Click on the term years above to view the associated definitions.
Participant Definitions for 2022-2024
Program/Core Initiative |
Participant Definition |
A - Residential |
A1 - Residential New Buildings |
A1a - Residential New Homes & Renovations |
Dwelling unit with any measure |
A2 - Residential Existing Buildings |
A2a – Residential Coordinated Delivery |
Dwelling unit with any measure |
A2b - Residential Conservation Services (RCS) |
[no participants; not a separate core initiative] |
A2c - Residential Retail |
Number of widgets
Assumption for upstream : 1 measure per participant, except 2 measures for smartstrips and therostats) |
A2d - Residential Behavior |
Unique account number |
A2e – Residential Active Demand Reduction |
Unique account number |
B – Income Eligible |
B1 – Income Eligible Existing Buildings |
B1a – Income Eligible Coordinated Delivery |
Dwelling unit with any measure |
B1b – Income Eligible Active Demand Reduction |
Unique account number |
C - Commercial & Industrial |
C1 – C&I New Buildings |
C1a - C&I New Buildings & Major Renovations |
Unique account number or equivalent |
C2 – C&I Existing Buildings |
C2a - C&I Existing Building Retrofit |
Unique account number |
C2b - C&I New & Replacement Equipment |
Unique account number |
C2c - C&I Active Demand Reduction |
Unique account number |
Participant Definitions for 2019-2021
Program/Core Initiative |
Participant Definition |
A - Residential |
A1 - Residential New Buildings |
A1a - Residential New Homes & Renovations |
Dwelling unit with any measure |
A2 - Residential Existing Buildings |
A2a – Residential Coordinated Delivery |
Dwelling unit with any measure |
A2b - Residential Conservation Services (RCS) |
[no participants; not a separate core initiative] |
A2c - Residential Retail |
Unique account number when available, assumption for upstream (1 measure per participant, except for lighting, per the chart below) |
A2d - Residential Behavior |
Unique account number |
A2e – Residential Active Demand Reduction |
Unique account number |
B – Income Eligible |
B1 – Income Eligible Existing Buildings |
B1a – Income Eligible Coordinated Delivery |
Dwelling unit with any measure |
B1b – Income Eligible Active Demand Reduction |
Unique account number |
C - Commercial & Industrial |
C1 – C&I New Buildings |
C1a - C&I New Buildings & Major Renovations |
Unique account number or equivalent |
C2 – C&I Existing Buildings |
C2a - C&I Existing Building Retrofit |
Unique account number |
C2b - C&I New & Replacement Equipment |
Unique account number |
C2c - C&I Active Demand Reduction |
Unique account number |
Residential Upstream Lighting |
Widget per Participant |
LED Fixture |
1 |
LED Bulb |
4 |
LED Bulb (Specialty) |
3 |
LED Bulb (Hard to Reach) |
2 |
LED Bulb (School Fundraiser) |
4 |
LED Reflector |
3 |
LED Bulb (Food Pantry) |
2 |
Linear LED |
2 |
Participant Definitions for 2016-2018
Program/Core Initiative |
Participant Definition |
A - Residential |
A1a - Residential New Construction |
Dwelling unit |
A1b - Residential Multi-Family Retrofit |
Dwelling unit with any measure installed |
A1c - Residential Home Energy Services - Measures |
Unique account number with at least one major measure installed |
A1d - Residential Home Energy Services - RCS |
[no participants; not a separate core initiative] |
A1e - Residential Behavior/Feedback Program |
Unique account number |
A2a - Residential Heating & Cooling Equipment |
Unique account number |
A2b - Residential Consumer Products |
Number of widgets; unique account number when available, assumption for upstream (2 measures per participant for Tier 1 smart strips, 1 measure per participant for all other measures). |
A2c - Residential Lighting |
Number of widgets, see chart below |
B - Low-Income |
B1a - Low-Income Single Family Retrofit |
Unique account number |
B1b - Low-Income Multi-Family Retrofit |
Dwelling unit |
C - Commercial & Industrial |
C1a - C&I New Buildings & Major Renovations |
Unique account number or equivalent |
C1b - C&I Initial Purchase & End of Useful Life |
Unique account number; for upstream, unique installation address |
C2a - C&I Existing Building Retrofit |
Unique account number |
C2b - C&I Small Business |
Unique account number |
C2c - C&I Multifamily Retrofit |
Unique account number |
C2d - C&I Upstream Lighting |
Unique installation address |
Residential Lighting Assumptions
2016-2018 Residential Lighting |
Widget per Participant |
CFL Bulb |
4 |
CFL Bulb (EISA Exempt) |
2 |
CFL Bulb (Hard to Reach) |
4 |
CFL Bulb (School Fundraiser) |
4 |
Fixture |
1 |
LED Fixture |
1 |
LED Bulb |
8 |
LED Bulb (EISA Exempt) |
4 |
LED Bulb (Hard to Reach) |
8 |
LED Bulb (School Fundraiser) |
8 |
LED Reflectors |
4 |
Participant Definitions for 2013-2015
Program/Core Initiative |
Electric Participant Definition |
Gas Participant Definition |
Residential |
Residential New Construction |
Unique Identifier |
Unique Identifier |
Residential Multifamily Retrofit |
Dwelling Unit |
Dwelling Unit |
Residential Home Energy Services |
Unique Account Number |
Unique Account Number |
Residential Behavior/Feedback |
Unique Account Number (Activated Customer for OPower), (activated and passive customers for WMECO) |
Unique Account Number (Activated Customer for OPower) |
Residential Heating & Water Heating |
n/a |
Unique Account Number |
Residential Heating & Cooling Equipment |
Unique Account Number |
n/a |
Residential Lighting |
Number of widgets, see chart below |
n/a |
Residential Consumer Products |
Unique Account Number + assumption for upstream (e.g., one-to-one for TVs) |
n/a |
Low-Income |
Low-Income New Construction |
Unique Identifier |
n/a |
Low-Income Single Family Retrofit |
Unique Account Number |
Unique Account Number |
Low-Income Multifamily Retrofit |
Dwelling Unit |
Dwelling Unit |
Commercial & Industrial |
C&I New Construction |
See C&I Definition below, with examples |
See C&I Definition below, with examples |
C&I Retrofit |
See C&I Definition below, with examples |
See C&I Definition below, with examples |
C&I Direct Install |
See C&I Definition below, with examples |
See C&I Definition below, with examples |
Residential Lighting Assumptions
2013-2015 Residential Lighting |
Widget per Participant |
Screw-in Bulbs |
8 |
Screw-in Bulbs (Hard to Reach) |
4 |
Screw-in Bulbs (Specialty) |
8 |
LED Bulb |
1 |
Indoor Fixture (Inc. Torchieres) |
2 |
Outdoor Fixture |
2 |
LED Fixtures |
1 |
Screw-in Bulbs (School Fundraiser) |
4 |
C&I Definition
• By one representative number (account number, location ID, or meter, as determined by each PA) for each location/campus, by year, by program.
Example: Company A has 5 buildings with 5 meters and 3 customer account numbers in Location X. Company A installs measures related to several end uses in the retrofit program in January 2013. Company A then installs additional retrofit measures in April 2013. PA would count ONE participant in C&I Retrofit in 2013.
* If Company A were to build another building at Location X in 2013 and measures were installed with New Construction dollars, ONE additional participant would be counted in C&I New Construction.
* If Company A were to install retrofit measures in Location Y in 2013, one additional participant would be counted.
* If Company A were to install additional retrofit measures in Location X in 2014, one participant would be counted for 2014.
• For electric upstream lighting initiative, by unique installation address or representative account number IN ADDITION to any participant already counted in New Construction
Example: Company A installs New Construction measures in 2013 (other than upstream lighting-related), one participant is counted. If Company A also participates in Upstream Lighting in 2013, a SECOND participant is counted.
This method will apply generally to additional upstream initiatives unless otherwise discussed.
• For street lighting, by actual (not representative) account number.
Participant Definitions for 2010-2012
Participant definitions varied by Program Administrator in 2010-2012. For more detailed information, please see the 2010, 2011, and 2012 energy efficiency annual reports filed by each Program Administrator with the Department of Public Utilities.
Electric Program |
Participant Definition (varied by PA) |
Residential |
Residential New Construction and Major Renovation |
Unique electric account or newly constructed dwelling unit |
Residential Cooling and Heating Equipment |
Unique electric account or number of measures installed |
Residential Mass Save/ Weatherization |
Unique electric account or residential audit |
Residential Multi-Family Retrofit |
Unique electric account or dwelling unit |
Low-Income |
Low-Income Residential New Construction |
Unique electric account or newly constructed dwelling unit |
Low-Income Retrofit |
Unique electric account or multi-family dwelling unit |
Commercial & Industrial |
C&I New Construction and Major Renovation |
Individual project, representative account number for each location, unique billing account, or individual customer; plus unique installation address or account number for upstream lighting |
C&I Large Retrofit |
Individual project, representative account number for each location, or unique billing account |
C&I Small Retrofit |
Individual project, representative number (account, location ID, or meter) for each location, or unique billing account |
Gas Program |
Participant Definition (varied by PA) |
Residential |
Residential New Construction and Major Renovation |
Unique gas account, unique location number, or unit completed |
Residential Heating and Water Heating |
Number of measures installed |
Residential Mass Save/ Weatherization |
Weatherization: number of customers who installed measures, number of insulation and air sealing jobs completed, or unique accounts with insulation and
air sealing jobs completed. Mass Save: number of audits completed, unique gas account, unique location completing a home energy assessment, or number of instant savings measures installed. |
Residential Multi-Family Retrofit |
Dwelling unit or number of measures installed |
Low-Income |
Low-Income Retrofit |
Unique gas account, unique location number, single home or housing unit, number of measures installed, or dwelling units |
Commercial & Industrial |
C&I New Construction and Major Renovation |
Individual customers, individual projects, or unique billing account; number of rebates for prescriptive measures |
C&I Retrofit |
Individual customers, individual projects, or unique billing account; number of rebates for prescriptive measures |
C&I Direct Install |
Unique customer, unique location ID associated with project, number of measures installed, or unique billing account |