Probabilistic simulation of multiple energy storage devices for production cost calculations. Final report

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Abstract
A computationally feasible probabilistic production cost model capable of evaluating the impact on the operating cost of an electric utility of multiple energy storage technologies such as pumped-storage hydroelectric, storage batteries, cryogenic storage, flywheels, and gas turbines utilizing compressed air storage is described. The model is capable of simulating the complex interactions of individual units of each storage technology with the remaining units, both storage and nonstorage, of the power system. Operating characteristics of the various energy storage technologies including forced outage rates, cycle efficiencies, fuel characteristics, and storage capability constraints are considered in the model as well as differences between these characteristics among individual units within each storage technology. The model is oriented toward - but not restricted to - the Wien Automatic System Planning Package (WASP), a widely used generation system expansion planning model. In addition to the multiple energy storage technology capability, the model is able to simulate individually, multiple generting units whose energy is preassigned; e.g., conventional hydroelectric units.

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