MARCH 8, 2012 | HOLYOKE, MARevised March 12, 2012

Transitional Price ResponsiveDemand Program (TPRD)

Participating in PRD during the Transition Period

Lemuel GonzalezOPERATIONS SOLUTIONS MANAGER

CUSTOMER SERVICE & TRAINING

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Training Objectives

• Purpose of this training is to introduce the tools and reports that will be used in the Transitional Price Responsive Demand Program starting on June 1, 2012

• While we will cover some of the concepts or rules as they pertain to the tools used in participating in the program, most discussion on the actual tariff rules are outside the scope for this training

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Agenda

• Demand Reduction Threshold Price

• Submitting Offers

• Monitoring Real-Time Prices

• Questions

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DEMAND REDUCTION THRESHOLD PRICE (DRTP)Retrieving DRTPs from the ISO Website

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Demand Reduction Threshold Price (DRTP)

• ISO will determine and publish a system-wide Demand Reduction Threshold Price (DRTP) once per month for the subsequent month as defined in MR 1, Appendix E– Under the Transitional Price Response Demand (TPRD) Program, the

DRTP is posted to the ISO New England website approximately fifteen days before the start of the following month

– The DRTP applies only to the next month and will not change during the month

• Demand Reduction Offers must be at or above the DRTP, else the offer is rejected from consideration by eMarket– If the date range of an offer spans both the current and next month,

then the Offer Price must be at or above the higher DRTP

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Retrieving DRTPs from ISO Website

• Navigate to Markets > Hourly Data > Historical Hourly Data– http://www.iso-ne.com/markets/hst_rpts/hstRpts.do?category=Hourly

• When released in May, a Monthly Data option will be available– First set of reports for the June 2012 trading month will be available no

later than May 15, 2012 as required by the tariff

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DRTP ISO-NE Web Report Mockups

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HTrading Month

Reference Month

Fuel Index Trading Month

Fuel Index Reference

Month

Relevant Sample Range -

Low

Relevant Sample Range -

High

Coefficient A * 10000

Coefficient B

Coefficient C

R Square

Demand Reduction Threshold

Price

H Date Date $/MMBTU $/MMBTU $/MWh $/MWh . . . % $/MWh

. . . (2 decimal

places) (2 decimal

places) (integer) (integer)

(5 decimal places)

(5 decimal places)

(5 decimal places)

(1 decimal place)

(integer)

H Trading Month Reference Month Offer MW Offer Price

H Date Date MW $/MWh

. . . (integer) (2 decimal places)

Headings for the DRTP summary report (see Appendix for field descriptions)

Headings for the DRTP detail report

SUBMITTING OFFERSIntroduction to Offer Requirements and eMarket Functionality

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Participating in TPRD

• Real-Time Demand Response (RTDR) Assets associated with a Real-Time Demand Response Resource are eligible to participate in TPRD

• Qualified RTDR Resources do not need a Capacity Supply Obligation (CSO) for an asset associated with that resource to participate in TPRD

• RTDR Assets must satisfy TPRD requirements (e.g., Retail Delivery Point Metering, minimum size of 100 kW demand reduction) – We’ve talked about these before but we plan to cover them in more

detail when we discuss Registration at the April DRWG

Market Timelines Real-Time Energy Market

Day-Ahead Energy Market

―16

:00

DA Energy Market results

published

Participants or DDEs

submit initial meter reading

corrections

07:0

0―

18:0

0―

Provide demand reductions

Assets provide initial meter readings in real-time through CFE/RTU

―12

:00

DA Energy Market offer

and bid period closes

NON-DR HOLIDAY WEEKDAYS OPERATING DAY +1

OPERATING DAY +2OPERATING DAY -1

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Day-Ahead Demand Reduction Offers

• Demand Reduction Offers must be submitted into eMarket by the deadlines established for the Day-Ahead Energy Market (at least by noon on the day prior to the Operating Day)

• Demand Reduction Offers consist of a single $/MWh price (less than or equal to $1000/MWh) and a single demand reduction amount (in MW to the nearest 0.001 MW)

• Offers include a Minimum Interruption Duration defined in whole hourly increments between 1 and 4 hours (this is the minimum amount of time for which the energy consumption of the asset must be interrupted if scheduled)– Default in the user interface is 1 hour, must be specified in the XML

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Day-Ahead Demand Reduction Offers (cont.)

• Offers may also include a Curtailment Initiation Price– The Curtailment Initiation Price is a fixed cost that must be recovered

per interruption/start-up– Default in the user interface is $0/MW, must be specified in the XML

• Both the Offer Price and the offer cost, which incorporates the Curtailment Initiation Price, must be less than or equal to the maximum Offer Price of $1,000/MWh

• The offer cost is equal to the Offer Price + [Curtailment Initiation Price/(Minimum Interruption Duration x Offer MW)]

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eMarket Offer Characteristics

• Required fields in eMarket:– Asset Name

• Asset ID is optional– Start Day– Stop Day– Offer MW

• To three decimal places between 0.100 and MIC

– Offer Price ($/MW)• To two decimal places

between DRTP and $1,000– Curtailment Initiation Price

($/start) • To two decimal places

– Minimum Interruption Duration

• Whole integers from 1 to 4

• For more technical details on eMarket, please reference the eMarket Data Exchange Specification (latest is v. 6.2) under Support > Data Retrieval > Upload/Download File Formats at: – http://www.iso-ne.com/

support/tech/file_formats/up_dwn_frmts/eMarket%20Data%20Exchange%20Specification%20v6.2.pdf

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Offer Quantity Requirements

• Offer MW must be greater than or equal to 0.1 MW and less than or equal to the lowest Maximum Interruptible Capacity (MIC) of the asset for the dates spanned by the offer at the time it is submitted– Because the MIC of an asset can change after an offer has been

submitted and accepted, the market clearing software will use the lesser of the submitted Offer MW and the MIC effective for the Operating Day

• Offer MWs can be defined to the third decimal place (i.e., to the kW) provided it satisfies the requirements noted above

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Offer Start and Stop Dates

• Start Day must be a date in the future (earliest possible would be the next day, provided it is prior to noon)

• Stop Day must be greater than or equal to the Start Day and must fall in a month where the DRTP is defined– Since the DRTP of a month will be defined and published around the

15th of a month for the next month, Demand Reduction Offers with Stop Days into that next month can be submitted only after the DRTP is published

• Though the Start and Stop Days may include weekends and holidays, Demand Reduction Offers are valid during hours ending 0800 through 1800 on non-Demand Response Holiday weekdays

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Offer Start and Stop Dates (cont.)

• If a Demand Reduction Offer is submitted for a range of days and a new offer is submitted for a day or a range of days within the existing offer’s date range, the newly entered offer, having met all other validations, will overwrite the previous offer data for only those day(s) specified in the new offer

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Other Offer Considerations

• Demand Reduction Offers are accepted if assets meet the TPRD participation requirements for the effective period of the offer

• An offer can meet the requirements when submitted (after DRTP is published but communication model is finalized for subsequent month), but other changes can make the offer ineligible to participate in TPRD; for example:– The asset is unmapped from its resource– MIC changes to below 0.100 MW– Meter changes away from the Retail Delivery Point

• A participant might be unable to submit offers for an asset for the current month but be eligible to submit offers for a future month

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Access Rights in the Customer and Asset Management System (CAMS)

• Your Company’s Security Administrator can add the following roles, as applicable:– eMarket LRP Read/Write (no change in the app group name)– eMarket LRP Read Only (no change in the app group name)

• Staff at your companies who already have eMarket access will be unaffected by the new eMarket release and will not need to change application roles to continue to bid or review cleared schedules in eMarket

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Default view when accessing eMarket which is listed as Bids & Offers(Registered Users) under the SMD Applications Home Page.

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To access the area of eMarket where Demand Response Offers are submitted and results retrieved, select the Demand tab from the top navigation area.

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Note a Stop Day in the year 2020 is not allowed; that said, if an offer is submitted for a subsequent month, and it shares the same characteristics as the existing offer, then the Stop Day of the existing record is extended.

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Select the month and Real-Time Demand Response Asset for which you’ll be entering or reviewing Demand Response Offers.

Note: When a Start and Stop Day spans multiple months, the highest DRTP for those months is displayed.

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Select New to enter a new Demand Response Offer.

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Select Update to submit a new Demand Response Offer or to revise an existing offer that you might have modified. Update will submit all changes pending on the screen (i.e., you can modify an existing offer and submit a new one at the same time).

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Toggle the arrow at the bottom to see any error messages or confirmations (when successful).

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Sampling of Validation Messages

• Demand Response Threshold Price (DRTP) has not been published for month xxx. Offer is not accepted.

• Demand Response Threshold Price (DRTP) is not published for the entire period 27-FEB-2012 to 31-MAR-2012. Offer is not accepted

• Minimum Interruption Duration [5] must not exceed [4] and must be greater than 0.

• Offer Price [50] must be equal or greater than Demand Response Threshold Price [80].

• The calculated maximum Offer Price [1001] must be lower than or equal to [1000]

• Offer MW [.2] must be equal or lower than Maximum Interruptible Capacity [.1].

• Start Day must be in the future

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demand#getloadresponseofferresponse.xml

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demand#getloadresponseresultresponse.xml

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MONITORING REAL-TIME PRICES

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Real-Time Demand Reductions When Day-Ahead Offer is Accepted• Real-Time demand reduction amounts are limited to 200% of

the associated Demand Reduction Offer amount– Other restrictions apply to accepted Demand Reduction Offers when

the provisional Real-Time LMP is less than the Demand Reduction Threshold Price (see Section III.E.9.2.2)

• Demand reduction amounts can be negative if a customer consumes more than their adjusted baseline, adjusted as applicable per Section III.8, rather than reducing their consumption

• Assets intending to reduce ≥ 5 MW of load must contact the system operator between 15 to 60 minutes prior to initiating the reduction

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Real-Time Demand Reductions When Day-Ahead Offer is Not Accepted• Demand Reduction Offers not scheduled day-ahead are

eligible for payment in real-time if the Offer Price (not including the Curtailment Initiation Price) is ≤ the provisional hourly Real-Time LMP published in the Operating Day for the Load Zone in which the asset is located– Asset will not be charged if a demand reduction offer does not clear

day-ahead and the asset produces a negative Real-Time demand reduction amount

– Real-Time demand reduction amounts are limited to 200% of the associated Demand Reduction Offer amount

• Assets intending to reduce ≥ 5 MW of load must contact the system operator between 15 to 60 minutes prior to initiating the reduction

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Monitoring Provisional Real-Time LMPs (hourly)

• Navigate to Markets > Hourly Data and select Current Hourly Marginal Price Data– http://www.iso-ne.com/markets/hst_rpts/hstRpts.do?category=Hourly

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Monitoring Provisional Real-Time LMPs (5-min)

• Lead Market Participants may elect to monitor Five-minute provisional LMPs; however it is the hourly provisional Real-Time LMPs that are used to establish eligibility

– Hourly values are the time-weighted average of the five-minute data where the timestamp differences between the LMP calculations are considered (these timestamps are not based on the publishing to the web but rather when the LMP calculations are performed at the ISO)

– This method serves to account for calculation delays (not web posting delays), system outages, and missing intervals

– In practice a straight average of the 5-minute values will be close to the hourly roll-up but not exact

• Navigate to Markets > Five-Minute Data and select Current Five-Minute Marginal Prices

– http://www.iso-ne.com/markets/5min_data/fiveMinLMP.do

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Additional Resources

• See the ISO New England’s Web Services API documentation for additional options (preferred method for data scraping)– https://webservices.iso-ne.com/docs/v1.0/index.html (note the

rest.hourlylmp.rt.prelim.current service)– Registration is required for web services through ISO Express

(http://isoexpress.iso-ne.com)

• May also refer to the Acquiring Operational Data document for more information on the “current/rolling three hours” and “latest” hourly LMP CSV downloads (note the Hourly LMP Data for Download section)– http://www.iso-ne.com/support/tech/acqop_data/

acquiring_ops_data.pdf

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Review

• Demand Reduction Threshold Price

• Submitting Offers

• Monitoring Real-Time Prices

• Questions

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APPENDIX

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DRTP Detail Report Column Descriptions

Column Heading DescriptionTrading Month The calendar month during which the DRTP is effectiveReference Month The calendar month from which the smoothed energy supply offer

curve is developedFuel Index Trading Month The fuel index price for the trading month that is used to scale the

smoothed energy supply offer curveFuel Index Reference Month The fuel index price for the reference month that is used to scale the

smoothed energy supply offer curveRelevant Sample Range - Low The lower bound of the smoothed energy supply offer curveRelevant Sample Range - High The upper bound of the smoothed energy supply offer curveCoefficient A The output of the regression used to estimate the smoothed energy

supply offer curveCoefficient B The output of the regression used to estimate the smoothed energy

supply offer curveCoefficient C The output of the regression used to estimate the smoothed energy

supply offer curveR Square A measure of fit for the regression used to estimate the smoothed

energy supply offer curveDemand Reduction Threshold Price

The price where the elasticity of the smoothed energy supply offer curve is closest to 1

Deleting an offer through the user interface

• Deleting an offer entirely (provided the Start and Stop Days are in the future) is straightforward– Select the row for the offer you want to delete and press Delete

• There are a couple of ways to delete portions of an existing offer (certain days within the range of an existing offer)– First option (Option A), and the preferred method, is to change the

dates on the existing record to the days you want to delete, and then press the Delete button (screenshots of the steps follow this slide)

– Second option (Option B) is to change the offer characteristics for those days and then delete the new record (see screenshots)

• In the coming examples, we’ll look at an offer that spans from March 21 to March 31 and delete March 26 & 27 from it

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Select the record that includes the days you want to delete. In this example, we would select the last record.

Option A: Select existing offer which includes the days to be deleted, revise Stop and Start Days to the days to be deleted and select Delete

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Revise the Start and Stop Day to the days that you want to delete from the existing offer, keeping in mind that the Stop Day is inclusive.While the record is still active select Delete to remove it (note that if a different record is active, that record would be deleted). You will be prompted with a message that there may be unsaved data. Press OK to continue (note that other changes pending in the screen will be lost).

Option A: Select existing offer which includes the days to be deleted, revise Stop and Start Days to the days to be deleted and select Delete

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Create a new record with the dates that you are looking to delete. Note that these days are in between an existing offer (the record immediately preceding it). Make sure that at least one parameter of the offer is different than the standing offer and select Update.

Option B: Insert new record with days you want to delete and remove that new record

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Note that the previous offer (which had gone from March 21 to March 31) is now split with the March 26 and 27 record that we are looking to delete inserted in between them. You can now select that March 26 to 27 offer and select Delete and the record will be deleted leaving the desired gap for those two days.

Option B: Insert new record with days you want to delete and remove that new record

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Option A & B: End Result of Deletion

Regardless of whether you use Option A or B, the end result will be the same. Two new records are created that split the previous offer into two with a gap for the two Operating Days you wanted to delete.

Revision History

• Note that this presentation has been revised from what was provided at the March DRWG– Slide 12 was corrected (08:00 was changed to 07:00 on the start of

the program hours on non-DR weekdays)– Slide 13 was corrected on the precision of the offers (nearest 0.001

MW)– Slide 24 was revised to explain which DRTP is displayed when an offer

spans more than one month (i.e., it shows the highest)– Slide 37 was revised to add a note about additional restrictions– Slide 41 was expanded in response to a question, clarifying that hourly

values are the time-weighted average of the five-minute values– Appendix expanded in response to questions to show examples of

how to delete a range of days within an existing offer

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