Real-Time Pricing- A Flexible Alternative for Electrical Power Supply

Abstract

In an increasingly competitive operating environment, utilities must place greater emphasis on developing programs that benefit the customer while at the same time benefiting the utility. Economy Surplus Power (ESP) is such a program. ESP offers industrial customers attractively priced power supply arrangements based on incremental production costs. Industrial customers receive hourly price quotes for electrical power through a direct computer link between TVA and the customer. The customer has the option to increase or decrease the amount of power requested in response to price signals, plant load conditions, or production requirements. This paper will describe the arrangements for the sale and use of ESP, including the communication system, pricing variations, use of curtailment rights, the types of customers currently participating in the program, and recent modifications.