Teamwork in the Assessment of the Residential Market:California's Consortium Residential Appliance SaturationAnd Unit Energy Consumption Study

摘要

For the first time in California, the large investor-owned utilities (IOUs) pooled resourcesand performed a residential appliance saturation and unit energy consumption (UEC) study as ateam. The objective of the study is to inventory residential equipment and usage patterns as wellas to model overall energy use by appliance. The study was designed to allow comparison ofresults across utility service territories, climate zones, and other variables of interest (I.e.,dwelling type, dwelling age, heating type). The study includes results for 21,918 residentialcustomers plus air conditioning and whole-house load data from 180 sites. This rich set ofcustomer data includes information on all appliances, equipment, and general usage habits. Thestudy also includes a detailed conditional demand analysis that calculates UEC values.This paper describes the study design and implementation methods and an overview ofthe results. We draw some overarching conclusions about energy use throughout the state anddiscuss how different elements of the study aid in the development of these results.The core study was completed in early 2004, and load shapes will be available in latesummer 2004. The results will be useful for parties implementing, planning, and evaluatingenergy-efficiency programs in California.