The interactive figure below presents results on the total installed ESS cost ranges by technology, year, power capacity (MW), and duration (hr). Department of Energy's (DOE) Energy Storage Grand Challenge is a comprehensive program that seeks to accelerate. . There is a need for a trusted benchmark price that has a well understood and internally consistent methodology so comparing the different technology options across different power and energy levels produces a reliable answer. Other factors include annual maintenance, cooling costs, unplanned downtime, battery replacement, downtime, a risk of failure, and footprint.
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