This is a three-page summary of performed by Freeman, Sullivan consultants. It concerns 10,000 customers who signed up for PG&E's residential SmartRate critical peak pricing tariff in 2008. It compares the load impact estimates with estimates based on the demand models developed for California's Statewide Pricing Pilot (SPP). The demand models estimated from the SPP pilot allow load impact estimates to be made that adjust for the differences between different customers in different geographies. Differences in the two estimates were quite similar in each hour. These findings should provide confidence that load impact estimates based on pricing pilots will in fact be realized if similar tariffs are actually deployed.

Jun 13, 2009