Determinants of Actual Electricity Savings after Retrofit: Electrically Heated Homes in the Pacific Northwest

摘要

A Pacific Northwest utility operated an interim Residential Weatherization Program during 1982 and 1983. The program offered free home energy audits and cash rebates to help pay for installation of recommended retrofit measures in electrically heated homes. The program retrofit almost 104 thousand homes at a cost of almost $160 million. This study analyzes actual electricity savings for homes retrofit by the program. We examine the electricity savings achieved by these homes and the relationships between actual and predicted savings. This involves calculation of summary statistics, comparisons among groups of homes, development of regression models that explain variations across households in actual electricity savings, and examination of individual homes with anomalously large or negative savings. Data are available for nearly 1000 participants. (ERA citation 11:011420)