SCE PTR Load Impact Evaluation

This report provides the 2014 ex post and ex ante load impact estimates for Southern California Edison’s (SCE) Peak Time Rebate (PTR) Program, which is called the Save Power Day (SPD) program.1 The SPD program is designed to encourage residential customers to reduce load by responding to the availability of a rebate during PTR event periods. The event period is from 2 PM to 6 PM on event days. During event hours, participating customers are eligible to receive bill credits for reductions in energy use. The PTR bill credit is calculated based on a customers’ event day load minus their customer-specific reference level, which is based on event period usage on prior, nonevent days.