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Evaluation studies help to verify and qualify the impact that programs are having on energy savings. These studies are relied upon to inform the planning and development of National Grid’s energy efficiency programs and services.

2020 Studies

National Grid Rhode Island EnergyWise Single Family Program Impact and Process Evaluation
National Grid Rhode Island EnergyWise Multifamily Program Impact and Process Evaluation
National Grid Rhode Island Home Energy Reports Program Impact Evaluation
2019 Rhode Island Shelf Stocking Study

2019 Studies

Rhode Island 2018 Lighting Sales Data Analysis
2018 Rhode Island Shelf Stocking Study
Rhode Island Appliance Recycling Report

2018 Studies

HEAT Loan Assessment
Rhode Island Baseline Study of Single-Family Residential New Construction
Rhode Island Statewide Behavioral Evaluation: Savings Persistence Literature Review
2017 Seasonal Savings Evaluation
2017 Residential Wi-Fi Thermostat DR Evaluation
National Grid Rhode Island Lighting Market Assessment
National Grid Rhode Island Appliance Saturation Survey Report

2017 Studies

Final 2017 UDRH Inputs for the Rhode Island Residential New Construction Program
Rhode Island 2017 Code vs. UDRH Study
Rhode Island Home Energy Report Program Impact and Process Evaluation

2016 Studies

Impact Evaluation of 2014 EnergyWise Single Family Program
National Grid Rhode Island EnergyWise Single Family Process Evaluation
Ductless Mini-Split Heat Pump Impact Evaluation
Ductless Mini-Split Heat Pump (DMSHP) Cooling Season Results

2015 Studies

High Efficiency Heating Equipment Impact Evaluation
Lighting Interactive Effects Study Preliminary Results
Cool Smart Incremental Cost Study
Ductless Mini-Split Heat Pump (DMSHP) Final Heating Season Results

2014 Studies

Northeast Residential Lighting Hours-of-Use Study
Rhode Island Behavioral Program and Pilots Impact and Process Evaluation

2013 Studies

2012 Residential Heating, Water Heating, and Cooling Equipment Evaluation: Net-to-Gross, Market Effects, and Equipment Replacement Timing
Residential Energy Efficiency Program Communications Focus Groups

2012 Studies

Rhode Island EnergyWise Single Family Impact Evaluation
Rhode Island 2011 Baseline Study of Single-Family Residential New Construction

2011 Studies

The Rhode Island Appliance Turn-in Program
Results of the Multistate CFL Modeling Effort
Impact Evaluation for Rhode Island Multifamily Gas Program EnergyWise (Program Year 2010)
Rhode Island Appliance Turn-in Program Impact Evaluation

2010 Studies

EnergyWise 2008 Program Evaluation

2009 Studies

Residential Lighting Markdown Impact Evaluation
Residential Central AC Regional Evaluation