Energy Efficiency Board
Evaluation Reports and Studies
As required by statutory mandates, regulatory orders, and policy directives, the Energy Efficiency Board conducts evaluation studies and market research to ensure that the energy efficiency programs supported by the Connecticut Energy Efficiency Fund are cost effective and achieve optimal levels of energy savings. Below please find final and draft versions of the EEB evaluation reports and studies, along with related documents such as project descriptions, stakeholder comments and supplementary materials. Documents are organized in reverse chronological order, with the newest documents listed first.
The Energy Efficiency Fund also participates in joint research and evaluation projects undertaken by the Northeast Energy Efficiency Partnership (NEEP) Evaluation, Measurement and Verification Forum. Information on these projects may be found here. For information concerning the ongoing activities of the EEB Evaluation Committee, including monthly meeting documents, multi-year plans, reports to the legislature, and the Roadmap under which it operates, please visit the the Evaluation Committee's page here.
Chronological List of Projects
| Report or document | Year | Project Description/ Scope | Document[s |
|---|---|---|---|
| [R1983] Gas Weatherization PSD | 2022 |
Kickoff Presentation Draft Report and Memo |
|
| [R2029] Single-Family Weatherization Assessment and Update | 2022 | Kickoff Presentation | |
| [C2117] RCx Persistence Study | 2022 | Kickoff Presentation | |
|
[C1902a] ECB NTG and Baseline and Upstream Non-Lighting NTG Study [C1902b] ECB and Baseline Code Compliance |
2021 |
C1902a Draft Review | C1902b Draft Review Eversource Comments RE C1902b Draft Review | Eversource Memo RE 1902b | Eversource Comments RE C1902a Draft Review Avangrid Comments RE C1902b | Avangrid Additional Comment RE C1902a |
|
| [R1968] RNC Baseline and Code Compliance | 2021 | ||
| [R2015] Low Load Electric Residential New Construction | 2021 | Stakeholder Briefing Presentation | |
| [X1931-3] Compressed Air Systems Review | 2021 | ||
| [X1931-8] Commercial Advanced Thermostats Review | 2021 |
Eversource Comments RE Draft Memo
|
|
| [X1931-5] Commercial Refrigeration Efficiency Update Study | 2021 |
Eversource Comments RE Draft Report |
|
| [X1931-4] Advanced Lighting Controls Review for PSD | 2021 |
Utility Comments RE Phase 1 Results Eversource Comments RE Phase 2 Review Draft Avangrid Comments RE Phase 2 Review Draft |
|
| [X2001] Measure Life/EUL Update | 2021 |
Preliminary Results Presentation |
|
| [X1931-1] ISP Boilers and Furnaces | 2021 | ||
| [X1931-6] Hours of Use Documentation | 2021 | ||
| [X1931-7] Degree Days Update RNC | 2021 |
Final Presentation |
|
| [X1931-2] Coincidence Factor and Commercial Landscape Research | 2021 | ||
| [X2022] Education and Workforce Development | 2021 |
Stakeholder Comments Response to Stakeholder Comments
|
|
| [X1942] Non-Energy Impacts | 2021 |
Eversource Comments RE Review Draft (1942a) |
|
| [R2120] Appliance Recycling | 2021 | ||
| [C2014]: C&I Lighting Saturation and Remaining Potential | 2021 |
Technical Consultant Comments RE: Review Draft Final Report and Memo |
|
| [C1932] Demand Response EM&V Support | 2020 |
Eversource Comments RE Review Draft Technical Consultant Comments RE Review Draft Avangrid Comments RE Review Draft | Additional Avangrid Comments |
|
| [X1931] PSD Review | 2020 |
New Measures Kick-Off Presentation Responses to Stakeholder Comments Batch 1 & 2 Responses to Stakeholders Comments Batch 3 |
|
| [C1906] SEM Design and Evaluation | 2020 | ||
| [C1901] C&I Sector-Wide Process Evaluation | 2020 | ||
| [R2023] RASS Enhancement | 2020 | ||
|
[R1965] Heat Pump and Heat Pump Water Heater Baseline and Potential Assessment [R2027] Reliability |
2019 |
Eversource Comments RE Draft Report |
|
| [R1982] Residential HVAC/DHW Performance Potential Assessment | 2020 | ||
| [R1959] Single-Family Additions & Renovations Potential Analysis | 2019 | ||
| [R1973] Retail Non-Lighting | 2020 |
PSD Memo Updated to Include Gas Savings Retail Non-Lighting PSD and Program Recs |
|
| [X1939] Early Retirement | 2020 |
G. Lawrence Comments RE Phase 1 Best Practices |
|
| [X1941] Multifamily Impact Evaluation | 2019 |
Draft Report |
|
| [C1635] Energy Opportunities Impact Evaluation | 2020 | ||
| [C1634] Energy Conscious Blueprint Impact Evaluation | 2020 |
Evaluation Report Final Markup P Mosenthal Comments on Review Draft Eversource Comments on Review Draft |
|
| [R1963] Short-term Lighting Study | 2019 |
R1963b Final Presentation SCS Analystics R1963b Public Review Draft Report R1963b Consultant Comments (Craigo-Snell) R1963b EEB Consultant Comments |
|
| [R1617] CT Ductless Heat Pump Market Characterization Study | 2019 |
Eversource Comments on Draft Report (Memo) Eversource Comments on Draft Report (Embedded Comments) UIL Comments on Draft Report (Memo) EEB Residential Consultant Comments on Draft Report (Memo) EEB Residential Consultant Comments on Draft Report (Embedded Comments) |
|
| [R1705-R1609] Multi-Family Baseline and Weatherization Opportunity Study | 2018 | ||
| [R1706] Residential Appliance Saturation Survey combined with [R1616-R1708] Residential Lighting Impact Saturation Study | 2018 |
RASS Satabase User Guide Appendix G (updated 01 Oct 2020) Eversource Comments on Draft Report (Memo) Eversource Comments on Draft Report (Embedded Comments) EEB Residential Consultant Comments on Draft Report (Memo) EEB Residential Consultant Comments on Draft Report (Embedded Comments) |
|
| [R1603] HES and HES-IE Impact Evaluation | 2018 |
Eversource Comments on Draft Report (Memo) Eversource Comments on Draft Report (Embedded Comments) UiL Comments on Draft Report (Memo) UIL Comments on Draft Report (Embedded Comments) EEB Residential Consultant Comments on Draft Report (Memo) EEB Residential Consultant Comments on Draft Report (Embedded Comments) |
|
| [R1709] CT Non-Energy Impacts Literature Review | 2018 | ||
| [R1707] Net-To-Gross Study for CT Residential New Construction | 2018 |
UIL Comments on Draft Report (in text) UIL Comments on Draft Report (memo) Eversource Comments on Draft Report (in text) Eversource Comments on Draft Report (memo) EEB Residential Consultant Comments on Draft Report (in text) |
|
| [C1644] Energy Opportunities Net-To-Gross Study | 2018 |
EMI Response to Utility Comments UIL Comments on Draft Report (Memo) Eversource Comments on Draft Report (Memo) |
|
| [C1641] Business and Energy Sustainability Program Impact Evaluation | 2018 |
Final Report Appendix G - Site Result Summaries Draft Report - Redline with Comments Addressed Response to ES Comments on Draft Report Eversource Comments on Draft Report (in Report Text) Eversource Comments on Draft Report (memo) EEB C&I Consultant Comments on Draft Report (in Report Text) |
|
| [R1702-R1710] Codes and Standards Assessment | 2017 | ||
| [C1630] Largest Savers Evaluation | 2018 | ||
| [R1614/R1613] CT HVAC and Water Heater Process and Impact Evaluation / CT Heat Pump Water Heater Impact Evaluation | 2017 |
Final Report Appendices (in Box.com) Eversource Comments on Draft Report EEB Residential Consultant Comments on Draft Report (memo) EEB Residential Consultant Comments on Draft Report (within text) |
|
| [R1602] Residential New Construction Program Process Evaluation | 2017 |
Eversource Comments on Baseline Study Draft Report Final Process Evaluation Report EEB Residential Consultant Comments on Draft Process Evaluation Report (within text) EEB Residential Consultant Comments on Draft Process Evaluation Report (memo) Eversource Comments on Draft Process Evaluation Report |
|
| [R1615] LED Net-To-Gross Evaluation | 2017 |
EEB Residential Consultant Comments (within text) on Draft Report EEB Residential Consultant Comments (memo) on Draft Report |
|
| [C1639] SBEA Process and Impact Evaluations | 2017 |
Final Impact Evaluation Report Impact Evaluation Draft Report Impact Evaluation Draft Report- Appendix F Final Process Evaluation Report EEB C&I Consultant Comments (within text) on Process Evaluation Draft Report Eversource Comments on Process Evaluation Draft Report |
|
| [R1606] Eversource Behavior Program Persistence Evaluation | 2017 |
Eversource Comments on Draft Report EEB Residential Consultant Comments (within text) on Draft Report |
|
| [R113] Ductless Heat Pump Evaluation | 2016 |
Eversource Comments on Draft Report EEB Residential Consultant Comments (memo) on Draft Report EEB Residential Consultant Comments (within text) on Draft Report |
|
| [R91] Impact Evaluation Best Practices | 2015 | ||
| [R151] HES Air Sealing, Duct Sealing, and Insulation Practices | 2015 |
Eversource Comments on Draft Report |
|
| [R157] Multi-Family initiative Process Evaluation | 2015 |
EEB Residential Consultant Comments (within text) on Draft Report EEB Residential Consultant Comments (summary memo) on Draft Report |
|
| [R33] Observations & Recommendations from CT Residential Program Database Interviews | 2015 |
EEB Residential Consultant Comments on Draft Report |
|
| [R154] CT LED Lighting Study | 2015 |
EEB Residential Consultant Comments (within text) on Draft Report EEB Residential Consultant Comments (summary memo) on Draft Report NEEP Comments (within text) on Draft Report |
|
| [R84] Consumer Electronics Potential Study - Literature Review | 2014 | Project Description approved by the Evaluation Committee 5/12/14 | |
| [R48] HES Additional Measure Review | 2014 | Project Description approved by the Evaluation Committee 4/18/14 |
Comments from Eversource on Final Report Comments from UIL on Final Report Comments from Residential Consultant |
| [R32] Eversource Persistence for Year 2 Home Energy Report Program Average Users | 2014 | Project Description approved by the Evaluation Committee 5/16/14 |
EEB Residential Consultant Comments (within report) on Draft Report EEB Residential Consultant Comments (summary memo) on Draft Report |
| [R67] Residential Lighting Interactive Effects | 2014 | Project Description approved by the Evaluation Committee 4/18/14 |
Comments from Eversource on Final Report Comments from UIL on Final Report |
| [R15] Single-Family Potential Study | 2014 |
DEEP Comments on Draft Report - Version 2 UIL Comments on Draft Report - Version 2 Eversource Comments (embedded) on Draft Report - Version 2 Eversource Comments (letter) on Draft Report - Version 2 EEB Residential Consultant Comments (embedded) on Draft Report - Version 2 EEB Residential Consultant Comments (memo) on Draft Report - Version 2 |
|
| [R8] Central Air Conditioning Impact and Process Evaluation | 2014 |
Eversource Response to Final Report |
|
| [R2) Evaluation of the Year 2 Eversource Pilot Customer Behavior Program | 2014 |
Comments from Board consultant |
|
| [R16] HES Impact Evaluation | 2014 |
Eversource Response to Final Report Vol. 2 Comments Submitted by: - Eversource - UIL - HPACT - EFG (EEB Consultant) Vol. 1 Comments submitted by:
- Eversource/Eversource
- UI
- OCC
- Competitive Resources
- Yale Community Carbon Fund
- EFG (Consultant to EEB)
- DEEP
All Vol 1 and Vol 2 draft report comments can be accessed at Box.net.
|
|
| [C19] C&I New Construction Baseline & Code Compliance Study | 2014 | ||
| [C9] SBEA Impact Evaluation | 2013-14 |
|
|
| [R4] HES/HES-IE Process Evaluation and [R31] Real-Time Research | 2013-14 | Project Description approved by Evaluation Committee December 18. 2013 | |
| [C20] Energy Conscious Blueprint Program Process and Impact Evaluations | 2013-14 | Project Description approved by Evaluation Committee December 9, 2013 |
Impact Evaluation Technical Presentation Impact Evaluation Final Report Impact Evaluation Review Draft Process Evaluation Final Report (With Appendices) Response to Comments on Review Draft of Process Evaluation DEEP Comments on Review Draft of Process Evaluation Eversource Comments on Review Draft of Process Evaluation UIL Comments on Review Draft of Process Evaluation Draft Process Evaluatioin Report (and Appendix) |
| [C10] Small Business Data Mining Evaluation Study | 2013-14 | Project Description approved by Evaluation Committee December 9, 2013 | |
| [R86] Residential Lighting Net-to-Gross Study | 2013-14 | Project Description approved by Evaluation Committee November 20, 2013 | |
| [C17] Commercial & Industrial Programs Market Assessment | 2013-14 | Project Description approved by Evaluation Committee November 20, 2013 | Final Report |
| [C18] Small Business Energy Advantage Program Process Evaluation | 2013-14 | Project Description approved byEvaluation Committee November 20, 2013 | |
| [C11] Small Business Participation Barriers Study | 2013-14 | Project Description approved by Evaluation Committee November 20, 2013 |
Response to Comments on Review Draft Evaluation Committee Letter to DEEP |
| [C12] Small Business Low-Income and Limited English Barriers Study | 2013-14 | Project Description approved by Evaluation Committee November 20, 2013 |
Eversource Response to Final Report (letter) |
| [R3] Regional Hours of Use (HOU) Study | 2013 | -- |
|
| [C14] Energy Opportunities Impact Study | 2013-14 | -- |
|
| [R7] Ground Source Heat Pump Impact Study and Market Assessment | 2013 | -- |
Draft Report (April 2014) - see Box.net for report and indexes
Draft Report (Dec 2013)
|
| [R5] Weatherization Baseline Study | 2013 | -- |
|
| [C13] Large Commercial & Industrial Research: Participant Trend Analysis | 2013 | -- | |
| [R6] Characterization of Single Family Housing Stock in the State of Connecticut | 2013 | -- | Final Report |
| [R1] Year 1 of the Eversource Home Energy Reports Pilot Program | 2013 | -- | Final Report Draft Report Comments from OPower |
| Retrocommissioning, Operations and Maintenance and Business Sustainability Challenge Programs Impact Evaluation | 2013 | -- |
|
| C&I Free-Ridership and Spillover Study | 2012 | -- | Final Report Draft Report Comments from UI Comments from Eversource |
| Efficient Lighting Saturation & Market Assessment | 2012 | -- | Final Report Draft Report Comments from UI Comments from Eversource Comments from EEB Consultant Glenn Reed (Energy Futures Group) |
| Residential New Construction Baseline | 2012 | -- | Final Report Draft Report Supplementary Additional Analyses |
| Results of HES Performance Measures and Financing Focus Groups Study | 2012 | -- | Final Report Draft Report EEB Evaluation Committee Recommendations for Use of Results from the Report |
| Impact Evaluation of the Retrocommissioning, Operation & Maintenance, and Business Sustainability Challenge Programs | 2012 | -- | Final Report Draft Report Comments from UI Comments from Eversource Comments from the DEEP Bureau of Energy and Technology Policy |
| Performance Savings Document Review Stage 1 | 2012 | -- | Draft Report Comments from UI |
| UI Behavior Pilot (Home Energy Reports) Program Evaluation | 2012 | -- | Final Report Draft Report Response to Evaluation Recommendations from UI Evaluation Committee Response to UI Review and Notice of Written Draft Comments from the DEEP Bureau of Energy and Technology Policy |
| Eversource Home Energy Reports Billing Analysis Interim Report | 2012 | -- | Draft Report Response from OPower Response from Eversource |
| 2011 Evaluation Studies and Results (Report filed with the Energy and Technology Committee of the Connecticut General Assembly) |
2011 | -- | Final Report |
| EISA Lighting Focus Groups Report | 2011 | -- | Final Report |
| Impact and Process Evaluation of the Energy Conscious Blueprint Program | 2011 | -- | Final Report |
| Home Energy Solutions Impact Evaluation | 2011 | -- | Final Report |
| Market Awareness of the Connecticut Energy Efficiency Fund | 2010 | -- | Final Report |
| Evaluation of the Weatherization Residential Assistance Partnership (WRAP) and Helps Programs | 2010 | -- | Final Report |
| 2008 Energy Opportunities: Impact Evaluation Report | 2010 | -- | Final Report |
| The Market for CFLs in Connecticut | 2010 | -- | Final Report The Market for CFLs in Connecticut: Key Findings - Presentation to DPUC |
| Report on Results of the Multi-State CFL Modeling Effort | 2010 | -- | Final Report |
| Residential Central Air Conditioning Regional Assessment | 2010 | -- | Final Report |
| Connecticut Lighting Report | 2009 | -- | Final Report |
| Connecticut Small Business Impact Evaluation | 2009 | -- | Final Report Connecticut Small Business Impact Evaluation Presentation |
| Ductless MiniSplit Heat Pumps Evaluation Report | 2009 | -- | Final Report |
| eeSmarts Process Evaluation Presentation | 2009 | -- | Final Report |
| Residential Central AC Free Ridership Assessment | 2009 | -- | Final Report |
| Residential Central AC Regional Evaluation | 2009 | -- | Final Report |
| Residential Lighting Markdown Impact Report | 2009 | -- | Final Report |
| Energy Conscious Blueprint Program Standard Practices Study | 2008 | -- | Final Report |
| eeSmarts Process Evaluation | 2008 | -- | Final Report |
| 2007 Eversource Free-ridership and Spillover Report | 2008 | -- | Final Report Executive Summary |
| 2007 UI Free-ridership and Spillover Report | 2008 | -- | Final Report Executive Summary |
| 2008 Energy Opportunities Program Impact Evaluation | 2008 | -- | Final Report |
| Eversource and UI Program Savings Documentation for 2008 Program Year | 2008 | -- | Final Report |
| Residential Lighting Measure Life Study | 2008 | -- | Final Report |
| Impact and Persistence Evaluation of Eversource's Operation and Maintenance Services | 2007 | -- | Final Report Appendices Executive Summary |
| 2007-2008 Planned Evaluation Studies | 2007 | -- | Final Report |
| Avoided Energy Supply Cost in New England | 2007 | -- | Final Report |
| Eversource Process Reengineering for Increased Manufacturing Efficiency (PRIME) Program Evaluation Report | 2007 | -- | Final Report Executive Summary |
| Residential and Commercial/Industrial Lighting Measures Coincidence Factor Study | 2007 | -- | Final Report |
| Measure Life Report for Residential and Commercial/Industrial Lighting and HVAC Measures | 2007 | -- | Final Report |
| United Illuminating Company and Eversource 2005 Coincidence Factor Study | 2007 | -- | Final Report Executive Summary |
| 2004 Commercial and Industrial Programs Free-Ridership and Spillover Study | 2006 | -- | Final Report |
| eeSmarts Process Evaluation | 2006 | -- | Final Report Executive Summary |
| National Awareness of ENERGY STAR for 2006 | 2006 | -- | Final Report |
| C&LM Program Evaluation Process, Including the Selection of Independent Contractors to Conduct the Evaluations | 2006 | -- | Final Report |
| Municipal Program Impact Evaluation | 2006 | -- | Final Report |
| Retrocommissioning Pilot Program Impact Evaluation | 2006 | -- | Final Report Executive Summary |
| Retrocommissioning Pilot Program Process Evaluation | 2006 | -- | Final Report Executive Summary |
| Market Assessment for ENERGY STAR Room Air Conditioners in Connecticut | 2006 | -- | Final Report |
| CT & MA Utilities 2004-2005 Lighting Hours of Use for School Buildings Baseline Study | 2006 | -- | Final Report |
| Evaluation of the UI Helps and WRAP Low Income Weatherization Programs | 2006 | -- | Final Report Executive Summary |
| Impact, Process, and Market Study of the Connecticut Appliance Retirement Program | 2005 | -- | Final Report |
| Market Assessment and Evaluation of Connecticut's Residential ENERGY STAR Lighting Program | 2005 | -- | Final Report |
| Impact Evaluation of the Northeastern Utilities Demand Reduction Rebate Program | 2005 | -- | Final Report |
NEEP Evaluation, Measurement and Verification Forum Studies and Documents
| Report or Document | Year | Download |
|---|---|---|
| Commercial & Industrial Lighting Load Shape Project Final Report | 2011 | Final Report |
| Commercial & Industrial Lighting Measure Life and Persistence Project | 2011 | Final Report |
| Incremental Cost Study Final Report: A Report on 12 Energy Efficiency Measure Incremental Costs in Six Northeast and Mid-Atlantic Markets | 2011 | Final Report |
| NEEP Glossary of Terms Version 2.1 | 2011 | Final Document |
| NEEP Regional EM&V Forum 2011 Project Agenda & Budget | 2011 | Final Document |
| NEEP Common Statewide Energy Efficiency Reporting Guidelines Version 1.0 | 2010 | Final Document |
| End-Use Load Data Update Project Final Report | 2009 | Final Document |
| NEEP Regional EM&V Forum Proposed 2010 Projects and Budget Overview | 2009 | Final Document |