Evaluation, Measurement and Verification
Documents referenced on this page, but not posted, can be obtained by contacting saveonenergy@ieso.ca with a link to the web page that lists the document and advise whether it needs to be provided in an accessible format. Please allow a minimum of one business day for a response.
To ensure that Save on Energy programs achieve their intended goals, provide value for ratepayers and identify opportunities for continuous improvement, the IESO regularly measures electricity savings and demand reductions from each program in market. Program evaluations generally include market assessments, process evaluations, retrospective outcome/impact assessments and cost-benefit evaluations as per the IESO Cost-Effectiveness Guide and IESO Cost-Effectiveness Tool.
Please refer to the IESO CE Tool User Guide for step-by-step instructions on how to use the IESO CE Tool.
EM&V Protocol (v4.0)
The IESO recently updated its industry-leading Evaluation, Measurement and Verification (EM&V) Protocol. This is the most significant update to the protocol since it was first released more than 10 years ago. The IESO has been an industry leader in EM&V since Ontario began delivering energy-efficiency programs in 2007.
The EM&V Protocol is used by program evaluators and program administrators to ensure conservation and demand management programs achieve their intended goals, to enable the development of verified energy and demand savings results and to facilitate adjustments to programs.
The updates include new and revised evaluation methodologies, concepts covering new types of energy-efficiency programming, and it boasts a streamlined, easy-to-read structure.
The evaluation reports below are produced in accordance with the IESO EM&V Protocol and present energy and demand savings, as well as, recommendations for program improvements. Responses to the recommendations for program improvements are also available on this web site.
Evaluation Reports
The 2021-2024 CDM Framework achieved 367.7 GWh of net verified energy savings and 48.5 MW of net verified peak demand savings during its first two years (PY2021-2022) of implementation that persist to 2026. Evaluation processes provide confidence that energy efficiency is a reliable resource for system planning that persists on average for more than 10 years. At less than three cents per kilowatt-hour, energy efficiency is one of Ontario’s most cost-effective and enduring energy resources.
2021-2024 CDM Framework Programs
- Retrofit Program
- Small Business Program
- Foodservice Distributor Discount Program
- Energy Performance Program
- Energy Manager Program
- Energy Affordability Program
- Remote First Nations Energy Efficiency Pilot Program
- Capability Building Initiatives
Key Findings and Recommendations Summaries
Interim Framework Programs
2021-2024 CDM Framework Programs
- Retrofit Program
- Small Business Program
- Energy Affordability Program
- Capability Building Initiatives
Key Findings and Recommendations Summaries (2021-2024 CDM Framework)
- Retrofit Program
- Small Business Program
- Energy Affordability Program
- Capability Building Initiatives
Interim Framework Programs
- Retrofit Program
- Small Business Lighting Program
- Energy Manager Program
- Process and Systems Upgrades Program
- Energy Performance Program
- First Nations Conservation Program
- Home Assistance Program
- Refrigeration Efficiency Program (Hydro One)
- Smart Thermostat Local Program (Hydro Ottawa)
- Smart Thermostat Local Program (Utilities Kingston)
- Strategic Energy Management (London Hydro)
- Block Heater Timer (Synergy North)
Key Findings and Recommendations Summaries (Interim Framework)
Interim Framework Programs
- Retrofit Program
- Small Business Lighting Program
- Refrigeration Efficiency Program
- Energy Manager Program
- Process and Systems Upgrades Program
- Home Assistance Program
- Community Conservation Program
- Swimming Pool Efficiency Program
Key Findings and Recommendations Summaries (Interim Framework)
- Retrofit Program
- Small Business Lighting Program
- Energy Manager Program & Process and Systems Upgrades Program
- Home Assistance Program
Conservation First Framework
Interim Framework Programs
- Retrofit Program
- Small Business Lighting Program
- Refrigeration Efficiency Program
- Energy Performance Program
- Energy Manager Program
- Process and Systems Upgrades Program
- Home Assistance Program
Key Findings and Recommendations Summaries (Interim Framework)
- Retrofit Program
- Small Business Lighting Program
- Refrigeration Efficiency Program
- Energy Performance Program
- Energy Manager Program & Process and Systems Upgrades Program
- Home Assistance Program
Conservation First Framework Programs
Conservation First Framework Programs
Province Wide Programs
- Business Programs
- Residential Programs
- Industrial Programs
- Home Assistance Program
Centrally Delivered Programs
- Energy Performance Program For Multi-Site Customers
- Whole Home Pilot*
*The Whole Home Pilot contains results from 2017 and some of 2018
Local Programs
- Social Benchmarking Program
- Clothesline Instant Saving Program
- Conservation on the Coast Home Assistance Program
- Swimming Pool Efficiency Program
- Hydro One Networks Inc. First Nations Conservation Program
- Business Refrigeration Incentive Local Program
- Toronto Hydro PUMPsaver Local Program
Innovation Fund Pilot
- Block Heater Timer Pilot
- Home Energy Assessment and Retrofit Pilot
- Toronto Hydro/Enbridge Gas Joint Low Income Pilot
- Niagara Peninsula Energy Inc. Hotel/Motel Pilot
- Small & Medium Business Energy Management System Innovation Pilot
Key Observations and Recommendations Summaries
- Business Programs
- Residential Programs
- Industrial Programs
- Industrial Accelerator Program
- Energy Performance Program
Province Wide Programs
- Business Programs
- Consumer Programs
- Home Assistance Program
- Industrial Programs
Local Programs
- Business Refrigeration Incentive Local Program
- PUMPsaver Pilot and Local Program
- Social Benchmarking Program – Alectra (Powerstream) and Collus Powerstream
- Social Benchmarking Program – Alectra (Horizon) and Hydro One Networks Inc.
Innovation Fund Pilots
- Residential Direct Install Pilot
- Residential Direct Mail Pilot
- Solar Powered Attic Ventilation Pilot
- Truckload Events Pilot
- Electronics Takeback Pilot Evaluation
- Building Optimization Pilot
- Direct Install: RTU Controls Pilot (RTUsaver)
- P4P for Class B Office Pilot Program (OPsaver)
- Social Benchmarking Pilot
- EnWin Residential Ductless Heat Pump Pilot
- Hydro One Networks Inc. Heat Pump Advantage Water Heater Rebate Pilot
- Hydro One Networks Inc. Heat Pump Advantage Space Heating Rebate Pilot
Key Findings and Recommendation Summaries
- Business Programs
- Residential Programs
- Home Assistance Program
- Industrial Programs
- Program Enabled Savings
- Industrial Accelerator
- Aboriginal Conservation Program Evaluation Report
- Business Programs Evaluation Report
- Consumer Programs Evaluation Report | Appendices
- Home Assistance Program Evaluation Report
- Industrial Programs Evaluation Report
- New Construction Programs Evaluation Report
- Niagara-on-the Lake Conservation Cultivator Pilot
- Residential Demand Response Program Evaluation Report
- Evaluation of the Consumer Initiatives
- Evaluation of the Consumer Initiatives – Appendices
- Evaluation of the Aboriginal Conservation Program
- Evaluation of Business Initiatives
- Evaluation of C&I Demand Response Initiatives
- Evaluation of peaksaverPLUS
- Evaluation of the Home Assistance Program
- Evaluation of the Industrial Initiatives
- Evaluation of the New Construction Initiatives
- Evaluation of Business Initiatives
- Evaluation of C&I Demand Response Initiatives
- Evaluation of peaksaverPLUS
- Evaluation of the Home Assistance Program
- Evaluation of the Industrial Initiatives
- Evaluation of the New Construction Initiatives
- Evaluation of TOU Rates - Year Two Analysis
- Business Initiatives Evaluation
- Consumer Program Evaluation
- Impact Evaluation of Commercial & Industrial Demand Response Programs
- High Performance and Residential New Construction Programs Evaluation
- Industrial Accelerator Program Impact Evaluation
- peaksaverPLUS Evaluation
- Preliminary Report- First Year Impact Evaluation of Ontario's Time of Use Rates
- Process and Systems Upgrade Initiative Impact Evaluation
- Small Business Lighting Evaluation
- Business Programs Evaluation
- Commercial and Industrial Demand Response Programs Evaluation
- Consumer Programs Evaluation
- Industrial Accelerator Program Process Evaluation
- peaksaver Load Impact Evaluation
- Process and Systems Upgrade Initiative Process Evaluation
- Small Business Lighting Program Evaluation
- New Construction Programs - Evaluation Report
- Cross Cutting Evaluation of Commercial and Institutional Retrofit Incentive Programs Evaluation Commercial and Industrial Demand Response Program Process Evaluation
- OPA Multifamily Retrofit Programs Evaluation
- Residential Cool Savings Rebate Program Evaluation
- Residential Great Refrigerator Roundup Program Evaluation
- Commercial & Industrial Demand Response Load Impact Evaluation
- peaksaver® Residential and Small Commercial Demand Response Load Impact Evaluation
- Residential Power Pledge Program Evaluation
- Residential Power Savings Events Program Evaluation
- Small Commercial Direct Install Program Evaluation
- Residential Cool Savings Rebate Evaluation
- Cross-Cutting Evaluation of Commercial and Institutional Retrofit Incentive Initiative
- Cross-Cutting Multifamily Building Retrofit Initiative Evaluation
- Residential Every Kilowatt Counts Power Savings Events Program Evaluation
- Residential Great Refrigerator Roundup Program Evaluation
- Impact Evaluation of Ontario Power Authority's Commercial & Industrial Demand Response Programs
- peaksaver® Residential Air Conditioner Measurement and Verification Study
- peaksaver® Program Participant Satisfaction, Comfort Findings
- Rewards for Recycling Program Evaluation
- Small Commercial Direct Install Program Evaluation
- Residential Summer Challenge Program Impact Evaluation
- Commercial & Industrial Demand Response Load Impact Evaluation
- Cross-Cutting Evaluation of Commercial and Institutional Retrofit Incentive Programs
- Cross-Cutting Multifamily Building Retrofit Initiative Evaluation
- OPA Residential Every Kilowatt Counts Power Savings Event, Keep Cool, and Rewards for Recycling Evaluation
- OPA Small Commercial Direct Install Program Evaluation
- Residential Summer Sweepstakes Evaluation
- Energy Star for New Homes Pilot Evaluation
- Every Kilowatt Counts Program Evaluation
- Hot and Cool Savings Program Evaluation
- OPA Great Refrigerator Roundup Program Evaluation
- Summer Savings Program Evaluation
Prescriptive Measures and Assumptions Lists
- 2024 Prescriptive Measures and Assumptions List
- 2023 Prescriptive Measures and Assumptions List (pdf)
- 2022 Prescriptive Measures and Assumptions List (pdf)
- 2021 Prescriptive Measures and Assumptions List (pdf)
- 2020 Prescriptive Measures and Assumptions List (pdf)
- 2019 Prescriptive Measures and Assumptions List (pdf)