Abstract
British Columbia provides electrical service using regulated rates for energy and demand charges. Under this limited market structure, where there is no time-of-use tariff, benefits of behind-the-meter storage are derived from demand charge management or renewable integration. Potential cost savings for a commercial load (a university) using electrical storage for demand charge reductions are investigated. Battery sizes of 500 kW/2 MWh and 1 MW/3 MWh with round trip efficiencies between 80 - 100 % are analyzed. Demand data with 15-minute resolution over one year is tested using simple battery dispatch strategies. Neglecting investment costs, annual operational savings vary from 50 - 70 K$/year depending on battery rating, efficiency and dispatch strategy. Cost savings and value may be increased with optimized storage rating and dispatch strategy.
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