Calculation of levelized costs of electricity for various electrical energy storage systems

Manasseh Obi, S.M. Jensen, Jennifer B. Ferris and Robert B. Bass

Renewable and Sustainable Energy Reviews, 2017, vol. 67, issue C, 908-920

Abstract: Installed capacity of renewable energy resources has increased dramatically in recent years, particularly for wind and photovoltaic solar. Concurrently, the costs of utility-scale electrical energy storage options have been decreasing, making inevitable a crossing point at which it will become economically viable to couple renewable energy generation with utility-scale storage systems. This paper proposes a methodology for calculating Levelized Cost of Electricity (LCOE) for utility-scale storage systems, with the intent of providing engineers, financiers and policy makers the means by which to evaluate disparate storage systems using a common economic metric. We discuss the variables influencing LCOE in detail, particularly those pertinent to electrical energy storage systems. We present results of LCOE calculations for various storage systems, specifically pumped hydro, compressed air, and chemical batteries, which we then compare with a more traditional arbitrage option, the simple-cycle combustion turbine. Federal and State government electrical energy storage tax incentives are considered as well. We also analyze the sensitivities of LCOE to several key variables using Monte Carlo analysis. Considering the downward-sloping cost trends of storage systems and the increased penetration levels of stochastic and non-dispatchable renewable resources, large-scale storage is becoming a significant issue for utilities, thus justifying the development of a levelized costing algorithm.

Keywords: LCOE; Energy Storage; Monte Carlo (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (35)

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DOI: 10.1016/j.rser.2016.09.043

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