Full Title: Recent Developments in Energy Efficiency Evaluation, Measurement, and Verification
Author(s): Seth Nowak, Maggie Molina, and Martin Kushler
Publisher(s): American Council for an Energy-Efficient Economy
Publication Date: 10/2017
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Evaluation, measurement, and verification (EM&V) plays many vital roles in the planning, development, and deployment of energy efficiency utility system resources—and those resources are growing and changing. As energy efficiency comes to greater scale in the electric and natural gas sectors, EM&V is evolving along with it. Energy efficiency has grown tremendously as an inexpensive utility system resource to meet long-term energy needs; it is also emerging as an important distributed energy resource that provides both time and locational value to meet the short-term energy needs of the distribution system. The multiple benefits of energy efficiency as a low-cost, reliable, and clean resource are, to some extent, dependent on EM&V to quantify them and make them visible.
In this report, we first identify states that exhibit policy and institutional leadership. We then discuss three topics that have recently received significant attention in the industry: deemed savings and technical reference manuals (TRMs), common practice baselines (CPBs), and advanced metering-based M&V enabled by greater data availability and improved data analytics (M&V 2.0 has become the most commonly used term for this set of tools and approaches). We present specific case studies for each topic, followed by a discussion of major challenges facing the EM&V field.
The three specific topic areas in this report represent only a fraction of the many important developments and ongoing challenges in the energy efficiency evaluation field. Others that are significant, but beyond this report’s scope, include the interactions of energy efficiency and other distributed energy resources, such as demand response; the evaluation of market effects and market transformation strategies; the role of efficiency evaluation for air regulators; measurement of nonenergy benefits; and the increased attention—especially from economists—on randomized control trials.