grocersmart™ 4.0 rtf subcommittee approval of adherence to guidelines march 10, 2011
TRANSCRIPT
GrocerSmart™ 4.0
RTF Subcommittee Approval of Adherence to Guidelines
March 10, 2011
RTF Approval Schedule
March 10 Review PECI’s approach to RTF guideline adherence
March 17 Review updates to documentation in preparation for full RTF presentation
April 5 Presentation to full RTF – Validation, Calibration, and Documentation of GrocerSmart 4.0
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Today we will:
• Discuss PECI’s validation of energy savings calculated by GrocerSmart 4
• Review PECI’s documentation format and approach to transparency
Validation
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Testing Pilot
Roll O
ut
In MarketChanging Code Changing Code
Validating Results
Validating Results
Continuous Improvement
Time
Operational Parameters Check
Acceptable Ranges of Energy Savings
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Operational Parameters
1. Building Level
2. System Level
3. Component Level
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Operational Parameters
1. Building Level
2. System Level
3. Component Level
Validation Question:
Is the modeled building functioning in an expected way?
Sources: Parameter:
Grocery Energy Use Index (EUI)
CBSA – Northwest Commercial Stock Assessment
CBECS – Commercial Building End Use Survey
Study kWh EUI Gas EUI
CBSA 42.5 kWh/sft .53 Therm/sft
CBECS 55.4 kWh/sft .32 Therm/sft
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Operational Parameters
1. Building Level
2. System Level
3. Component Level
Validation Question:
Are building systems operating at expected levels as modeled?
Sources: Parameters:
Normalized energy use
Allocation
CBECS – Commercial Building End Use Survey
NC Modeling - 8 stores
Source CBECS NC % of building
Lighting kWh/sft
11
HVAC kWh/ton
12
Refrig kWh/mbh
36
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Operational Parameters
1. Building Level
2. System Level
3. Component Level
Validation Question:
Are components operating with expected energy performance?
Sources: Parameters:
Energy use/unit
MAX energy use per component
Metered DataHistoric Program DataNC ModelingAHRIOthers
Energy Use/Unit
Source Metered Data Program Data NC
Fixtures
Compressors
Condensers
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Testing Pilot
Roll O
ut
In MarketChanging Code Changing Code
Validating Results
Validating Results
Continuous Improvement
Time
Operational Parameters
Acceptable Ranges
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Acceptable Ranges
Case Motors: Shaded Pole Motors to ECMs
GrocerSmart™ Result: 190
Savings
Annual kWh per
unitAnnual Therm
per unit
MeasureClimate
Zone VintageRealization
% High Low High Low Unit Dev
Cases: Shaded pole motor to ECM 1 1 130% 200 150 na na len 10%
Cases: Shaded pole motor to ECM
Cases: Shaded pole motor to ECM
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Acceptable Ranges
Case Motors: Shaded Pole Motors to ECMs
GrocerSmart™ Result: 300
QuickNumber: 190
Used at point of customer contact to inform EE investment.
Audit is processed by engineering team to determine correct savings and improve GS4.
Savings
Annual kWh per
unitAnnual Therm
per unit
MeasureClimate
Zone VintageRealization
% High Low High Low Unit Dev
Cases: Shaded pole motor to ECM 1 1 130% 200 150 na na len 10%
Calibration
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Calibration
Calibration strategy•What will be adjusted in template•What data will be used
•Surveys•Utility-supplied data•M&V data•Studies
Documentation
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Documentation
BDL Documentation•Template Code: Modeling code that is not dependant on audit information•Audit Object Code: Modeling code that is dependant on audit information •Measure Code: Changes made to baseline modeling code to simulate measures