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Study: Energy Storage Will
Soon Replace Peaker Plants

by Robert Walton
Utility Dive, November 13, 2014

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The price of energy storage is dropping, and Energy Strategies Group (ESG) predicts that the cost will soon displace more expensive simple cycle peaking facilities whose power is only needed sporadically.

The firm has put out a white paper using ViZn Energy's 4-hour storage solution as a proxy for the lowest-cost multi-hour storage options being commercialized, and finding that by 2018 costs will run about $974 per kW, "nearly identical to that of a conventional simple cycle peaker," said Chet Lyons, founder of ESG.

That figure means about $244 per installed kWh, and "given the added benefits of installing storage in the distribution network, by 2018 storage will be a winner against the mid-range cost for a simple cycle CT and clearly disruptive compared to higher cost simple cycle CTs," Lyons said in a blog for Renewable Energy World.

The white paper also notes that when energy storage can be located at utility substations and owned, aggregated and controlled by utilities, the benefits are greater.

"By providing energy balancing services at both a regional (transmission) and local (distribution) level with the same storage asset, the locational value and capacity utilization of storage can be much higher compared to CTs interconnected at transmission voltage and operated as a central station resource," the paper determined.

Related Sites:
Energy Storage Will Soon Replace Simple Cycle Combustion Turbine Peaker Plants

Robert Walton
Study: Energy Storage Will Soon Replace Peaker Plants
Utility Dive, November 13, 2014

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