| Description | Energy Savings via Conservation Voltage Reduction: Measurement and Verification Methodologies and Field Results
Modern electric distribution grids are rapidly evolving toward greener and more resilient operations. Conservation Voltage Reduction (CVR) is a popular energy efficiency measure that reduces energy consumption, minimizes peak load, and makes grids more environmentally friendly, through feeder-level voltage reduction. A major benefit of CVR is that energy consumption at the customer end reduces automatically without negatively impacting any equipment operation or sacrificing customer comfort. Studies have shown that deployment of CVR throughout the feeders in the U.S. can yield energy savings of 3.04% annually. Utilities across U.S. are looking to leverage this benefit to its full potential while designing energy-efficient distribution systems. CVR Measurement and Verification (M&V) is to quantify its energy savings or peak reductions, which is essential and required by regulatory agencies. However, CVR M&V is challenging due to the stochastic nature of consumer loads, a lack of benchmark load consumption measurement during the CVR period, various data availability issues, and the fact that distinguishing the changes in load and energy consumption due to voltage reduction from other impact factors is difficult. This talk will introduce our effort to develop an IEEE Standard on CVR M&V (IEEE Std. P3102). The talk will present state-of-the-art methodologies to quantify CVR factor and energy savings, including conventional regression and comparison methods, as well as a new load modeling-based method. These methods are then verified and compared using real utility data. |
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