CPUC Advanced Rate Design Forum Design and Implementation of Real Time Pricing and Other Advanced Dynamic Rates Cyndee Fang Manager of Customer Pricing December 12, 2017
The Utility System Transmission: Generation/Commodity: • Safety, repair, relocation, • To serve customer energy communication, grid visibility and needs (energy) control • To serve System Reliability • Economic Efficiency needs (generation capacity) • Public Policy • Reliability Requirements to meet System Peak • Interconnect new generators Distribution Grid: • Safety, repair, relocation, communication, grid visibility and control • Maintain the delivery of safe and reliable service.at the local level Customer Set-up: • To ensure customers are ready to receive energy services 2
Potential Need for More Flexible Price Signals to Meet Future Goals • TOU periods should continue for a minimum of 5 years. • Residential EV charging can result in a demand many times greater than a typical residential household load. • The charging of commercial fleet vehicles can have a demand of 10kW to over 100kW per vehicle . 3
Rate Design Tools – Current and Future Price Signal and Cost Recovery Flat More Tiered Conventional TOU Energy Rates RTP - Hourly More CPP is an energy TOU/Hourly Advanced option that provides Critical Peak Pricing a “capacity” price On-peak Demand System/Circuit signal Charges Maximum or Circuit-level CPP Demand Non-Coincident Charges Demand provides a locational Daily Demand Charges price signal while still Charges Recovery Other charging all Fixed Charge Cost Alternatives customers the same varies by Energy Fixed Charge Demand or price Rates Customer size 4
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