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Skip Navigation LinksDNREC : Division of Energy and Climate : Evaluation, Measurement & Verification

 Evaluation, Measurement & Verification

EM&V (Evaluation, Measurement, and Verification) is a catchall acronym for determining impacts of energy efficiency programs and projects. EM&V is a vital tool for creating consensus regarding the impact of current and future efficiency investments. Additionally, EM&V is used to inform future energy efficiency program design and investment decisions. For more information, please review the Delaware EM&V 101 presentation slides here.

The Delaware Department of Natural Resources and Environmental Control (DNREC), Division of Energy and Climate has statutory oversight and management responsibilities for much of the State’s energy efficiency policy. Under the Energy Efficiency Resource Standard (EERS) legislation, DNREC has the responsibility for determining utility compliance with Delaware’s EERS requirements and the establishment of evaluation protocols and standards.  

Current Projects

Evaluation, Measurement & Verification Regulations
The Division of Energy & Climate is currently drafting Evaluation, Measurement & Verification (EM&V) regulations pursuant to Title 29, Section 8059 of Delaware Code.  For current information about this process, please visit the Delaware Evaluation, Measurement & Verification Regulations Development Webpage 

Delaware Energy Efficiency Potential Study
The purpose of the potential study is to better understand how much energy industrial, commercial, and residential consumers in Delaware could save through efficiency improvements, and to devise cost-effective programs to achieve those savings. Phase I of the Potential Study involves the development of preliminary estimates of efficiency potential in Delaware, and Phase II focuses on how to achieve the potential identified in the first phase through new programs and policies. The completed reports are available for review here.

Mid-Atlantic Technical Resource Manual
The purpose of a Technical Resource Manual (TRM) is to provide a single, common reference document for estimating the energy and peak demand savings resulting from the installation of energy efficiency measures. The data and methodologies prescribed by the TRM are designed for use by program planners, administrators, implementers, regulatory entities, energy utilities for cost-effectiveness screening and program planning, tracking, and reporting. The TRM is also used by program evaluators for evaluating the performance of energy efficiency programs and facili

The Mid-Atlantic TRM  is a collaborative project with the Northeast Energy Efficiency Partnerships (NEEP) which is funded by Delaware, Maryland, and the District of Columbia. The Mid-Atlantic TRM  serves as an important tool to support rate-funded efficiency investments, both for planning and assessment of success in meeting specific state goals. The intent of the project is to develop and document detailed common assumptions for approximately thirty prescriptive residential and commercial/industrial electric energy efficiency measures savings. For each measure, the TRM includes either specific deemed values or algorithms for calculating:

·         Gross annual electric energy savings;

·         Gross electric summer coincident peak demand savings;

·         Gross annual fossil fuel energy savings (for electric efficiency measures that also save fossil fuels)

·         Other resource savings as appropriate (e.g. water savings, O&M impacts, etc);

·         Incremental costs; and

·         Measure lives 


Energy Baseline Studies
Delaware has completed Residential and Commercial Energy End-use Baseline Studies. The baseline studies provide an assessment of a “market baseline” of existing residential and commercial buildings and equipment stock in the State of Delaware. Baseline studies help policy makers and utilities make informed decisions about the energy end uses and equipment that will be most readily and cost-effectively targeted with energy efficiency programs.

  The Residential Baseline study is available for review here and the Commercial Baseline study is available here. 

For more information about Delaware’s EM&V activities, please contact Emily St. Clair at 302-735-3480 or by email

Related EM&V links:

American Council for an Energy Efficient Economy (ACEEE)

Northeast Energy Efficiency Partnerships (NEEP) EM&V Forum

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