-1 shows the variation across months in “normal” heating and cooling degree days for South Bend, the station chosen as most representative for the Indiana stations.
2 Willis, H. Lee, Power Distribution Planning Reference Book.
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Table 3-1. Normal Heating and Cooling Days for South Bend, by Month
Month Normal Heating
Degree Days
Normal Cooling
Degree Days January 1,290 0 February 1,089 0 March 853 0 April 501 0 May 167 0 June 0 120 July 0 247 August 0 186 September 64 16 October 400 0 November 747 0 December 1,125 0
Correlations of kW data with temperatures on a month-by-month basis showed positive correlations for six months (i.e., May through October) and negative correlations for the other six (i.e., January through April, November, December). Based on the evidence from the heating and cooling degree day data and the power-temperature correlations, two seasons were defined for the analysis. The heating season includes the months of January through April and October through December. The cooling season includes the months of May through September.
For each circuit, hourly regression models using the specification in Equation (2) were estimated. Separate models were estimated for two seasons (i.e., heating, cooling), where applicable, and the impact of day type was accounted for by the models.
The value for β2 estimated through the regression analysis shows how power on a circuit change in response to a change in voltage (controlling for month of year and weather).
3.2.3 Determining Energy Savings
The reduction in kW demand for a circuit when VVO was “on” was calculated as shown in Equation (3).
kW Reduction = Base_kW - Actual_kW (3)
The values for kW Reduction within an hour were averaged. This average kW Reduction was applied to determine kWh savings in each hour. The hourly values for Base_Volts, Base_kW, Actual_Volts, Actual_kW, and kWh savings were then averaged by type of day (weekday, weekend) and hour-of-the-day.
3.2.4 Determining CVR Factors
The results from studies of voltage reduction are often summarized in terms of a conservation voltage reduction factor (CVFf). A CVRf measures the relationship between changes in energy in
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response to changes in voltage effected under the CVR program. Mathematically, CVRf is calculated as the ratio between the percentage change in energy and the percentage change in voltage, as shown in Equation (4).
𝐶𝐶𝐶𝐶𝐶𝐶𝑓𝑓 = %∆ 𝑖𝑖𝑖𝑖 𝑒𝑒𝑖𝑖𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒%∆ 𝑖𝑖𝑖𝑖 𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑒𝑒𝑒𝑒
(4)
where %∆ 𝑖𝑖𝑖𝑖 𝑒𝑒𝑖𝑖𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒 = ΔkWh/kWhBase and %∆ 𝑖𝑖𝑖𝑖 𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑣𝑒𝑒𝑒𝑒 = ΔVolts/VoltsBase. ΔkWh is kWh savings and ΔVolts is the voltage reduction.
3.3 Method to Calculate Aggregate Annual kWh Savings
The method described in Section 3.2 provides estimates by hour of the day of the average kWh savings that result from VVO voltage reduction. Multiplying an hour-of-the-day estimate of savings by the number of hours voltage was reduced during that hour of the day during the season provides an aggregate estimate of kWh savings. Summing the hourly kWh savings across hours of the day and type of day provides kWh savings for the whole season. These savings are those that occurred on the days when VVO was “on”.
VVO was not “on” for all hours during the year. An additional calculation is therefore made to determine what kWh savings would have been had VVO been “on” for all days during the year This calculation is made by multiplying the hour-of-the-day estimates of savings by season and type of day by the total number of those hours of the day in the season / type of day category and then summing these kWh savings across hours of the day and type of day for each season.
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4. Daily Energy Savings and CVR Factors This chapter presents and discusses the results from the analysis of data for the Indiana EECO program in 2018 to determine kWh savings and CVR factors associated with voltage reduction for the various circuits and phases.
For each circuit, kWh savings and CVR factors were calculated for each hour-of-the-day for weekdays and for weekend days for both heating and cooling seasons. For each of the two voltage conditions (i.e., VVO “on” or “off”), the 24 hour-of-the-day power demand values were aggregated to give daily totals for power usage. The percentage savings from reducing voltage was calculated and divided by the percentage reduction in voltage to provide the estimate of the daily CVR factor for a day. The resulting estimates of daily MEMD-compliant kWh savings and CVR factors for the various phases of the circuits and phases of the substation are reported in Table 4-1 through Table 4-43.3 The resulting estimates of daily kWh savings and CVR factors for the various circuits / phases of the stations are reported in this section. The estimated CVR factors show a range of values, which is consistent with evidence from previous studies of the voltage reduction strategy. Results reported from previous studies show the range of CVR factors that have been estimated.
Kirshner and Giorsetto4 analyzed trials of voltage reduction at several utilities in the early 1980s. Their analysis showed that most test circuits had energy savings of between 0.5 and 1% for each 1% voltage reduction, implying CVR factors of 0.5 to 1. Their regression analysis showed that each 1% reduction in voltage resulted in energy savings of 0.76% for residential loads, of 0.99% for commercial loads, and of 0.41% for industrial loads.
More recently, a study conducted for the Northwest Energy Efficiency Alliance (NEEA) evaluated voltage reduction at several utilities in the Pacific Northwest.5 Evaluation of voltage changes at the circuit level, using temperature adjusted regressions, gave an average CVR factor of 0.69 based on a voltage change of 2.5%. The range of CVR factors was -0.11 to 1.98.
In EPRI’s Green Circuits collaborative project6, 42 distribution circuits across different utilities were modeled in detail using an open-source distribution system electrical simulation package (OpenDSS). This modeling was augmented with historical circuit-measurement data, allowing the hourly resolution simulation of circuit operation for actual load patterns for each hour in a calendar year (8760 hours). As part of the study, the effects of voltage reduction were modeled using a consistent approach to control an end-of-line
3 Daily CVR factor tables are not presented for Grabill circuits. For these circuits, voltage patterns did not appear to demonstrate typical CVR on states. For a number of other circuits, CVR factors are only presented for the heating season because cooling season voltage patterns did not appear to demonstrate typical CVR on states. 4 Kirshner, D. and Giorsetto, P., "Statistical Tests of Energy Savings Due to Voltage Reduction," IEEE Transactions
on Power Apparatus and Systems, vol. PAS-103, no. 6, pp. 1205-10, June 1984. 5 NEEA 1207, Distribution Efficiency Initiative, Northwest Energy Efficiency Alliance, 2007. 6 Electric Power Research Institute (EPRI), Green Circuit: Distribution Efficiency Case Studies, Technical Report,
2011.
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primary bus of 118 V. The results showed a median reduction in energy consumption across all circuits of 2%, with upper and lower quartiles of 1.3% and 2.8%.
In the study that was sponsored by the Northwest Energy Efficiency Alliance (NEEA), it was found that there are differences between seasons in the effectiveness of voltage reduction. The study determined that the CVR factor at the feeder level was 0.74 for the summer and 0.66 for the winter. At the customer level, the CVR factor was 0.78 for the summer and 0.51 for the winter.
As part of the EPRI Green Circuit project, extensive field testing was conducted for nine distribution circuits in the southeast United States. The analysis in this study showed that most energy savings from voltage reduction were achieved from summer-peaking residential customers, while winter heating loads showed the least energy savings. The estimated CVR factors were 0.77 for the summer and 0.33 for the winter.
Table 4-1 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: East Side Substation, 4093121 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 8,915.39 8,627.62 287.77 3.23%
1.21 Volts 125.10 121.76 3.33 2.66%
Weekend kWh 8,879.74 8,580.41 299.33 3.37%
1.22 Volts 125.09 121.62 3.47 2.77%
Cooling
Weekday kWh 9,097.95 8,702.23 395.73 4.35%
1.85 Volts 125.01 122.07 2.94 2.35%
Weekend kWh 9,376.14 9,017.70 358.44 3.82%
1.79 Volts 124.90 122.23 2.67 2.13%
Phase B
Heating
Weekday kWh 9,374.78 9,044.58 330.19 3.52%
1.28 Volts 125.14 121.70 3.44 2.75%
Weekend kWh 9,346.11 9,008.70 337.40 3.61%
1.28 Volts 125.13 121.61 3.52 2.81%
Cooling
Weekday kWh 10,242.13 9,826.99 415.15 4.05%
1.71 Volts 125.04 122.07 2.97 2.37%
Weekend kWh 10,736.78 10,309.97 426.81 3.98%
1.63 Volts 125.06 122.01 3.05 2.44%
Phase C
Heating
Weekday kWh 8,148.42 7,801.61 346.81 4.26%
1.20 Volts 125.31 120.88 4.43 3.53%
Weekend kWh 8,118.62 7,757.22 361.40 4.45%
1.21 Volts 125.37 120.76 4.61 3.68%
Cooling
Weekday kWh 8,888.61 8,429.50 459.11 5.17%
1.58 Volts 124.97 120.90 4.07 3.26%
Weekend kWh 9,491.93 9,006.34 485.59 5.12%
1.49 Volts 125.25 120.95 4.31 3.44%
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Table 4-2 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: East Side Substation, 4093122 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 24,427.77 23,404.64 1,023.14 4.19%
1.56 Volts 125.10 121.74 3.36 2.68%
Weekend kWh 24,452.47 23,397.41 1,055.05 4.31%
1.56 Volts 125.09 121.62 3.46 2.77%
Cooling
Weekday kWh 28,669.53 27,524.66 1,144.87 3.99%
1.69 Volts 124.99 122.03 2.96 2.37%
Weekend kWh 28,776.80 27,586.59 1,190.21 4.14%
1.68 Volts 124.93 121.86 3.07 2.46%
Phase B
Heating
Weekday kWh 22,923.72 22,087.63 836.09 3.65%
1.32 Volts 125.14 121.68 3.46 2.77%
Weekend kWh 22,778.06 21,929.07 848.99 3.73%
1.33 Volts 125.12 121.60 3.52 2.81%
Cooling
Weekday kWh 26,690.54 25,748.03 942.51 3.53%
1.52 Volts 125.05 122.15 2.90 2.32%
Weekend kWh 26,966.48 25,960.14 1,006.33 3.73%
1.51 Volts 125.06 121.97 3.09 2.47%
Phase C
Heating
Weekday kWh 22,971.98 21,926.24 1,045.74 4.55%
1.29 Volts 125.30 120.87 4.43 3.54%
Weekend kWh 23,095.98 22,006.81 1,089.17 4.72%
1.28 Volts 125.36 120.75 4.61 3.68%
Cooling
Weekday kWh 28,127.00 27,073.18 1,053.82 3.75%
1.11 Volts 125.08 120.87 4.20 3.36%
Weekend kWh 28,661.28 27,545.99 1,115.29 3.89%
1.10 Volts 125.25 120.80 4.45 3.55%
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Table 4-3 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: East Side Substation, 4093123 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 27,066.56 26,147.18 919.38 3.40%
1.27 Volts 125.08 121.74 3.34 2.67%
Weekend kWh 23,903.13 22,949.93 953.19 3.99%
1.44 Volts 125.07 121.61 3.46 2.77%
Cooling
Weekday kWh 33,051.90 32,375.11 676.79 2.05%
0.89 Volts 124.98 122.12 2.86 2.29%
Weekend kWh 32,371.59 31,712.50 659.10 2.04%
0.91 Volts 124.92 122.13 2.79 2.23%
Phase B
Heating
Weekday kWh 26,792.16 25,852.67 939.49 3.51%
1.27 Volts 125.11 121.67 3.45 2.75%
Weekend kWh 23,495.86 22,538.06 957.80 4.08%
1.45 Volts 125.11 121.59 3.51 2.81%
Cooling
Weekday kWh 33,389.91 32,386.03 1,003.88 3.01%
1.31 Volts 125.02 122.14 2.88 2.30%
Weekend kWh 32,231.57 31,228.67 1,002.90 3.11%
1.35 Volts 125.03 122.15 2.87 2.30%
Phase C
Heating
Weekday kWh 27,876.02 26,828.64 1,047.39 3.76%
1.07 Volts 125.28 120.86 4.42 3.52%
Weekend kWh 24,902.48 23,809.26 1,093.22 4.39%
1.19 Volts 125.35 120.74 4.61 3.68%
Cooling
Weekday kWh 33,440.75 32,328.24 1,112.51 3.33%
1.00 Volts 125.01 120.86 4.14 3.31%
Weekend kWh 33,613.83 32,450.97 1,162.86 3.46%
1.00 Volts 125.21 120.88 4.33 3.46%
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Table 4-4 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: East Side Substation, 4093124 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 19,900.22 18,833.77 1,066.45 5.36%
1.56 Volts 125.24 120.94 4.31 3.44%
Weekend kWh 19,839.35 18,774.54 1,064.81 5.37%
1.56 Volts 125.24 120.94 4.30 3.43%
Cooling
Weekday kWh 25,033.02 24,133.65 899.36 3.59%
1.06 Volts 125.24 120.99 4.25 3.39%
Weekend kWh 25,054.46 24,290.65 763.81 3.05%
1.06 Volts 125.26 121.65 3.61 2.88%
Phase B
Heating
Weekday kWh 20,715.94 19,563.55 1,152.39 5.56%
1.52 Volts 125.36 120.79 4.57 3.65%
Weekend kWh 20,640.40 19,506.82 1,133.58 5.49%
1.53 Volts 125.25 120.75 4.50 3.59%
Cooling
Weekday kWh 25,509.81 24,919.04 590.78 2.32%
0.67 Volts 125.17 120.85 4.31 3.44%
Weekend kWh 25,177.25 24,671.84 505.41 2.01%
0.68 Volts 125.08 121.40 3.69 2.95%
Phase C
Heating
Weekday kWh 20,288.48 19,091.62 1,196.87 5.90%
1.64 Volts 125.42 120.90 4.52 3.60%
Weekend kWh 19,797.62 18,588.12 1,209.50 6.11%
1.68 Volts 125.40 120.83 4.57 3.64%
Cooling
Weekday kWh 25,759.41 24,870.37 889.04 3.45%
1.04 Volts 125.18 121.04 4.14 3.31%
Weekend kWh 25,627.96 24,866.61 761.35 2.97%
1.05 Volts 125.15 121.60 3.55 2.83%
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Table 4-5 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: East Side Substation, 4093125 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 18,466.00 17,662.24 803.76 4.35%
1.27 Volts 125.24 120.94 4.31 3.44%
Weekend kWh 18,512.84 17,709.78 803.06 4.34%
1.26 Volts 125.24 120.94 4.30 3.43%
Cooling
Weekday kWh 24,087.62 23,255.24 832.38 3.46%
1.28 Volts 125.24 121.87 3.37 2.69%
Weekend kWh 24,010.04 23,137.14 872.91 3.64%
1.29 Volts 125.27 121.73 3.53 2.82%
Phase B
Heating
Weekday kWh 20,112.80 19,157.58 955.23 4.75%
1.30 Volts 125.37 120.80 4.58 3.65%
Weekend kWh 20,162.20 19,222.16 940.04 4.66%
1.30 Volts 125.26 120.75 4.50 3.60%
Cooling
Weekday kWh 25,598.00 24,830.13 767.87 3.00%
1.09 Volts 125.17 121.72 3.45 2.76%
Weekend kWh 26,092.71 25,278.67 814.04 3.12%
1.07 Volts 125.17 121.51 3.66 2.93%
Phase C
Heating
Weekday kWh 19,496.70 18,434.07 1,062.63 5.45%
1.51 Volts 125.43 120.91 4.52 3.61%
Weekend kWh 19,694.42 18,621.43 1,072.99 5.45%
1.50 Volts 125.41 120.84 4.57 3.64%
Cooling
Weekday kWh 25,433.80 24,597.59 836.21 3.29%
1.22 Volts 125.20 121.84 3.36 2.69%
Weekend kWh 25,901.66 25,035.79 865.87 3.34%
1.20 Volts 125.18 121.70 3.48 2.78%
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Table 4-6 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: East Side Substation, 4093126 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 14,436.57 13,700.80 735.77 5.10%
1.49 Volts 125.31 121.02 4.29 3.42%
Weekend kWh 12,585.51 11,850.40 735.12 5.84%
1.71 Volts 125.30 121.02 4.28 3.42%
Cooling
Weekday kWh 18,194.98 17,780.75 414.24 2.28%
0.78 Volts 125.32 121.65 3.67 2.93%
Weekend kWh 17,096.85 16,672.24 424.61 2.48%
0.83 Volts 125.33 121.57 3.76 3.00%
Phase B
Heating
Weekday kWh 15,716.25 14,751.91 964.34 6.14%
1.69 Volts 125.39 120.84 4.55 3.63%
Weekend kWh 13,951.21 12,997.49 953.72 6.84%
1.90 Volts 125.29 120.79 4.50 3.59%
Cooling
Weekday kWh 19,733.16 19,214.67 518.49 2.63%
0.88 Volts 125.21 121.49 3.72 2.97%
Weekend kWh 18,620.97 18,083.06 537.91 2.89%
0.94 Volts 125.19 121.33 3.86 3.08%
Phase C
Heating
Weekday kWh 16,901.82 15,918.91 982.90 5.82%
1.62 Volts 125.48 120.99 4.50 3.58%
Weekend kWh 15,064.13 14,065.87 998.27 6.63%
1.82 Volts 125.47 120.91 4.57 3.64%
Cooling
Weekday kWh 20,858.53 20,321.99 536.53 2.57%
0.89 Volts 125.27 121.67 3.61 2.88%
Weekend kWh 19,737.84 19,185.90 551.94 2.80%
0.94 Volts 125.24 121.53 3.71 2.96%
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Table 4-7 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Elcona Substation, 4938121 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 29,311.91 29,235.93 75.98 0.26% 0.09
Volts 125.10 121.51 3.59 2.87%
Weekend kWh 10,855.69 10,822.86 32.84 0.30% 0.09
Volts 125.26 121.06 4.19 3.35%
Cooling
Weekday kWh 32,153.77 31,738.85 414.92 1.29% 0.43
Volts 125.27 121.52 3.75 2.99%
Weekend kWh 11,973.87 11,800.99 172.88 1.44% 0.43
Volts 125.24 121.04 4.20 3.35%
Phase B
Heating
Weekday kWh 31,919.63 31,821.07 98.56 0.31% 0.09
Volts 125.40 121.12 4.28 3.41%
Weekend kWh 12,393.10 12,351.97 41.13 0.33% 0.09
Volts 125.46 120.86 4.60 3.67%
Cooling
Weekday kWh 35,722.20 35,227.49 494.71 1.38% 0.43
Volts 125.48 121.45 4.03 3.21%
Weekend kWh 13,652.91 13,450.14 202.77 1.49% 0.43
Volts 125.47 121.15 4.32 3.44%
Phase C
Heating
Weekday kWh 28,339.41 28,253.52 85.90 0.30% 0.09
Volts 125.40 121.20 4.20 3.35%
Weekend kWh 10,622.68 10,588.65 34.03 0.32% 0.09
Volts 125.43 120.99 4.44 3.54%
Cooling
Weekday kWh 31,657.07 31,240.57 416.49 1.32% 0.43
Volts 125.34 121.51 3.82 3.05%
Weekend kWh 11,840.62 11,674.91 165.71 1.40%
0.43 Volts 125.28 121.21 4.07 3.25%
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Table 4-8 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Elcona Substation, 4938122 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 21,167.35 20,754.67 412.68 1.95% 0.68
Volts 125.11 121.52 3.59 2.87%
Weekend kWh 14,991.15 14,649.99 341.17 2.28% 0.68
Volts 125.27 121.08 4.19 3.35%
Cooling
Weekday kWh 25,506.67 24,576.69 929.98 3.65% 1.21
Volts 125.29 121.53 3.76 3.00%
Weekend kWh 19,324.03 18,537.66 786.38 4.07% 1.21
Volts 125.26 121.07 4.20 3.35%
Phase B
Heating
Weekday kWh 22,919.39 22,386.72 532.67 2.32% 0.68
Volts 125.42 121.14 4.28 3.41%
Weekend kWh 16,995.78 16,571.06 424.72 2.50% 0.68
Volts 125.48 120.88 4.60 3.67%
Cooling
Weekday kWh 27,512.52 26,438.18 1,074.33 3.90% 1.22
Volts 125.51 121.48 4.03 3.21%
Weekend kWh 21,620.28 20,715.16 905.12 4.19% 1.22
Volts 125.50 121.19 4.32 3.44%
Phase C
Heating
Weekday kWh 23,149.78 22,621.55 528.23 2.28% 0.68
Volts 125.40 121.19 4.20 3.35%
Weekend kWh 17,389.87 16,970.57 419.30 2.41% 0.68
Volts 125.43 120.99 4.44 3.54%
Cooling
Weekday kWh 27,933.66 26,897.84 1,035.81 3.71% 1.22
Volts 125.33 121.51 3.83 3.05%
Weekend kWh 22,137.22 21,264.48 872.75 3.94% 1.21
Volts 125.27 121.21 4.07 3.25%
Indiana Michigan Power Company
Table 4-9 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Elcona Substation, 4938123 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 52,293.34 51,463.11 830.22 1.59% 0.55
Volts 125.10 121.51 3.59 2.87%
Weekend kWh 36,877.40 36,193.81 683.58 1.85% 0.55
Volts 125.26 121.06 4.19 3.35%
Cooling
Weekday kWh 58,537.18 57,217.71 1,319.47 2.25% 0.75
Volts 125.27 121.52 3.75 2.99%
Weekend kWh 44,562.58 43,437.56 1,125.02 2.52% 0.75
Volts 125.25 121.04 4.20 3.35%
Phase B
Heating
Weekday kWh 50,658.90 49,700.44 958.46 1.89% 0.55
Volts 125.40 121.12 4.28 3.41%
Weekend kWh 34,607.14 33,903.24 703.90 2.03% 0.55
Volts 125.46 120.85 4.60 3.67%
Cooling
Weekday kWh 56,498.04 55,131.20 1,366.84 2.42% 0.75
Volts 125.48 121.45 4.03 3.21%
Weekend kWh 41,153.72 40,085.35 1,068.37 2.60% 0.75
Volts 125.48 121.16 4.32 3.44%
Phase C
Heating
Weekday kWh 52,135.43 51,167.12 968.30 1.86% 0.55
Volts 125.39 121.19 4.20 3.35%
Weekend kWh 37,427.97 36,693.21 734.76 1.96% 0.55
Volts 125.42 120.98 4.44 3.54%
Cooling
Weekday kWh 59,062.23 57,705.10 1,357.13 2.30% 0.75
Volts 125.33 121.50 3.82 3.05%
Weekend kWh 45,559.76 44,445.47 1,114.29 2.45% 0.75
Volts 125.27 121.20 4.07 3.25%
Indiana Michigan Power Company
Table 4-10 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Hacienda Substation, 4933521 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 1,862.50 1,796.31 66.19 3.55% 0.91
Volts 125.17 120.28 4.89 3.91%
Weekend kWh 1,866.17 1,799.64 66.53 3.57% 0.91
Volts 125.13 120.22 4.91 3.92%
Cooling
Weekday kWh 2,380.38 2,333.23 47.15 1.98% 0.71
Volts 124.17 120.68 3.49 2.81%
Weekend kWh 2,543.64 2,485.32 58.33 2.29% 0.71
Volts 124.60 120.56 4.04 3.24%
Phase B
Heating
Weekday kWh 2,048.85 1,967.61 81.24 3.97% 0.91
Volts 125.32 119.86 5.46 4.36%
Weekend kWh 2,089.32 2,006.69 82.63 3.95% 0.91
Volts 125.29 119.85 5.45 4.35%
Cooling
Weekday kWh 2,516.27 2,443.93 72.34 2.87% 0.71
Volts 125.31 120.25 5.06 4.04%
Weekend kWh 2,701.04 2,621.65 79.39 2.94% 0.71
Volts 125.27 120.10 5.17 4.13%
Phase C
Heating
Weekday kWh 1,245.40 1,194.92 50.48 4.05% 0.91
Volts 125.10 119.52 5.58 4.46%
Weekend kWh 1,255.54 1,204.59 50.95 4.06% 0.91
Volts 125.08 119.49 5.59 4.47%
Cooling
Weekday kWh 1,563.83 1,515.12 48.71 3.11% 0.71
Volts 125.20 119.72 5.48 4.38%
Weekend kWh 1,670.62 1,618.34 52.28 3.13% 0.71
Volts 125.17 119.66 5.51 4.40%
Indiana Michigan Power Company
Table 4-11 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Hacienda Substation, 4933523 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 2,405.59 1,985.18 420.41 17.48% 4.47
Volts 125.15 120.26 4.89 3.91%
Weekend kWh 2,527.97 2,084.88 443.09 17.53% 4.47
Volts 125.11 120.20 4.91 3.92%
Cooling
Weekday kWh 2,338.34 2,296.03 42.31 1.81% 0.64
Volts 124.15 120.67 3.49 2.81%
Weekend kWh 2,524.77 2,471.89 52.88 2.09% 0.65
Volts 124.58 120.55 4.04 3.24%
Phase B
Heating
Weekday kWh 1,963.06 1,580.06 383.01 19.51% 4.48
Volts 125.31 119.85 5.46 4.36%
Weekend kWh 2,073.43 1,670.10 403.33 19.45% 4.47
Volts 125.27 119.83 5.45 4.35%
Cooling
Weekday kWh 1,894.83 1,845.08 49.75 2.63% 0.65
Volts 125.29 120.23 5.06 4.04%
Weekend kWh 2,028.92 1,974.44 54.48 2.69% 0.65
Volts 125.25 120.08 5.17 4.13%
Phase C
Heating
Weekday kWh 1,915.91 1,533.82 382.09 19.94% 4.47
Volts 125.09 119.50 5.58 4.46%
Weekend kWh 1,963.28 1,571.42 391.86 19.96% 4.47
Volts 125.06 119.47 5.59 4.47%
Cooling
Weekday kWh 2,021.64 1,964.13 57.51 2.84% 0.65
Volts 125.18 119.70 5.48 4.38%
Weekend kWh 2,119.57 2,058.98 60.59 2.86% 0.65
Volts 125.15 119.64 5.51 4.40%
Indiana Michigan Power Company
Table 4-12 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Hacienda Substation, 4933524 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 1,683.92 1,628.58 55.34 3.29% 0.84
Volts 125.16 120.27 4.89 3.91%
Weekend kWh 1,687.63 1,632.03 55.60 3.29% 0.84
Volts 125.12 120.21 4.91 3.92%
Cooling
Weekday kWh 2,127.86 2,093.75 34.10 1.60% 0.57
Volts 124.18 120.69 3.49 2.81%
Weekend kWh 2,304.12 2,261.38 42.74 1.86% 0.57
Volts 124.60 120.57 4.04 3.24%
Phase B
Heating
Weekday kWh 1,610.27 1,551.20 59.07 3.67% 0.84
Volts 125.31 119.84 5.46 4.36%
Weekend kWh 1,613.90 1,554.89 59.01 3.66% 0.84
Volts 125.27 119.83 5.45 4.35%
Cooling
Weekday kWh 2,157.78 2,107.60 50.19 2.33% 0.58
Volts 125.30 120.24 5.06 4.04%
Weekend kWh 2,297.79 2,243.12 54.67 2.38% 0.58
Volts 125.26 120.08 5.18 4.13%
Phase C
Heating
Weekday kWh 1,431.49 1,377.80 53.69 3.75% 0.84
Volts 125.10 119.52 5.59 4.46%
Weekend kWh 1,414.32 1,361.26 53.06 3.75% 0.84
Volts 125.08 119.49 5.59 4.47%
Cooling
Weekday kWh 1,950.70 1,901.54 49.17 2.52% 0.58
Volts 125.20 119.72 5.48 4.38%
Weekend kWh 2,093.07 2,040.08 52.99 2.53% 0.58
Volts 125.17 119.66 5.51 4.40%
Indiana Michigan Power Company
Table 4-13 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Hacienda Substation, 4933525 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 27,060.42 26,568.60 491.82 1.82%
1.04 Volts 123.84 121.67 2.16 1.75%
Weekend kWh 27,093.14 26,573.26 519.88 1.92%
1.04 Volts 123.82 121.54 2.29 1.85%
Phase B Heating
Weekday kWh 26,399.00 25,670.26 728.74 2.76%
1.04 Volts 124.40 121.11 3.29 2.64%
Weekend kWh 26,602.96 25,861.19 741.77 2.79%
1.04 Volts 124.36 121.04 3.32 2.67%
Phase C Heating
Weekday kWh 26,578.46 25,761.18 817.28 3.07%
1.05 Volts 124.69 121.03 3.66 2.94%
Weekend kWh 26,650.14 25,811.92 838.22 3.15%
1.05 Volts 124.65 120.90 3.75 3.01%
Indiana Michigan Power Company
Table 4-14 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Hacienda Substation, 4933526 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 22,794.12 22,428.20 365.92 1.61%
0.92 Volts 123.85 121.69 2.17 1.75%
Weekend kWh 22,306.08 21,926.78 379.30 1.70%
0.92 Volts 123.84 121.54 2.29 1.85%
Phase B Heating
Weekday kWh 23,904.24 23,321.40 582.84 2.44%
0.92 Volts 124.45 121.16 3.29 2.64%
Weekend kWh 23,960.38 23,370.24 590.14 2.46%
0.92 Volts 124.41 121.09 3.32 2.67%
Phase C Heating
Weekday kWh 21,482.30 20,899.54 582.76 2.71%
0.92 Volts 124.67 121.01 3.66 2.94%
Weekend kWh 21,494.97 20,898.04 596.93 2.78%
0.92 Volts 124.62 120.88 3.75 3.01%
Indiana Michigan Power Company
Table 4-15 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Hacienda Substation, 4933527 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 28,460.06 28,029.58 430.48 1.51%
0.87 Volts 123.83 121.67 2.16 1.75%
Weekend kWh 27,253.07 26,817.36 435.71 1.60%
0.87 Volts 123.82 121.53 2.29 1.85%
Phase B Heating
Weekday kWh 33,195.51 32,431.56 763.95 2.30%
0.87 Volts 124.44 121.15 3.29 2.65%
Weekend kWh 32,047.54 31,302.98 744.56 2.32%
0.87 Volts 124.40 121.08 3.32 2.67%
Phase C Heating
Weekday kWh 24,745.11 24,111.29 633.82 2.56%
0.87 Volts 124.72 121.06 3.66 2.94%
Weekend kWh 23,943.71 23,316.08 627.64 2.62%
0.87 Volts 124.68 120.93 3.75 3.01%
Indiana Michigan Power Company
Table 4-16 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Harper Substation, 4928821 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 31,675.26 31,075.77 599.50 1.89%
0.76 Volts 124.36 121.28 3.08 2.47%
Weekend kWh 23,454.78 22,970.92 483.86 2.06%
0.76 Volts 124.35 121.00 3.35 2.70%
Phase B Heating
Weekday kWh 29,033.69 28,418.94 614.75 2.12%
0.77 Volts 124.52 121.08 3.44 2.76%
Weekend kWh 20,397.53 19,946.73 450.80 2.21%
0.77 Volts 124.51 120.91 3.59 2.89%
Phase C Heating
Weekday kWh 32,107.70 31,413.38 694.32 2.16%
0.77 Volts 124.42 120.90 3.52 2.83%
Weekend kWh 24,015.43 23,484.33 531.10 2.21%
0.76 Volts 124.38 120.79 3.60 2.89%
Indiana Michigan Power Company
Table 4-17 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Harper Substation, 4928822 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 29,813.74 29,250.63 563.11 1.89%
0.76 Volts 124.34 121.27 3.08 2.48%
Weekend kWh 25,047.19 24,531.32 515.88 2.06%
0.76 Volts 124.33 120.98 3.36 2.70%
Phase B Heating
Weekday kWh 41,551.22 40,674.12 877.10 2.11%
0.76 Volts 124.49 121.05 3.44 2.76%
Weekend kWh 36,943.12 36,128.47 814.65 2.21%
0.76 Volts 124.48 120.88 3.59 2.89%
Phase C Heating
Weekday kWh 35,272.91 34,512.04 760.87 2.16%
0.76 Volts 124.41 120.89 3.52 2.83%
Weekend kWh 31,274.20 30,584.41 689.79 2.21%
0.76 Volts 124.37 120.77 3.59 2.89%
Indiana Michigan Power Company
Table 4-18 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Lincoln Substation, 4051821 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 38,191.16 37,629.18 561.98 1.47% 0.95
Volts 124.21 122.28 1.93 1.55%
Weekend kWh 27,068.26 26,656.46 411.80 1.52% 0.95
Volts 124.23 122.24 1.99 1.61%
Phase B Heating
Weekday kWh 37,500.12 36,923.21 576.90 1.54% 0.95
Volts 124.46 122.44 2.02 1.62%
Weekend kWh 26,541.45 26,126.90 414.55 1.56% 0.95
Volts 124.59 122.54 2.05 1.64%
Phase C Heating
Weekday kWh 36,171.53 35,574.39 597.14 1.65% 0.95
Volts 124.71 122.54 2.16 1.74%
Weekend kWh 26,193.52 25,769.55 423.98 1.62% 0.95
Volts 124.76 122.64 2.12 1.70%
Indiana Michigan Power Company
Table 4-19 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Lincoln Substation, 4051822 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 29,815.77 29,334.30 481.47 1.61% 1.04
Volts 124.21 122.28 1.93 1.55%
Weekend kWh 26,891.49 26,442.06 449.43 1.67% 1.04
Volts 124.23 122.23 2.00 1.61%
Phase B Heating
Weekday kWh 28,976.81 28,487.97 488.85 1.69% 1.04
Volts 124.46 122.44 2.02 1.62%
Weekend kWh 26,960.54 26,499.06 461.48 1.71% 1.04
Volts 124.58 122.54 2.05 1.64%
Phase C Heating
Weekday kWh 29,108.16 28,580.88 527.28 1.81% 1.04
Volts 124.71 122.54 2.16 1.74%
Weekend kWh 26,879.24 26,401.86 477.38 1.78% 1.04
Volts 124.76 122.63 2.12 1.70%
Indiana Michigan Power Company
Table 4-20 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Lincoln Substation, 4051824 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 28,093.17 27,668.51 424.66 1.51% 0.97
Volts 124.21 122.28 1.93 1.55%
Weekend kWh 21,995.33 21,651.36 343.96 1.56% 0.97
Volts 124.23 122.23 2.00 1.61%
Phase B Heating
Weekday kWh 28,236.72 27,790.71 446.01 1.58% 0.98
Volts 124.46 122.44 2.02 1.62%
Weekend kWh 22,319.57 21,961.52 358.05 1.60% 0.98
Volts 124.59 122.54 2.05 1.64%
Phase C Heating
Weekday kWh 28,103.33 27,626.68 476.65 1.70% 0.98
Volts 124.71 122.54 2.16 1.74%
Weekend kWh 22,416.64 22,044.05 372.60 1.66% 0.98
Volts 124.76 122.64 2.12 1.70%
Indiana Michigan Power Company
Table 4-21 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933421 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 31,052.27 29,955.04 1,097.23 3.53%
1.37 Volts 124.48 121.26 3.22 2.59%
Weekend kWh 12,641.06 11,336.51 1,304.55 10.32%
3.34 Volts 124.05 120.22 3.83 3.09%
Phase B Heating
Weekday kWh 30,569.98 30,115.55 454.43 1.49%
0.59 Volts 124.95 121.82 3.13 2.50%
Weekend kWh 11,144.42 10,583.88 560.54 5.03%
1.63 Volts 124.96 121.10 3.86 3.09%
Phase C Heating
Weekday kWh 28,421.84 28,175.28 246.55 0.87%
0.35 Volts 124.87 121.74 3.13 2.51%
Weekend kWh 9,252.94 8,949.32 303.62 3.28%
1.06 Volts 124.85 121.00 3.85 3.09%
Indiana Michigan Power Company
Table 4-22 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933422 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 14,444.25 13,418.87 1,025.38 7.10%
2.94 Volts 124.52 121.51 3.01 2.42%
Weekend kWh 14,564.17 13,361.16 1,203.00 8.26%
2.90 Volts 123.94 120.41 3.53 2.85%
Phase B Heating
Weekday kWh 12,250.59 11,830.06 420.52 3.43%
1.48 Volts 125.01 122.11 2.89 2.31%
Weekend kWh 12,383.87 11,874.33 509.54 4.11%
1.47 Volts 124.83 121.32 3.51 2.81%
Phase C Heating
Weekday kWh 11,776.06 11,543.97 232.08 1.97%
0.84 Volts 124.88 121.94 2.95 2.36%
Weekend kWh 12,038.54 11,753.73 284.82 2.37%
0.82 Volts 124.82 121.21 3.61 2.90%
Indiana Michigan Power Company
Table 4-23 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933423 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 26,825.80 25,770.21 1,055.59 3.93%
1.58 Volts 124.46 121.36 3.10 2.49%
Weekend kWh 11,965.10 10,761.52 1,203.58 10.06%
3.53 Volts 123.93 120.40 3.53 2.85%
Phase B Heating
Weekday kWh 26,031.39 25,589.54 441.85 1.70%
0.70 Volts 124.97 121.93 3.04 2.43%
Weekend kWh 11,121.89 10,612.28 509.61 4.58%
1.63 Volts 124.80 121.30 3.51 2.81%
Phase C Heating
Weekday kWh 25,832.67 25,588.97 243.70 0.94%
0.38 Volts 124.85 121.76 3.09 2.48%
Weekend kWh 11,553.29 11,268.47 284.83 2.47%
0.85 Volts 124.79 121.18 3.61 2.90%
Indiana Michigan Power Company
Table 4-24 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933424 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 28,711.63 27,544.26 1,167.37 4.07%
1.48 Volts 125.07 121.65 3.43 2.74%
Weekend kWh 18,417.10 17,436.29 980.81 5.33%
2.29 Volts 123.63 120.76 2.88 2.33%
Phase B Heating
Weekday kWh 26,977.09 26,438.67 538.42 2.00%
0.67 Volts 125.14 121.44 3.70 2.96%
Weekend kWh 16,373.41 15,941.56 431.85 2.64%
1.10 Volts 123.71 120.74 2.97 2.40%
Phase C Heating
Weekday kWh 29,923.38 29,645.89 277.49 0.93%
0.33 Volts 125.12 121.59 3.52 2.81%
Weekend kWh 19,691.18 19,473.57 217.61 1.11%
0.50 Volts 123.71 120.95 2.76 2.23%
Indiana Michigan Power Company
Table 4-25 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933425 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 20,847.12 19,679.21 1,167.92 5.60%
2.04 Volts 125.07 121.64 3.43 2.74%
Weekend kWh 19,335.32 18,354.48 980.84 5.07%
2.18 Volts 123.62 120.75 2.88 2.33%
Phase B Heating
Weekday kWh 18,257.08 17,718.67 538.41 2.95%
1.00 Volts 125.14 121.44 3.70 2.96%
Weekend kWh 16,515.66 16,083.78 431.88 2.61%
1.09 Volts 123.71 120.74 2.97 2.40%
Phase C Heating
Weekday kWh 22,182.34 21,904.91 277.42 1.25%
0.44 Volts 125.10 121.58 3.52 2.81%
Weekend kWh 21,452.15 21,235.14 217.00 1.01%
0.45 Volts 123.70 120.94 2.75 2.23%
Indiana Michigan Power Company
Table 4-26 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Northland Substation, 4933426 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 16,620.25 15,454.11 1,166.15 7.02%
2.56 Volts 125.07 121.65 3.42 2.74%
Weekend kWh 16,048.46 15,067.57 980.89 6.11%
2.63 Volts 123.64 120.76 2.88 2.33%
Phase B Heating
Weekday kWh 14,591.06 14,052.82 538.24 3.69%
1.25 Volts 125.15 121.45 3.70 2.96%
Weekend kWh 14,145.57 13,713.63 431.94 3.05%
1.27 Volts 123.72 120.75 2.97 2.40%
Phase C Heating
Weekday kWh 13,235.34 12,957.85 277.49 2.10%
0.74 Volts 125.11 121.59 3.52 2.81%
Weekend kWh 12,794.53 12,577.42 217.11 1.70%
0.76 Volts 123.70 120.95 2.75 2.23%
Indiana Michigan Power Company
Table 4-27 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058021 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 34,181.68 33,111.91 1,069.77 3.13% 1.08
Volts 125.13 121.51 3.63 2.90%
Weekend kWh 24,509.17 23,562.54 946.63 3.86% 1.08
Volts 125.36 120.88 4.47 3.57%
Cooling
Weekday kWh 32,165.97 31,353.63 812.34 2.53% 0.86
Volts 125.37 121.70 3.67 2.93%
Weekend kWh 22,430.09 21,806.57 623.52 2.78% 0.86
Volts 125.40 121.36 4.04 3.22%
Phase B
Heating
Weekday kWh 35,098.93 33,904.39 1,194.54 3.40% 1.08
Volts 125.22 121.28 3.94 3.15%
Weekend kWh 24,827.65 23,826.14 1,001.50 4.03% 1.08
Volts 125.39 120.72 4.67 3.73%
Cooling
Weekday kWh 32,470.45 31,584.64 885.81 2.73% 0.86
Volts 125.39 121.43 3.96 3.16%
Weekend kWh 21,949.94 21,313.12 636.82 2.90% 0.86
Volts 125.32 121.10 4.22 3.36%
Phase C
Heating
Weekday kWh 30,953.86 29,793.82 1,160.04 3.75% 1.08
Volts 125.39 121.05 4.34 3.46%
Weekend kWh 22,274.50 21,377.62 896.88 4.03% 1.08
Volts 125.41 120.75 4.66 3.72%
Cooling
Weekday kWh 28,840.63 27,944.48 896.15 3.11% 0.86
Volts 125.46 120.94 4.51 3.60%
Weekend kWh 19,365.64 18,760.66 604.99 3.12% 0.86
Volts 125.39 120.85 4.54 3.62%
Indiana Michigan Power Company
Table 4-28 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058022 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 23,804.30 23,352.05 452.24 1.90% 0.66
Volts 125.15 121.54 3.61 2.89%
Weekend kWh 14,252.76 13,917.57 335.19 2.35% 0.66
Volts 125.39 120.92 4.47 3.57%
Cooling
Weekday kWh 29,268.51 28,633.38 635.13 2.17% 0.73
Volts 125.38 121.67 3.71 2.96%
Weekend kWh 21,732.64 21,219.74 512.90 2.36% 0.73
Volts 125.43 121.40 4.04 3.22%
Phase B
Heating
Weekday kWh 23,106.02 22,626.68 479.34 2.07% 0.66
Volts 125.22 121.27 3.95 3.15%
Weekend kWh 14,190.88 13,842.19 348.69 2.46% 0.66
Volts 125.39 120.71 4.67 3.73%
Cooling
Weekday kWh 28,107.07 27,455.81 651.26 2.32% 0.73
Volts 125.38 121.42 3.96 3.16%
Weekend kWh 20,404.09 19,901.46 502.63 2.46% 0.73
Volts 125.31 121.10 4.21 3.36%
Phase C
Heating
Weekday kWh 25,018.46 24,447.48 570.98 2.28% 0.66
Volts 125.39 121.05 4.34 3.46%
Weekend kWh 17,013.68 16,596.58 417.10 2.45% 0.66
Volts 125.41 120.75 4.66 3.72%
Cooling
Weekday kWh 31,750.82 30,913.23 837.59 2.64% 0.73
Volts 125.45 120.94 4.51 3.60%
Weekend kWh 24,773.12 24,116.11 657.01 2.65% 0.73
Volts 125.39 120.85 4.54 3.62%
Indiana Michigan Power Company
Table 4-29 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058023 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 34,146.06 33,639.56 506.50 1.48% 0.51
Volts 125.15 121.54 3.61 2.89%
Weekend kWh 17,273.78 16,957.81 315.97 1.83% 0.51
Volts 125.38 120.92 4.46 3.55%
Cooling
Weekday kWh 39,658.36 38,836.49 821.87 2.07% 0.70
Volts 125.38 121.67 3.71 2.96%
Weekend kWh 29,788.66 29,116.16 672.50 2.26% 0.70
Volts 125.43 121.39 4.04 3.22%
Phase B
Heating
Weekday kWh 34,429.15 33,872.08 557.07 1.62% 0.51
Volts 125.23 121.28 3.94 3.15%
Weekend kWh 17,987.26 17,643.79 343.47 1.91% 0.51
Volts 125.38 120.73 4.65 3.71%
Cooling
Weekday kWh 42,068.12 41,135.57 932.55 2.22% 0.70
Volts 125.39 121.42 3.97 3.16%
Weekend kWh 31,703.28 30,956.30 746.98 2.36% 0.70
Volts 125.32 121.11 4.22 3.37%
Phase C
Heating
Weekday kWh 29,901.58 29,368.92 532.66 1.78% 0.51
Volts 125.43 121.09 4.34 3.46%
Weekend kWh 16,869.44 16,547.87 321.57 1.91% 0.51
Volts 125.43 120.79 4.64 3.70%
Cooling
Weekday kWh 36,646.23 35,718.08 928.15 2.53% 0.70
Volts 125.48 120.95 4.53 3.61%
Weekend kWh 28,066.22 27,354.42 711.80 2.54% 0.70
Volts 125.43 120.89 4.54 3.62%
Indiana Michigan Power Company
Table 4-30 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058024 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 31,892.24 31,219.14 673.09 2.11% 0.63
Volts 125.32 121.09 4.22 3.37%
Weekend kWh 26,673.95 26,042.13 631.82 2.37% 0.63
Volts 125.28 120.54 4.74 3.78%
Cooling
Weekday kWh 34,995.66 34,118.65 877.01 2.51% 0.65
Volts 125.35 120.51 4.84 3.86%
Weekend kWh 31,497.12 30,782.35 714.77 2.27% 0.65
Volts 125.24 120.86 4.39 3.50%
Phase B
Heating
Weekday kWh 28,608.96 28,025.65 583.31 2.04% 0.63
Volts 125.32 121.24 4.08 3.25%
Weekend kWh 22,477.13 21,942.60 534.54 2.38% 0.63
Volts 125.43 120.67 4.76 3.79%
Cooling
Weekday kWh 33,611.89 32,760.86 851.03 2.53% 0.65
Volts 125.44 120.55 4.89 3.90%
Weekend kWh 29,306.64 28,647.11 659.53 2.25% 0.65
Volts 125.36 121.01 4.35 3.47%
Phase C
Heating
Weekday kWh 28,164.58 27,697.39 467.19 1.66% 0.62
Volts 124.96 121.64 3.32 2.65%
Weekend kWh 21,897.26 21,436.77 460.50 2.10% 0.63
Volts 125.39 121.18 4.21 3.35%
Cooling
Weekday kWh 31,717.01 31,035.25 681.77 2.15% 0.65
Volts 125.41 121.25 4.15 3.31%
Weekend kWh 29,066.64 28,431.38 635.26 2.19% 0.65
Volts 125.34 121.11 4.22 3.37%
Indiana Michigan Power Company
Table 4-31 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058025 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 11,020.72 10,721.76 298.96 2.71% 0.81
Volts 125.30 121.08 4.22 3.37%
Weekend kWh 8,709.22 8,444.02 265.20 3.05% 0.81
Volts 125.27 120.53 4.73 3.78%
Cooling
Weekday kWh 16,035.74 15,442.61 593.13 3.70% 0.96
Volts 125.34 120.50 4.84 3.86%
Weekend kWh 14,938.12 14,437.36 500.76 3.35% 0.96
Volts 125.24 120.85 4.39 3.50%
Phase B
Heating
Weekday kWh 13,170.53 12,824.72 345.81 2.63% 0.81
Volts 125.30 121.22 4.08 3.26%
Weekend kWh 10,160.54 9,849.98 310.56 3.06% 0.81
Volts 125.39 120.64 4.75 3.79%
Cooling
Weekday kWh 17,186.96 16,544.86 642.10 3.74% 0.96
Volts 125.41 120.52 4.89 3.90%
Weekend kWh 15,553.40 15,036.59 516.81 3.32% 0.96
Volts 125.32 120.97 4.35 3.47%
Phase C
Heating
Weekday kWh 13,076.46 12,797.05 279.41 2.14% 0.80
Volts 124.93 121.61 3.32 2.66%
Weekend kWh 10,354.68 10,074.73 279.95 2.70% 0.81
Volts 125.33 121.13 4.20 3.35%
Cooling
Weekday kWh 19,083.85 18,480.27 603.59 3.16% 0.96
Volts 125.36 121.22 4.14 3.30%
Weekend kWh 17,739.23 17,166.43 572.80 3.23% 0.96
Volts 125.29 121.06 4.22 3.37%
Indiana Michigan Power Company
Table 4-32 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Osolo Substation, 4058026 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 27,006.61 26,773.89 232.72 0.86% 0.26
Volts 125.29 121.07 4.22 3.37%
Weekend kWh 16,843.21 16,680.31 162.90 0.97% 0.26
Volts 125.26 120.52 4.73 3.78%
Cooling
Weekday kWh 32,598.84 32,743.71 -144.87 -0.44% (0.11)
Volts 125.33 120.49 4.84 3.86%
Weekend kWh 21,630.70 21,717.34 -86.64 -0.40% (0.11)
Volts 125.21 120.84 4.37 3.49%
Phase B
Heating
Weekday kWh 26,937.84 26,713.35 224.49 0.83% 0.26
Volts 125.32 121.24 4.08 3.26%
Weekend kWh 15,001.30 14,855.51 145.79 0.97% 0.26
Volts 125.42 120.67 4.76 3.79%
Cooling
Weekday kWh 31,257.25 31,397.62 -140.36 -0.45% (0.12)
Volts 125.44 120.55 4.89 3.90%
Weekend kWh 18,874.32 18,949.60 -75.28 -0.40% (0.12)
Volts 125.34 120.99 4.35 3.47%
Phase C
Heating
Weekday kWh 30,480.96 30,274.45 206.52 0.68% 0.26
Volts 124.95 121.64 3.32 2.65%
Weekend kWh 17,739.85 17,587.54 152.31 0.86% 0.26
Volts 125.38 121.18 4.20 3.35%
Cooling
Weekday kWh 32,554.21 32,678.22 -124.01 -0.38% (0.12)
Volts 125.40 121.24 4.15 3.31%
Weekend kWh 21,244.53 21,326.80 -82.28 -0.39% (0.11)
Volts 125.31 121.09 4.22 3.37%
Indiana Michigan Power Company
Table 4-33 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Bend Substation, 4050321 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 39,678.69 39,321.87 356.82 0.90%
0.23 Volts 125.61 120.74 4.88 3.88%
Weekend kWh 39,041.98 38,671.00 370.98 0.95%
0.24 Volts 125.62 120.55 5.07 4.04%
Phase B Heating
Weekday kWh 38,739.84 38,352.11 387.73 1.00%
0.25 Volts 125.30 120.27 5.02 4.01%
Weekend kWh 37,368.66 36,975.33 393.34 1.05%
0.26 Volts 125.20 120.10 5.10 4.07%
Phase C Heating
Weekday kWh 36,821.15 36,072.19 748.96 2.03%
0.50 Volts 125.48 120.36 5.12 4.08%
Weekend kWh 35,115.54 34,338.15 777.39 2.21%
0.52 Volts 125.48 120.17 5.31 4.23%
Indiana Michigan Power Company
Table 4-34 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Bend Substation, 4050322 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 24,547.79 24,192.84 354.95 1.45%
0.37 Volts 125.61 120.76 4.85 3.86%
Weekend kWh 24,037.61 23,666.59 371.02 1.54%
0.38 Volts 125.60 120.53 5.07 4.04%
Phase B Heating
Weekday kWh 29,314.41 28,930.14 384.27 1.31%
0.33 Volts 125.29 120.31 4.98 3.97%
Weekend kWh 29,557.87 29,157.22 400.65 1.36%
0.33 Volts 125.28 120.09 5.19 4.14%
Phase C Heating
Weekday kWh 18,437.89 17,699.90 737.98 4.00%
1.00 Volts 125.45 120.41 5.04 4.02%
Weekend kWh 18,022.20 17,247.42 774.77 4.30%
1.02 Volts 125.46 120.17 5.29 4.22%
Indiana Michigan Power Company
Table 4-35 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Bend Substation, 4050323 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 17,787.68 17,433.48 354.19 1.99%
0.52 Volts 125.60 120.76 4.84 3.85%
Weekend kWh 17,864.23 17,492.66 371.57 2.08%
0.51 Volts 125.59 120.51 5.08 4.04%
Phase B Heating
Weekday kWh 20,550.52 20,163.40 387.12 1.88%
0.47 Volts 125.30 120.28 5.02 4.00%
Weekend kWh 20,152.07 19,750.05 402.02 1.99%
0.48 Volts 125.26 120.05 5.21 4.16%
Phase C Heating
Weekday kWh 16,190.10 15,454.24 735.86 4.55%
1.13 Volts 125.44 120.42 5.03 4.01%
Weekend kWh 16,243.98 15,467.92 776.06 4.78%
1.13 Volts 125.46 120.16 5.30 4.22%
Indiana Michigan Power Company
Table 4-36 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Side Substation, 4099921 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 20,493.78 19,234.37 1,259.41 6.15%
1.82 Volts 125.03 120.82 4.21 3.37%
Weekend kWh 17,918.83 16,734.93 1,183.90 6.61%
1.82 Volts 125.02 120.49 4.53 3.62%
Phase B Heating
Weekday kWh 30,312.34 28,447.72 1,864.62 6.15%
1.82 Volts 124.98 120.77 4.21 3.37%
Weekend kWh 26,863.29 25,109.08 1,754.21 6.53%
1.82 Volts 125.01 120.53 4.47 3.58%
Phase C Heating
Weekday kWh 22,362.19 20,934.11 1,428.09 6.39%
1.83 Volts 125.17 120.79 4.38 3.50%
Weekend kWh 20,034.03 18,691.79 1,342.24 6.70%
1.83 Volts 125.22 120.63 4.59 3.67%
Indiana Michigan Power Company
Table 4-37 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Side Substation, 4099922 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 32,001.99 29,879.42 2,122.58 6.63%
1.97 Volts 125.04 120.83 4.21 3.37%
Weekend kWh 26,736.64 24,830.57 1,906.07 7.13%
1.97 Volts 125.03 120.50 4.53 3.62%
Phase B Heating
Weekday kWh 33,798.20 31,554.53 2,243.67 6.64%
1.97 Volts 124.99 120.77 4.21 3.37%
Weekend kWh 28,376.72 26,377.65 1,999.07 7.04%
1.97 Volts 125.01 120.54 4.47 3.58%
Phase C Heating
Weekday kWh 32,045.37 29,839.64 2,205.73 6.88%
1.97 Volts 125.18 120.81 4.37 3.49%
Weekend kWh 26,936.76 24,987.61 1,949.16 7.24%
1.97 Volts 125.24 120.65 4.59 3.67%
Indiana Michigan Power Company
Table 4-38 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: South Side Substation, 4099923 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 15,006.14 13,871.73 1,134.42 7.56%
2.25 Volts 125.02 120.81 4.21 3.37%
Weekend kWh 11,250.12 10,335.61 914.51 8.13%
2.25 Volts 125.01 120.49 4.53 3.62%
Phase B Heating
Weekday kWh 19,595.27 18,112.34 1,482.93 7.57%
2.24 Volts 124.97 120.76 4.21 3.37%
Weekend kWh 15,383.22 14,147.78 1,235.44 8.03%
2.25 Volts 125.00 120.53 4.47 3.58%
Phase C Heating
Weekday kWh 18,111.80 16,688.06 1,423.74 7.86%
2.25 Volts 125.17 120.79 4.38 3.50%
Weekend kWh 14,564.51 13,363.69 1,200.82 8.24%
2.25 Volts 125.22 120.63 4.59 3.67%
Indiana Michigan Power Company
Table 4-39 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Spy Run Substation, 4923321 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 31,049.96 30,892.00 157.96 0.51%
0.17 Volts 125.29 121.62 3.67 2.93%
Weekend kWh 28,760.55 28,589.57 170.98 0.59%
0.19 Volts 125.36 121.39 3.97 3.17%
Cooling
Weekday kWh 33,354.27 33,116.48 237.79 0.71%
0.24 Volts 125.27 121.49 3.78 3.02%
Weekend kWh 32,878.16 32,644.92 233.24 0.71%
0.24 Volts 125.26 121.55 3.71 2.96%
Phase B
Heating
Weekday kWh 36,803.45 36,012.54 790.90 2.15%
0.60 Volts 125.51 121.01 4.50 3.59%
Weekend kWh 34,142.51 33,351.77 790.75 2.32%
0.64 Volts 125.42 120.92 4.50 3.59%
Cooling
Weekday kWh 40,705.87 39,648.27 1,057.61 2.60%
0.71 Volts 125.58 120.97 4.61 3.67%
Weekend kWh 39,778.47 38,724.90 1,053.57 2.65%
0.72 Volts 125.57 120.98 4.59 3.65%
Phase C
Heating
Weekday kWh 31,643.06 30,798.86 844.20 2.67%
0.71 Volts 125.38 120.67 4.71 3.76%
Weekend kWh 29,281.50 28,441.13 840.37 2.87%
0.77 Volts 125.28 120.59 4.69 3.75%
Cooling
Weekday kWh 34,883.68 34,305.44 578.24 1.66%
0.46 Volts 125.38 120.84 4.54 3.62%
Weekend kWh 34,192.08 33,612.13 579.95 1.70%
0.47 Volts 125.40 120.85 4.56 3.63%
Indiana Michigan Power Company
Table 4-40 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: Spy Run Substation, 4923322 Circuit
Phase Season Day of Week Measure
Average Daily Average Daily Difference % Difference
Estimated Daily
VVO Off VVO On (Off – On) CVR Factor
Phase A
Heating
Weekday kWh 43,358.78 43,883.16 -524.37 -1.21%
-0.40 Volts 125.29 121.55 3.74 2.99%
Weekend kWh 40,522.57 41,076.87 -554.31 -1.37%
-0.43 Volts 125.33 121.38 3.96 3.16%
Cooling
Weekday kWh 44,701.44 44,328.08 373.36 0.84%
0.23 Volts 125.54 121.06 4.47 3.56%
Weekend kWh 41,968.97 41,595.10 373.88 0.89%
0.25 Volts 125.44 120.96 4.48 3.57%
Phase B
Heating
Weekday kWh 45,906.36 45,803.16 103.19 0.22%
0.06 Volts 125.40 120.72 4.68 3.73%
Weekend kWh 43,190.82 43,088.58 102.24 0.24%
0.06 Volts 125.28 120.64 4.64 3.70%
Cooling
Weekday kWh 51,553.51 49,652.65 1,900.86 3.69%
1.23 Volts 125.24 121.49 3.75 3.00%
Weekend kWh 49,393.11 47,524.62 1,868.48 3.78%
1.28 Volts 125.23 121.54 3.69 2.95%
Phase C
Heating
Weekday kWh 52,932.06 50,325.56 2,606.50 4.92%
1.35 Volts 125.59 121.01 4.58 3.65%
Weekend kWh 50,797.33 48,183.21 2,614.12 5.15%
1.41 Volts 125.58 120.99 4.59 3.66%
Cooling
Weekday kWh 54,168.02 51,870.93 2,297.09 4.24%
1.17 Volts 125.41 120.86 4.55 3.62%
Weekend kWh 52,481.58 50,188.78 2,292.80 4.37%
1.21 Volts 125.43 120.89 4.54 3.62%
Indiana Michigan Power Company
Table 4-41 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: State Street Substation, 4928721 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 38,586.04 38,275.48 310.57 0.80%
0.31 Volts 124.69 121.42 3.27 2.62%
Weekend kWh 37,105.20 36,774.58 330.62 0.89%
0.32 Volts 124.72 121.24 3.48 2.79%
Phase B Heating
Weekday kWh 35,934.46 35,615.75 318.71 0.89%
0.33 Volts 125.48 122.12 3.36 2.67%
Weekend kWh 34,505.48 34,160.71 344.77 1.00%
0.35 Volts 125.67 122.04 3.63 2.89%
Phase C Heating
Weekday kWh 36,465.57 36,155.18 310.39 0.85%
0.33 Volts 125.54 122.27 3.27 2.60%
Weekend kWh 35,179.83 34,851.74 328.08 0.93%
0.34 Volts 125.64 122.18 3.45 2.75%
Indiana Michigan Power Company
Table 4-42 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: State Street Substation, 4928722 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 22,388.71 21,436.03 952.68 4.26%
1.62 Volts 124.69 121.41 3.28 2.63%
Weekend kWh 21,366.76 20,348.87 1,017.89 4.76%
1.69 Volts 124.72 121.21 3.51 2.81%
Phase B Heating
Weekday kWh 22,122.81 21,150.64 972.17 4.39%
1.65 Volts 125.47 122.12 3.35 2.67%
Weekend kWh 21,171.12 20,117.76 1,053.36 4.98%
1.72 Volts 125.67 122.04 3.63 2.89%
Phase C Heating
Weekday kWh 23,764.18 22,819.27 944.91 3.98%
1.53 Volts 125.54 122.28 3.25 2.59%
Weekend kWh 22,662.86 21,663.66 999.20 4.41%
1.61 Volts 125.63 122.19 3.44 2.74%
Indiana Michigan Power Company
Table 4-43 Daily PY2018 Energy Savings and CVR Factors by Phase, Season and Day of Week: State Street Substation, 4928723 Circuit
Phase Season Day of Week Measure
Average Daily
Average Daily Difference %
Difference
Estimated Daily CVR
Factor VVO Off VVO On (Off – On)
Phase A Heating
Weekday kWh 13,386.56 12,761.32 625.24 4.67%
1.77 Volts 124.69 121.41 3.28 2.63%
Weekend kWh 13,763.05 13,095.97 667.08 4.85%
1.73 Volts 124.72 121.22 3.50 2.81%
Phase B Heating
Weekday kWh 13,273.65 12,633.84 639.81 4.82%
1.80 Volts 125.47 122.11 3.36 2.68%
Weekend kWh 13,600.33 12,911.66 688.67 5.06%
1.76 Volts 125.65 122.04 3.62 2.88%
Phase C Heating
Weekday kWh 13,303.82 12,679.81 624.00 4.69%
1.80 Volts 125.54 122.26 3.28 2.61%
Weekend kWh 13,568.73 12,910.85 657.88 4.85%
1.76 Volts 125.63 122.18 3.45 2.75%
Indiana Michigan Power Company
5. Aggregate Energy Savings As discussed in Section 3.3, two sets of aggregate energy savings were calculated for the Indiana circuits.
One set of aggregate savings applies to savings calculated over those days in 2018 when VVO was “on”. These savings are reported in Section 5.1.
A second set of aggregate savings was calculated to show the savings that would have resulted if VVO had been continually “on” during all of 2018. These savings are reported in Section 5.2.
5.1 kWh Savings in 2018 When VVO was “On”
The kWh savings for 2018 were first calculated for days when VVO was “on”. The results for this calculation are reported for each circuit in Table 5-1 though Table 5-11.7 Total energy savings are summarized in Table 5-12.
Table 5-1 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: East Side Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
East Side Substation, 4093121 Circuit
Heating Weekday 40,808 46,823 49,179 136,810 Weekend 20,030 22,578 24,184 66,792
Cooling Weekday 14,752 15,476 17,115 47,342 Weekend 5,730 6,823 7,763 20,316
Both Seasons
Weekday 55,559 62,299 66,294 184,153 Weekend 25,760 29,401 31,946 87,107
Total kWh Savings 81,320 91,700 98,240 271,260
East Side Substation, 4093122 Circuit
Heating Weekday 143,808 117,518 146,984 408,309 Weekend 68,989 55,515 71,220 195,723
Cooling Weekday 37,272 30,684 34,308 102,264 Weekend 15,473 13,082 14,499 43,054
Both Seasons
Weekday 181,080 148,201 181,292 510,573 Weekend 84,461 68,597 85,719 238,777
Total kWh Savings 265,541 216,798 267,010 749,350
East Side Substation, 4093123 Circuit
Heating Weekday 129,147 131,972 147,129 408,248 Weekend 63,613 63,920 72,957 200,489
Cooling Weekday 21,498 31,887 35,338 88,722 Weekend 9,273 14,110 16,361 39,744 Weekday 150,645 163,859 182,466 496,970
7 There are no estimated energy savings for Grabill circuits. For these circuits, voltage patterns did not appear to demonstrate typical CVR on states.
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Both Seasons Weekend 72,886 78,030 89,318 240,234
Total kWh Savings 223,531 241,889 271,784 737,204
East Side Substation, 4093124 Circuit
Heating Weekday 139,260 150,484 156,291 446,035 Weekend 67,024 71,353 76,131 214,508
Cooling Weekday 25,794 16,944 25,498 68,236 Weekend 9,442 6,247 9,411 25,100
Both Seasons
Weekday 165,055 167,427 181,789 514,271 Weekend 76,465 77,600 85,542 239,608
Total kWh Savings 241,520 245,027 267,331 753,879
East Side Substation, 4093125 Circuit
Heating Weekday 104,467 124,153 138,112 366,732 Weekend 50,057 58,596 66,883 175,536
Cooling Weekday 27,411 25,286 27,537 80,234 Weekend 9,820 9,158 9,741 28,719
Both Seasons
Weekday 131,878 149,439 165,649 446,966 Weekend 59,877 67,754 76,624 204,255
Total kWh Savings 191,755 217,193 242,273 651,221
East Side Substation, 4093126 Circuit
Heating Weekday 96,528 126,516 128,952 351,996 Weekend 46,700 60,588 63,418 170,706
Cooling Weekday 15,684 19,631 20,314 55,628 Weekend 5,945 7,531 7,727 21,202
Both Seasons
Weekday 112,212 146,146 149,265 407,624 Weekend 52,645 68,118 71,145 191,908
Total kWh Savings 164,857 214,265 220,410 599,532
EastSide Substation-
Total
Heating Weekday 654,018 697,465 766,647 2,118,130 Weekend 316,413 332,549 374,793 1,023,754
Cooling Weekday 142,410 139,908 160,109 442,426 Weekend 55,682 56,952 65,502 178,136
Both Seasons
Weekday 796,428 837,373 926,756 2,560,556 Weekend 372,095 389,500 440,294 1,201,889
Total kWh Savings 1,168,523 1,226,873 1,367,050 3,762,446
Table 5-2 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Elcona Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Elcona Substation, Heating
Weekday 8,795 11,835 10,340 30,970 Weekend 1,747 2,183 1,811 5,741
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
4938121 Circuit Cooling
Weekday 2,507 2,845 2,447 7,798 Weekend 504 591 483 1,579
Both Seasons
Weekday 11,301 14,680 12,787 38,768 Weekend 2,251 2,775 2,294 7,320
Total kWh Savings 13,553 17,455 15,081 46,088
Elcona Substation, 4938122 Circuit
Heating Weekday 47,665 63,899 63,586 175,149 Weekend 18,139 22,546 22,310 62,995
Cooling Weekday 5,580 6,177 6,085 17,843 Weekend 2,294 2,640 2,546 7,479
Both Seasons
Weekday 53,245 70,076 69,671 192,992 Weekend 20,432 25,186 24,856 70,474
Total kWh Savings 73,677 95,262 94,527 263,466
Elcona Substation, 4938123 Circuit
Heating Weekday 96,029 115,095 116,559 327,684 Weekend 36,372 37,365 39,095 112,833
Cooling Weekday 7,972 7,859 7,973 23,804 Weekend 3,281 3,116 3,250 9,647
Both Seasons
Weekday 104,001 122,955 124,533 351,488 Weekend 39,654 40,481 42,345 122,480
Total kWh Savings 143,654 163,436 166,878 473,968
Elcona Substation-
Total
Heating Weekday 152,489 190,829 190,485 533,803 Weekend 56,258 62,094 63,216 181,569
Cooling Weekday 16,058 16,881 16,505 49,445 Weekend 6,079 6,347 6,279 18,705
Both Seasons
Weekday 168,547 207,711 206,991 583,248 Weekend 62,337 68,442 69,495 200,274
Total kWh Savings 230,884 276,152 276,486 783,522
Table 5-3 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Hacienda Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Hacienda Substation, 4933521 Circuit
Heating Weekday 7,300 8,957 5,585 21,841 Weekend 3,177 3,952 2,441 9,571
Cooling Weekday 1,012 1,594 1,076 3,682 Weekend 454 619 409 1,483
Both Seasons
Weekday 8,312 10,551 6,660 25,523 Weekend 3,631 4,571 2,851 11,053
Total kWh Savings 11,943 15,122 9,511 36,576
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Hacienda Substation, 4933523 Circuit
Heating Weekday 46,386 42,243 42,285 130,913 Weekend 21,158 19,292 18,777 59,227
Cooling Weekday 908 1,097 1,270 3,274 Weekend 412 425 475 1,311
Both Seasons
Weekday 47,293 43,339 43,555 134,187 Weekend 21,570 19,717 19,251 60,538
Total kWh Savings 68,863 63,056 62,806 194,725
Hacienda Substation, 4933524 Circuit
Heating Weekday 6,106 6,515 5,941 18,562 Weekend 2,655 2,823 2,543 8,020
Cooling Weekday 732 1,106 1,086 2,924 Weekend 333 426 415 1,174
Both Seasons
Weekday 6,838 7,621 7,027 21,486 Weekend 2,988 3,249 2,958 9,195
Total kWh Savings 9,826 10,870 9,985 30,680
Hacienda Substation, 4933525 Circuit
Heating Weekday 17,255 31,882 35,722 84,859 Weekend 8,838 14,928 16,869 40,635
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 17,255 31,882 35,722 84,859 Weekend 8,838 14,928 16,869 40,635
Total kWh Savings 26,093 46,811 52,591 125,494
Hacienda Substation, 4933526 Circuit
Heating Weekday 12,822 25,499 25,496 63,817 Weekend 6,416 11,877 12,013 30,306
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 12,822 25,499 25,496 63,817 Weekend 6,416 11,877 12,013 30,306
Total kWh Savings 19,239 37,376 37,509 94,124
Hacienda Substation, 4933527 Circuit
Heating Weekday 15,156 33,423 27,703 76,282 Weekend 7,425 14,984 12,631 35,041
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 15,156 33,423 27,703 76,282 Weekend 7,425 14,984 12,631 35,041
Total kWh Savings 22,582 48,407 40,334 111,323
Hacienda Substation-
Total
Heating Weekday 105,025 148,518 142,732 396,275 Weekend 49,669 67,857 65,274 182,800
Cooling Weekday 2,651 3,797 3,431 9,880 Weekend 1,200 1,469 1,299 3,968
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Both Seasons
Weekday 107,676 152,316 146,163 406,155 Weekend 50,869 69,326 66,574 186,768
Total kWh Savings 158,545 221,641 212,737 592,923
Table 5-4 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Harper Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Harper Substation, 4928821 Circuit
Heating Weekday 29,900 28,227 36,481 94,608 Weekend 10,504 9,824 11,662 31,990
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 29,900 28,227 36,481 94,608 Weekend 10,504 9,824 11,662 31,990
Total kWh Savings 40,404 38,051 48,143 126,597
Harper Substation, 4928822 Circuit
Heating Weekday 28,062 40,237 39,914 108,213 Weekend 11,199 17,752 15,147 44,098
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 28,062 40,237 39,914 108,213 Weekend 11,199 17,752 15,147 44,098
Total kWh Savings 39,261 57,989 55,061 152,310
Harper Substation-
Total
Heating Weekday 57,962 68,464 76,395 202,820 Weekend 21,703 27,576 26,809 76,088
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 57,962 68,464 76,395 202,820 Weekend 21,703 27,576 26,809 76,088
Total kWh Savings 79,664 96,040 103,203 278,908
Table 5-5 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Lincoln Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Lincoln Substation, Heating
Weekday 23,650 16,778 9,927 50,356 Weekend 8,253 4,940 2,915 16,108
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
4051821 Circuit Cooling
Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 23,650 16,778 9,927 50,356 Weekend 8,253 4,940 2,915 16,108
Total kWh Savings 31,903 21,718 12,842 66,464
Lincoln Substation, 4051822 Circuit
Heating Weekday 20,262 14,217 8,766 43,245 Weekend 9,007 5,499 3,282 17,789
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 20,262 14,217 8,766 43,245 Weekend 9,007 5,499 3,282 17,789
Total kWh Savings 29,269 19,717 12,048 61,034
Lincoln Substation, 4051824 Circuit
Heating Weekday 17,871 12,972 7,924 38,767 Weekend 6,894 4,267 2,562 13,722
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 17,871 12,972 7,924 38,767 Weekend 6,894 4,267 2,562 13,722
Total kWh Savings 24,765 17,238 10,486 52,489
Lincoln Substation-
Total
Heating Weekday 61,783 43,967 26,618 132,368 Weekend 24,154 14,706 8,758 47,619
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 61,783 43,967 26,618 132,368 Weekend 24,154 14,706 8,758 47,619
Total kWh Savings 85,937 58,673 35,376 179,987
Table 5-6 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Northland Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Northland Substation, 4933421 Circuit
Heating Weekday 50,351 20,853 11,314 82,518 Weekend 19,297 8,291 4,491 32,079
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 50,351 20,853 11,314 82,518 Weekend 19,297 8,291 4,491 32,079
Total kWh Savings 69,647 29,145 15,805 114,597
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Northland Substation, 4933422 Circuit
Heating Weekday 58,204 23,871 13,174 95,249 Weekend 29,808 12,625 7,057 49,490
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 58,204 23,871 13,174 95,249 Weekend 29,808 12,625 7,057 49,490
Total kWh Savings 88,012 36,496 20,231 144,739
Northland Substation, 4933423 Circuit
Heating Weekday 59,920 25,081 13,833 98,834 Weekend 29,822 12,627 7,057 49,506
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 59,920 25,081 13,833 98,834 Weekend 29,822 12,627 7,057 49,506
Total kWh Savings 89,742 37,708 20,891 148,341
Northland Substation, 4933424 Circuit
Heating Weekday 62,308 28,738 14,811 105,858 Weekend 22,518 9,915 4,996 37,428
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 62,308 28,738 14,811 105,858 Weekend 22,518 9,915 4,996 37,428
Total kWh Savings 84,826 38,653 19,807 143,286
Northland Substation, 4933425 Circuit
Heating Weekday 62,354 28,745 14,811 105,910 Weekend 22,532 9,921 4,985 37,438
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 62,354 28,745 14,811 105,910 Weekend 22,532 9,921 4,985 37,438
Total kWh Savings 84,886 38,666 19,796 143,349
Northland Substation, 4933426 Circuit
Heating Weekday 62,194 28,706 14,800 105,700 Weekend 22,533 9,923 4,987 37,443
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 62,194 28,706 14,800 105,700 Weekend 22,533 9,923 4,987 37,443
Total kWh Savings 84,728 38,629 19,787 143,144
Northland Substation-
Total
Heating Weekday 355,331 155,995 82,743 594,069 Weekend 146,509 63,302 33,574 243,386
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Both Seasons
Weekday 355,331 155,995 82,743 594,069 Weekend 146,509 63,302 33,574 243,386
Total kWh Savings 501,841 219,297 116,318 837,455
Table 5-7 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Osolo Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Osolo Substation, 4058021 Circuit
Heating Weekday 64,766 75,057 75,209 215,032 Weekend 26,545 28,126 25,150 79,821
Cooling Weekday 4,096 5,315 5,713 15,123 Weekend 1,195 1,247 1,210 3,652
Both Seasons
Weekday 68,861 80,372 80,922 230,155 Weekend 27,740 29,373 26,360 83,473
Total kWh Savings 96,602 109,744 107,282 313,628
Osolo Substation, 4058022 Circuit
Heating Weekday 27,267 30,139 37,018 94,424 Weekend 9,399 9,792 11,696 30,888
Cooling Weekday 3,043 3,908 5,340 12,291 Weekend 983 984 1,314 3,281
Both Seasons
Weekday 30,310 34,046 42,358 106,714 Weekend 10,382 10,777 13,010 34,169
Total kWh Savings 40,692 44,823 55,368 140,883
Osolo Substation, 4058023 Circuit
Heating Weekday 30,537 34,979 34,512 100,028 Weekend 8,847 9,631 9,004 27,483
Cooling Weekday 3,972 5,595 5,840 15,407 Weekend 1,289 1,463 1,424 4,175
Both Seasons
Weekday 34,510 40,575 40,351 115,436 Weekend 10,136 11,094 10,428 31,658
Total kWh Savings 44,646 51,669 50,779 147,094
Osolo Substation, 4058024 Circuit
Heating Weekday 35,983 30,089 19,544 85,616 Weekend 14,269 12,072 10,342 36,682
Cooling Weekday 3,216 3,191 2,443 8,850 Weekend 685 632 609 1,926
Both Seasons
Weekday 39,198 33,280 21,987 94,466 Weekend 14,954 12,704 10,951 38,608
Total kWh Savings 54,152 45,984 32,938 133,074
Osolo Substation, Heating
Weekday 15,982 17,939 11,887 45,807 Weekend 5,989 7,013 6,287 19,290
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
4058025 Circuit Cooling
Weekday 2,175 2,408 2,188 6,771 Weekend 480 495 549 1,524
Both Seasons
Weekday 18,157 20,347 14,075 52,578 Weekend 6,469 7,509 6,836 20,814
Total kWh Savings 24,626 27,855 20,911 73,392
Osolo Substation, 4058026 Circuit
Heating Weekday 12,441 11,580 8,656 32,677 Weekend 3,679 3,292 3,421 10,392
Cooling Weekday -531 -526 -444 -1,502 Weekend -79 -69 -75 -224
Both Seasons
Weekday 11,909 11,054 8,212 31,175 Weekend 3,599 3,223 3,345 10,168
Total kWh Savings 15,509 14,277 11,557 41,343
Osolo Substation-
Total
Heating Weekday 186,975 199,783 186,826 573,584 Weekend 68,728 69,927 65,900 204,555
Cooling Weekday 15,971 19,891 21,079 56,940 Weekend 4,553 4,753 5,030 14,335
Both Seasons
Weekday 202,946 219,673 207,905 630,524 Weekend 73,281 74,679 70,930 218,890
Total kWh Savings 276,226 294,353 278,835 849,414
Table 5-8 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: South Bend Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
South Bend
Substation, 4050321 Circuit
Heating Weekday 10,764 11,697 22,594 45,054 Weekend 5,390 5,714 11,294 22,398
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 10,764 11,697 22,594 45,054 Weekend 5,390 5,714 11,294 22,398
Total kWh Savings 16,154 17,411 33,887 67,452
South Bend
Substation, 4050322 Circuit
Heating Weekday 10,624 11,502 22,088 44,214 Weekend 5,354 5,782 11,180 22,316
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 10,624 11,502 22,088 44,214 Weekend 5,354 5,782 11,180 22,316
Total kWh Savings 15,978 17,283 33,269 66,530
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
South Bend
Substation, 4050323 Circuit
Heating Weekday 10,818 11,823 22,474 45,115 Weekend 5,398 5,840 11,274 22,513
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 10,818 11,823 22,474 45,115 Weekend 5,398 5,840 11,274 22,513
Total kWh Savings 16,216 17,664 33,749 67,628
South Bend
Substation-Total
Heating Weekday 32,205 35,022 67,156 134,383 Weekend 16,142 17,336 33,749 67,227
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 32,205 35,022 67,156 134,383 Weekend 16,142 17,336 33,749 67,227
Total kWh Savings 48,347 52,358 100,905 201,610
Table 5-9 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: South Side Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
South Side Substation, 4099921 Circuit
Heating Weekday 83,698 123,609 94,670 301,978 Weekend 33,840 50,287 38,477 122,604
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 83,698 123,609 94,670 301,978 Weekend 33,840 50,287 38,477 122,604
Total kWh Savings 117,538 173,896 133,148 424,582
South Side Substation, 4099922 Circuit
Heating Weekday 141,063 148,737 145,946 435,746 Weekend 54,482 57,307 55,876 167,664
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 141,063 148,737 145,946 435,746 Weekend 54,482 57,307 55,876 167,664
Total kWh Savings 195,545 206,044 201,822 603,410
South Side Substation, 4099923 Circuit
Heating Weekday 75,391 98,306 94,382 268,079 Weekend 26,140 35,416 34,423 95,979
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0 Weekday 75,391 98,306 94,382 268,079
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Both Seasons Weekend 26,140 35,416 34,423 95,979
Total kWh Savings 101,531 133,722 128,805 364,058
South Side Substation-
Total
Heating Weekday 300,153 370,652 334,998 1,005,803 Weekend 114,461 143,010 128,777 386,248
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 300,153 370,652 334,998 1,005,803 Weekend 114,461 143,010 128,777 386,248
Total kWh Savings 414,614 513,662 463,775 1,392,051
Table 5-10 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: Spy Run Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Spy Run Substation, 4923321 Circuit
Heating Weekday 18,477 92,514 98,748 209,738 Weekend 9,207 42,580 45,252 97,038
Cooling Weekday 4,340 19,301 10,553 34,194 Weekend 1,847 8,341 4,591 14,779
Both Seasons
Weekday 22,816 111,815 109,301 243,932 Weekend 11,053 50,920 49,843 111,816
Total kWh Savings 33,869 162,735 159,144 355,748
Spy Run Substation, 4923322 Circuit
Heating Weekday 0 11,714 295,874 307,587 Weekend 0 5,351 136,806 142,156
Cooling Weekday 6,814 34,691 41,922 83,426 Weekend 2,960 14,792 18,151 35,903
Both Seasons
Weekday 6,814 46,405 337,795 391,014 Weekend 2,960 20,143 154,957 178,060
Total kWh Savings 9,774 66,547 492,752 569,073
Spy Run Substation-
Total
Heating Weekday 18,477 104,227 394,622 517,326 Weekend 9,207 47,930 182,057 239,194
Cooling Weekday 11,153 53,992 52,475 117,620 Weekend 4,806 23,133 22,743 50,682
Both Seasons
Weekday 29,630 158,219 447,096 634,946 Weekend 14,013 71,063 204,800 289,876
Total kWh Savings 43,643 229,283 651,896 924,822
Indiana Michigan Power Company
Table 5-11 PY2018 kWh Savings with VVO On by Circuit, Season, and Day of Week: State Street Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
State Street
Substation, 4928721 Circuit
Heating Weekday 26,631 27,329 26,616 80,576 Weekend 12,775 13,321 12,677 38,773
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 26,631 27,329 26,616 80,576 Weekend 12,775 13,321 12,677 38,773
Total kWh Savings 39,406 40,651 39,293 119,349
State Street
Substation, 4928722 Circuit
Heating Weekday 81,573 83,242 80,908 245,723 Weekend 39,217 40,584 38,497 118,298
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 81,573 83,242 80,908 245,723 Weekend 39,217 40,584 38,497 118,298
Total kWh Savings 120,790 123,825 119,405 364,021
State Street
Substation, 4928723 Circuit
Heating Weekday 53,693 54,943 53,586 162,222 Weekend 25,784 26,619 25,429 77,832
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 53,693 54,943 53,586 162,222 Weekend 25,784 26,619 25,429 77,832
Total kWh Savings 79,477 81,562 79,015 240,055
State Street
Substation-Total
Heating Weekday 161,897 165,514 161,110 488,522 Weekend 77,776 80,524 76,603 234,903
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 161,897 165,514 161,110 488,522 Weekend 77,776 80,524 76,603 234,903
Total kWh Savings 239,673 246,038 237,713 723,425
Table 5-12 Summary of PY2018 kWh Savings by Substation and Circuit
Substation Circuit ID Annual
kWh Savings
East Side
4093121 271,260
4093122 749,350
4093123 737,204
4093124 753,879
Indiana Michigan Power Company
Substation Circuit ID Annual
kWh Savings
4093125 651,221
4093126 599,532
Total 3,762,446
Elcona
4938121 46,088
4938122 263,466
4938123 473,968
Total 783,522
Grabill
4935221 0
4935222 0
4935223 0
Total 0
Hacienda
4933521 36,576
4933523 194,725
4933524 30,680
4933525 125,494
4933526 94,124
4933527 111,323
Total 592,922
Harper
4928821 126,597
4928822 152,310
Total 278,907
Lincoln
4051821 66,464 4051822 61,034 4051824 52,489
Total 179,987
Northland
4933421 114,597
4933422 144,739
4933423 148,341
4933424 143,286
4933425 143,349
4933426 143,144
Total 837,455
Osolo
4058021 313,628
4058022 140,883
4058023 147,094
4058024 133,074
4058025 73,392
4058026 41,343
Total 849,414
Indiana Michigan Power Company
Substation Circuit ID Annual
kWh Savings
South Bend
4050321 67,452
4050322 66,530
4050323 67,628
Total 201,610
South Side
4099921 424,582
4099922 603,410
4099923 364,058
Total 1,392,050
Spy Run
4923321 355,748
4923322 569,073
Total 924,821
State Street
4928721 119,349
4928722 364,021
4928723 240,055
Total 723,425
Grand Total 10,526,559
Indiana Michigan Power Company
5.2 Counterfactual kWh Savings had VVO Always Been “On”
The kWh savings determined for 2018 were used to project kWh savings associated with the counterfactual scenario of continuous “on” VVO operation during 2018. The results for this calculation are reported for each circuit in Table 5-13 through Table 5-23.8 Total energy savings are summarized in Table 5-24.
Table 5-13 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: East Side Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
East Side Substation, 4093121 Circuit
Heating Weekday 54,625 62,677 65,831 183,133 Weekend 23,348 26,318 28,189 77,854
Cooling Weekday 25,700 26,961 29,817 82,478 Weekend 9,304 11,079 12,605 32,989
Both Seasons
Weekday 80,325 89,639 95,648 265,611 Weekend 32,652 37,397 40,794 110,843
Total kWh Savings 112,977 127,035 136,442 376,454
East Side Substation, 4093122 Circuit
Heating Weekday 192,193 157,058 196,439 545,690 Weekend 80,682 64,924 83,291 228,898
Cooling Weekday 65,735 54,116 60,507 180,357 Weekend 25,226 21,329 23,638 70,193
Both Seasons
Weekday 257,928 211,173 256,946 726,047 Weekend 105,908 86,253 106,929 299,090
Total kWh Savings 363,836 297,426 363,875 1,025,138
East Side Substation, 4093123 Circuit
Heating Weekday 172,869 176,650 196,938 546,457 Weekend 74,164 74,522 85,058 233,744
Cooling Weekday 38,671 57,361 63,567 159,599 Weekend 15,059 22,913 26,568 64,540
Both Seasons
Weekday 211,540 234,010 260,505 706,056 Weekend 89,222 97,436 111,627 298,284
Total kWh Savings 300,762 331,446 372,132 1,004,340
East Side Substation, 4093124 Circuit
Heating Weekday 185,754 200,725 208,471 594,950 Weekend 76,341 81,272 86,714 244,327
Cooling Weekday 47,267 31,049 46,724 125,039 Weekend 16,008 10,592 15,957 42,557
Both Seasons
Weekday 233,021 231,773 255,195 719,989 Weekend 92,349 91,864 102,671 286,884
Total kWh Savings 325,370 323,637 357,866 1,006,874
8 Results are not presented for Grabill circuits because, for these circuits, voltage patterns did not appear to demonstrate typical CVR on states and no CVR factors were determined.
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
East Side Substation, 4093125 Circuit
Heating Weekday 150,683 179,078 199,213 528,975 Weekend 61,668 72,187 82,397 216,252
Cooling Weekday 48,371 44,622 48,593 141,585 Weekend 18,658 17,400 18,508 54,567
Both Seasons
Weekday 199,054 223,700 247,806 670,561 Weekend 80,326 89,587 100,905 270,819
Total kWh Savings 279,380 313,288 348,711 941,379
East Side Substation, 4093126 Circuit
Heating Weekday 139,673 183,063 186,588 509,324 Weekend 57,339 74,390 77,865 209,594
Cooling Weekday 26,868 33,630 34,800 95,298 Weekend 11,040 13,986 14,350 39,376
Both Seasons
Weekday 166,541 216,693 221,388 604,622 Weekend 68,379 88,376 92,215 248,970
Total kWh Savings 234,920 305,069 313,603 853,592
EastSide Substation-Total
Heating Weekday 895,798 959,251 1,053,480 2,908,529 Weekend 373,542 393,613 443,515 1,210,670
Cooling Weekday 252,611 247,738 284,008 784,358 Weekend 95,295 97,300 111,626 304,221
Both Seasons
Weekday 1,148,409 1,206,989 1,337,488 3,692,887 Weekend 468,837 490,913 555,141 1,514,891
Total kWh Savings 1,617,246 1,697,902 1,892,629 5,207,778
Table 5-14 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: Elcona Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Elcona Substation, 4938121 Circuit
Heating Weekday 14,512 18,824 16,406 49,743 Weekend 2,693 3,373 2,790 8,856
Cooling Weekday 26,970 32,156 27,072 86,198 Weekend 4,668 5,475 4,474 14,616
Both Seasons
Weekday 41,482 50,981 43,479 135,941 Weekend 7,360 8,848 7,264 23,472
Total kWh Savings 48,842 59,828 50,743 159,413
Elcona Substation, 4938122 Circuit
Heating Weekday 78,823 101,741 100,892 281,455 Weekend 27,976 34,827 34,383 97,185
Cooling Weekday 60,449 69,832 67,328 197,608 Weekend 21,232 24,438 23,564 69,235 Weekday 139,271 171,572 168,220 479,064
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Both Seasons Weekend 49,208 59,265 57,947 166,420
Total kWh Savings 188,479 230,838 226,167 645,484
Elcona Substation, 4938123 Circuit
Heating Weekday 158,573 183,067 184,946 526,585 Weekend 56,054 57,720 60,250 174,024
Cooling Weekday 85,766 88,845 88,214 262,824 Weekend 30,376 28,846 30,086 89,307
Both Seasons
Weekday 244,338 271,911 273,159 789,409 Weekend 86,429 86,566 90,336 263,331
Total kWh Savings 330,767 358,477 363,495 1,052,740
Elcona Substation-Total
Heating Weekday 251,907 303,632 302,244 857,783 Weekend 86,722 95,920 97,423 280,065
Cooling Weekday 173,184 190,833 182,614 546,630 Weekend 56,275 58,759 58,124 173,158
Both Seasons
Weekday 425,091 494,464 484,858 1,404,413 Weekend 142,997 154,679 155,547 453,223
Total kWh Savings 568,088 649,143 640,405 1,857,637
Table 5-15 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: Hacienda Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Hacienda Substation, 4933521 Circuit
Heating Weekday 12,642 15,516 9,642 37,801 Weekend 5,455 6,776 4,178 16,409
Cooling Weekday 3,065 4,702 3,166 10,933 Weekend 1,575 2,144 1,411 5,130
Both Seasons
Weekday 15,707 20,219 12,808 48,733 Weekend 7,030 8,919 5,589 21,539
Total kWh Savings 22,737 29,138 18,397 70,272
Hacienda Substation, 4933523 Circuit
Heating Weekday 80,299 73,154 72,980 226,433 Weekend 36,333 33,073 32,133 101,539
Cooling Weekday 2,750 3,234 3,738 9,722 Weekend 1,428 1,471 1,636 4,535
Both Seasons
Weekday 83,049 76,388 76,718 236,155 Weekend 37,761 34,544 33,769 106,074
Total kWh Savings 120,810 110,932 110,487 342,228
Hacienda Substation, 4933524 Circuit Heating
Weekday 10,570 11,282 10,254 32,106 Weekend 4,560 4,839 4,351 13,750
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Cooling Weekday 2,217 3,262 3,196 8,675 Weekend 1,154 1,476 1,431 4,061
Both Seasons
Weekday 12,786 14,545 13,450 40,781 Weekend 5,714 6,315 5,782 17,811
Total kWh Savings 18,500 20,860 19,232 58,592
Hacienda Substation, 4933525 Circuit
Heating Weekday 93,937 139,189 156,100 389,227 Weekend 42,630 60,825 68,734 172,190
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 93,937 139,189 156,100 389,227 Weekend 42,630 60,825 68,734 172,190
Total kWh Savings 136,568 200,015 224,835 561,417
Hacienda Substation, 4933526 Circuit
Heating Weekday 69,890 111,322 111,308 292,519 Weekend 31,102 48,392 48,948 128,442
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 69,890 111,322 111,308 292,519 Weekend 31,102 48,392 48,948 128,442
Total kWh Savings 100,992 159,714 160,256 420,962
Hacienda Substation, 4933527 Circuit
Heating Weekday 82,222 145,914 121,060 349,196 Weekend 35,728 61,054 51,466 148,248
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 82,222 145,914 121,060 349,196 Weekend 35,728 61,054 51,466 148,248
Total kWh Savings 117,950 206,968 172,526 497,444
Hacienda Substation-Total
Heating Weekday 349,559 496,379 481,343 1,327,282 Weekend 155,809 214,958 209,811 580,578
Cooling Weekday 8,031 11,198 10,100 29,329 Weekend 4,157 5,091 4,478 13,725
Both Seasons
Weekday 357,591 507,577 491,443 1,356,611 Weekend 159,966 220,049 214,289 594,304
Total kWh Savings 517,557 727,626 705,732 1,950,915
Table 5-16 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: Harper Substation
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Harper Substation, 4928821 Circuit
Heating Weekday 114,504 117,416 132,615 364,535 Weekend 39,676 36,966 43,550 120,193
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 114,504 117,416 132,615 364,535 Weekend 39,676 36,966 43,550 120,193
Total kWh Savings 154,180 154,382 176,165 484,728
Harper Substation, 4928822 Circuit
Heating Weekday 107,555 167,526 145,326 420,406 Weekend 42,302 66,801 56,563 165,665
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 107,555 167,526 145,326 420,406 Weekend 42,302 66,801 56,563 165,665
Total kWh Savings 149,857 234,326 201,889 586,072
Harper Substation-Total
Heating Weekday 222,058 284,942 277,941 784,941 Weekend 81,978 103,767 100,113 285,858
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 222,058 284,942 277,941 784,941 Weekend 81,978 103,767 100,113 285,858
Total kWh Savings 304,037 388,709 378,054 1,070,799
Table 5-17 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: Lincoln Substation
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Lincoln Substation, 4051821 Circuit
Heating Weekday 107,338 110,189 114,054 331,581 Weekend 33,768 33,993 34,766 102,527
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 107,338 110,189 114,054 331,581 Weekend 33,768 33,993 34,766 102,527
Total kWh Savings 141,106 144,182 148,820 434,108
Lincoln Substation, 4051822 Circuit
Heating Weekday 91,961 93,370 100,710 286,041 Weekend 36,853 37,841 39,145 113,840
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0 Weekday 91,961 93,370 100,710 286,041
Indiana Michigan Power Company
Circuit ID Season Day of Week
kWh Savings
Phase A Phase B Phase C Sum of Phases
Both Seasons Weekend 36,853 37,841 39,145 113,840
Total kWh Savings 128,814 131,211 139,856 399,881
Lincoln Substation, 4051824 Circuit
Heating Weekday 81,110 85,189 91,040 257,339 Weekend 28,205 29,360 30,553 88,118
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 81,110 85,189 91,040 257,339 Weekend 28,205 29,360 30,553 88,118
Total kWh Savings 109,315 114,549 121,593 345,457
Lincoln Substation-Total
Heating Weekday 280,409 288,747 305,804 874,961 Weekend 98,826 101,194 104,464 304,485
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 280,409 288,747 305,804 874,961 Weekend 98,826 101,194 104,464 304,485
Total kWh Savings 379,235 389,942 410,269 1,179,446
Table 5-18 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: Northland Substation
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
Northland Substation, 4933421 Circuit
Heating Weekday 91,070 37,718 20,464 149,251 Weekend 47,018 20,203 10,943 78,164
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 91,070 37,718 20,464 149,251 Weekend 47,018 20,203 10,943 78,164
Total kWh Savings 138,088 57,920 31,407 227,416
Northland Substation, 4933422 Circuit
Heating Weekday 84,323 34,582 19,086 137,991 Weekend 42,573 18,032 10,079 70,685
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 84,323 34,582 19,086 137,991 Weekend 42,573 18,032 10,079 70,685
Total kWh Savings 126,896 52,614 29,165 208,676
Northland Substation, 4933423 Circuit Heating
Weekday 87,614 36,674 20,227 144,515 Weekend 43,379 18,367 10,266 72,012
Indiana Michigan Power Company
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 87,614 36,674 20,227 144,515 Weekend 43,379 18,367 10,266 72,012
Total kWh Savings 130,993 55,041 30,492 216,527
Northland Substation, 4933424 Circuit
Heating Weekday 96,892 44,689 23,031 164,612 Weekend 35,350 15,565 7,843 58,758
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 96,892 44,689 23,031 164,612 Weekend 35,350 15,565 7,843 58,758
Total kWh Savings 132,242 60,254 30,875 223,370
Northland Substation, 4933425 Circuit
Heating Weekday 96,499 44,486 22,922 163,907 Weekend 35,119 15,464 7,770 58,353
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 96,499 44,486 22,922 163,907 Weekend 35,119 15,464 7,770 58,353
Total kWh Savings 131,618 59,950 30,692 222,260
Northland Substation, 4933426 Circuit
Heating Weekday 96,239 44,420 22,901 163,560 Weekend 35,053 15,436 7,759 58,248
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 96,239 44,420 22,901 163,560 Weekend 35,053 15,436 7,759 58,248
Total kWh Savings 131,293 59,856 30,660 221,808
Northland Substation-Total
Heating Weekday 552,637 242,569 128,631 923,837 Weekend 238,493 103,067 54,660 396,220
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 552,637 242,569 128,631 923,837 Weekend 238,493 103,067 54,660 396,220
Total kWh Savings 791,131 345,635 183,291 1,320,057
Table 5-19 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: Osolo Substation
Indiana Michigan Power Company
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
Osolo Substation, 4058021 Circuit
Heating Weekday 204,327 228,157 221,567 654,051 Weekend 77,624 82,123 73,544 233,291
Cooling Weekday 52,802 57,577 58,250 168,629 Weekend 16,835 17,194 16,335 50,364
Both Seasons
Weekday 257,129 285,734 279,817 822,680 Weekend 94,459 99,317 89,879 283,654
Total kWh Savings 351,587 385,051 369,696 1,106,335
Osolo Substation, 4058022 Circuit
Heating Weekday 86,379 91,555 109,057 286,990 Weekend 27,486 28,592 34,202 90,280
Cooling Weekday 41,284 42,332 54,443 138,059 Weekend 13,848 13,571 17,739 45,158
Both Seasons
Weekday 127,662 133,887 163,500 425,049 Weekend 41,334 42,163 51,941 135,439
Total kWh Savings 168,996 176,050 215,442 560,488
Osolo Substation, 4058023 Circuit
Heating Weekday 96,741 106,400 101,737 304,878 Weekend 25,910 28,165 26,369 80,443
Cooling Weekday 53,421 60,616 60,330 174,367 Weekend 18,157 20,168 19,219 57,545
Both Seasons
Weekday 150,162 167,016 162,067 479,245 Weekend 44,067 48,333 45,588 137,988
Total kWh Savings 194,229 215,349 207,654 617,233
Osolo Substation, 4058024 Circuit
Heating Weekday 128,561 111,412 89,233 329,206 Weekend 51,809 43,832 37,761 133,402
Cooling Weekday 57,006 55,317 44,315 156,637 Weekend 19,299 17,807 17,152 54,258
Both Seasons
Weekday 185,567 166,729 133,547 485,843 Weekend 71,108 61,639 54,913 187,660
Total kWh Savings 256,675 228,368 188,460 673,503
Osolo Substation, 4058025 Circuit
Heating Weekday 57,102 66,050 53,367 176,519 Weekend 21,746 25,466 22,956 70,168
Cooling Weekday 38,553 41,736 39,233 119,523 Weekend 13,520 13,954 15,466 42,940
Both Seasons
Weekday 95,655 107,786 92,600 296,042 Weekend 35,267 39,420 38,421 113,108
Total kWh Savings 130,922 147,206 131,022 409,150
Osolo Substation, 4058026 Circuit
Heating Weekday 44,449 42,877 39,444 126,771 Weekend 13,358 11,955 12,489 37,802
Cooling Weekday -9,416 -9,123 -8,060 -26,600 Weekend -2,339 -2,033 -2,221 -6,593
Indiana Michigan Power Company
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
Both Seasons
Weekday 35,032 33,754 31,384 100,171 Weekend 11,019 9,922 10,268 31,209
Total kWh Savings 46,051 43,676 41,652 131,380
Osolo Substation-Total
Heating Weekday 617,558 646,451 614,406 1,878,415 Weekend 217,933 220,133 207,321 645,386
Cooling Weekday 233,650 248,455 248,510 730,615 Weekend 79,321 80,662 83,689 243,672
Both Seasons
Weekday 851,207 894,906 862,916 2,609,030 Weekend 297,253 300,795 291,010 889,058
Total kWh Savings 1,148,461 1,195,701 1,153,926 3,498,088
Table 5-20 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: South Bend Substation
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
South Bend Substation, 4050321
Circuit
Heating Weekday 60,600 65,850 127,198 253,648 Weekend 25,861 27,419 54,191 107,470
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 60,600 65,850 127,198 253,648 Weekend 25,861 27,419 54,191 107,470
Total kWh Savings 86,460 93,269 181,389 361,118
South Bend Substation, 4050322
Circuit
Heating Weekday 59,414 64,323 123,530 247,267 Weekend 26,281 28,380 54,880 109,540
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 59,414 64,323 123,530 247,267 Weekend 26,281 28,380 54,880 109,540
Total kWh Savings 85,695 92,703 178,410 356,808
South Bend Substation, 4050323
Circuit
Heating Weekday 61,910 67,666 128,622 258,198 Weekend 26,753 28,945 55,876 111,574
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 61,910 67,666 128,622 258,198 Weekend 26,753 28,945 55,876 111,574
Total kWh Savings 88,662 96,611 184,498 369,772
South Bend Substation-Total Heating
Weekday 181,923 197,839 379,351 759,113 Weekend 78,894 84,744 164,947 328,585
Indiana Michigan Power Company
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 181,923 197,839 379,351 759,113 Weekend 78,894 84,744 164,947 328,585
Total kWh Savings 260,817 282,583 544,298 1,087,698
Table 5-21 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: South Side Substation
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
South Side Substation, 4099921
Circuit
Heating Weekday 240,548 356,143 272,765 869,456 Weekend 97,080 143,845 110,063 350,988
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 240,548 356,143 272,765 869,456 Weekend 97,080 143,845 110,063 350,988
Total kWh Savings 337,628 499,988 382,828 1,220,444
South Side Substation, 4099922
Circuit
Heating Weekday 405,412 428,541 421,295 1,255,248 Weekend 156,298 163,924 159,831 480,052
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 405,412 428,541 421,295 1,255,248 Weekend 156,298 163,924 159,831 480,052
Total kWh Savings 561,710 592,465 581,125 1,735,301
South Side Substation, 4099923
Circuit
Heating Weekday 216,673 283,240 271,934 771,847 Weekend 74,990 101,306 98,467 274,763
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 216,673 283,240 271,934 771,847 Weekend 74,990 101,306 98,467 274,763
Total kWh Savings 291,663 384,546 370,400 1,046,609
South Side Substation-Total
Heating Weekday 862,634 1,067,924 965,993 2,896,551 Weekend 328,367 409,075 368,361 1,105,803
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0 Weekday 862,634 1,067,924 965,993 2,896,551
Indiana Michigan Power Company
Both Seasons Weekend 328,367 409,075 368,361 1,105,803
Total kWh Savings 1,191,001 1,476,999 1,334,354 4,002,354
Table 5-22 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: Spy Run Substation
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
Spy Run Substation, 4923321 Circuit
Heating Weekday 29,981 150,118 160,234 340,333 Weekend 13,336 61,678 65,549 140,564
Cooling Weekday 15,456 68,744 37,586 121,786 Weekend 6,064 27,393 15,079 48,536
Both Seasons
Weekday 45,438 218,862 197,820 462,119 Weekend 19,401 89,071 80,628 189,099
Total kWh Savings 64,838 307,933 278,447 651,218
Spy Run Substation, 4923322 Circuit
Heating Weekday 0 19,093 482,274 501,368 Weekend 0 7,777 198,855 206,632
Cooling Weekday 24,268 123,556 149,311 297,135 Weekend 9,721 48,581 59,613 117,914
Both Seasons
Weekday 24,268 142,650 631,585 798,503 Weekend 9,721 56,358 258,467 324,546
Total kWh Savings 33,989 199,008 890,052 1,123,049
Spy Run Substation-Total
Heating Weekday 29,981 169,211 642,508 841,700 Weekend 13,336 69,456 264,403 347,196
Cooling Weekday 39,725 192,301 186,896 418,921 Weekend 15,785 75,973 74,692 166,450
Both Seasons
Weekday 69,706 361,512 829,404 1,260,622 Weekend 29,121 145,429 339,095 513,646
Total kWh Savings 98,827 506,941 1,168,499 1,774,268
Table 5-23 Counterfactual PY2018 kWh Savings Had VVO Always Been On by Season, and Day of Week: State Street Substation
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
State Street Substation,
4928721 Circuit
Heating Weekday 58,766 60,307 58,733 177,806 Weekend 25,770 26,873 25,572 78,215
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0 Weekday 58,766 60,307 58,733 177,806
Indiana Michigan Power Company
Circuit ID Season Day of Week kWh Savings
Phase A Phase B Phase C Sum of Phases
Both Seasons Weekend 25,770 26,873 25,572 78,215
Total kWh Savings 84,536 87,179 84,305 256,021
State Street Substation,
4928722 Circuit
Heating Weekday 178,654 182,308 177,197 538,160 Weekend 79,141 81,899 77,688 238,727
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 178,654 182,308 177,197 538,160 Weekend 79,141 81,899 77,688 238,727
Total kWh Savings 257,795 264,207 254,885 776,887
State Street Substation,
4928723 Circuit
Heating Weekday 118,344 121,101 118,110 357,556 Weekend 52,032 53,716 51,315 157,063
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 118,344 121,101 118,110 357,556 Weekend 52,032 53,716 51,315 157,063
Total kWh Savings 170,377 174,817 169,425 514,619
State Street Substation-Total
Heating Weekday 355,765 363,716 354,040 1,073,521 Weekend 156,943 162,487 154,575 474,005
Cooling Weekday 0 0 0 0 Weekend 0 0 0 0
Both Seasons
Weekday 355,765 363,716 354,040 1,073,521 Weekend 156,943 162,487 154,575 474,005
Total kWh Savings 512,708 526,203 508,615 1,547,526
Table 5-24 Summary of Counterfactual PY2018 kWh Savings Has VVO Always Been On by Substation and Circuit
Substation Circuit ID
Annual kWh
Savings
East Side
4093121 376,454
4093122 1,025,138
4093123 1,004,340
4093124 1,006,874
4093125 941,379
4093126 853,592
Total 5,207,778
Elcona 4938121 159,413
4938122 645,484
Indiana Michigan Power Company
Substation Circuit ID
Annual kWh
Savings 4938123 1,052,740
Total 1,857,637
Grabill
4935221 0
4935222 0
4935223 0
Total 0
Hacienda
4933521 70,272
4933523 342,228
4933524 58,592
4933525 561,417
4933526 420,962
4933527 497,444
Total 1,950,915
Harper 4928821 484,728
4928822 586,072
Total 1,070,799
Lincoln
4051821 434,108
4051822 399,881
4051824 345,457
Total 1,179,446
Northland
4933421 227,416
4933422 208,676
4933423 216,527
4933424 223,370
4933425 222,260
4933426 221,808
Total 1,320,057
Osolo
4058021 1,106,335
4058022 560,488
4058023 617,233
4058024 673,503
4058025 409,150
4058026 131,380
Total 3,498,088
South Bend
4050321 361,118
4050322 356,808
4050323 369,772
Total 1,087,698
4099921 1,220,444
Indiana Michigan Power Company
Substation Circuit ID
Annual kWh
Savings
South Side
4099922 1,735,301
4099923 1,046,609
Total 4,002,354
Spy Run 4923321 651,218
4923322 1,123,049
Total 1,774,268
State Street
4928721 256,021
4928722 776,887
4928723 514,619
Total 1,547,526 Grand Total 24,496,566
Indiana Michigan Power Company
6. Peak Reduction This chapter presents the results of the analysis of demand reduction occurring during I&M 5CP hours. Demand reductions are presented Table 6-1, accounting for those circuits that were “on” during the events.
Table 6-1. kW Reduction during PY2018 I&M 5CP
Substation Circuit ID
5/29/2018 6/18/2018 7/10/2018 8/28/2018 9/4/2018 1:00 PM - 2:00 PM
2:00 PM - 3:00 PM
12:00 PM - 1:00 PM
3:00 PM - 4:00 PM
4:00 PM - 5:00 PM
East Side
4093121 49.10 0.00 49.75 16.50 36.94 4093122 171.06 0.00 141.46 47.47 135.65 4093123 187.62 0.00 137.42 47.20 148.68 4093124 209.89 0.00 107.10 107.93 250.40 4093125 182.40 0.00 114.59 113.42 219.19 4093126 152.78 0.00 65.45 73.42 181.73
Total 952.86 0.00 615.77 405.93 972.59
Elcona
4938121 19.35 0.00 0.00 0.00 0.00 4938122 80.06 0.00 0.00 0.00 0.00 4938123 166.28 0.00 0.00 0.00 0.00
Total 265.69 0.00 0.00 0.00 0.00
Grabill
4935221 0.00 0.00 0.00 0.00 0.00 4935222 0.00 0.00 0.00 0.00 0.00 4935223 0.00 0.00 0.00 0.00 0.00
Total 0.00 0.00 0.00 0.00 0.00
Hacienda
4933521 0.00 0.00 7.08 9.59 14.92 4933523 0.00 0.00 6.22 9.26 78.22 4933524 0.00 0.00 5.33 7.86 14.07 4933525 0.00 0.00 0.00 0.00 0.00 4933526 0.00 0.00 0.00 0.00 0.00 4933527 0.00 0.00 0.00 0.00 0.00
Total 0.00 0.00 18.62 26.71 107.22
Harper 4928821 0.00 0.00 0.00 0.00 0.00 4928822 0.00 0.00 0.00 0.00 0.00
Total 0.00 0.00 0.00 0.00 0.00
Lincoln
4051821 0.00 0.00 0.00 0.00 0.00 4051822 0.00 0.00 0.00 0.00 0.00 4051824 0.00 0.00 0.00 0.00 0.00
Total 0.00 0.00 0.00 0.00 0.00
Northland
4933421 0.00 0.00 0.00 0.00 0.00 4933422 0.00 0.00 0.00 0.00 0.00 4933423 0.00 0.00 0.00 0.00 0.00 4933424 0.00 0.00 0.00 0.00 0.00 4933425 0.00 0.00 0.00 0.00 0.00 4933426 0.00 0.00 0.00 0.00 0.00
Total 0.00 0.00 0.00 0.00 0.00
Osolo
4058021 0.00 0.00 0.00 92.41 199.37 4058022 0.00 0.00 0.00 66.16 114.91 4058023 0.00 0.00 0.00 93.51 127.55 4058024 0.00 0.00 0.00 0.00 93.27 4058025 0.00 0.00 0.00 0.00 67.32 4058026 0.00 0.00 0.00 0.00 51.02
Indiana Michigan Power Company
Substation Circuit ID
5/29/2018 6/18/2018 7/10/2018 8/28/2018 9/4/2018 1:00 PM - 2:00 PM
2:00 PM - 3:00 PM
12:00 PM - 1:00 PM
3:00 PM - 4:00 PM
4:00 PM - 5:00 PM
Total 0.00 0.00 0.00 252.09 653.45
South Bend
4050321 0.00 0.00 0.00 0.00 0.00 4050322 0.00 0.00 0.00 0.00 0.00 4050323 0.00 0.00 0.00 0.00 0.00
Total 0.00 0.00 0.00 0.00 0.00
South Side
4099921 0.00 0.00 0.00 0.00 0.00 4099922 0.00 0.00 0.00 0.00 0.00 4099923 0.00 0.00 0.00 0.00 0.00
Total 0.00 0.00 0.00 0.00 0.00
Spy Run 4923321 89.24 93.69 0.00 0.00 0.00 4923322 65.02 206.37 0.00 0.00 0.00
Total 154.26 300.06 0.00 0.00 0.00
State Street
4928721 0.00 0.00 0.00 0.00 0.00 4928722 0.00 0.00 0.00 0.00 0.00 4928723 0.00 0.00 0.00 0.00 0.00
Total 0.00 0.00 0.00 0.00 0.00 Grand Total 1,372.80 300.06 634.39 684.73 1,733.26
The summarized results for each during I&M 5CP event are presented in Table 6-2 below.
Table 6-2. Summary of kW Reductions during I&M 5CP Events
Date Hour Start Hour End kW Reduction
5/29/2018 1,372.80 1,372.80 1,372.80 6/18/2018 300.06 300.06 300.06 7/10/2018 634.39 634.39 634.39 8/28/2018 684.73 684.73 684.73 9/4/2018 1,733.26 1,733.26 1,733.26
Maximum Peak kW Reduction 1,733.26 Average Peak kW Reduction 945.05
Indiana Michigan Power Company
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