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Accession Number DE2013-1079719
Title Value of Energy Storage for Grid Applications.
Publication Date May 2013
Media Count 45p
Personal Author B. Kirby D. Palchak J. Jorgenson M. Hummon M. O'Malley O. Ma P. Denholm T. Jenkin
Abstract This analysis evaluates several operational benefits of electricity storage, including load-leveling, spinning contingency reserves, and regulation reserves. Storage devices were simulated in a utility system in the western United States, and the operational costs of generation was compared to the same system without the added storage. This operational value of storage was estimated for devices of various sizes, providing different services, and with several sensitivities to fuel price and other factors. Overall, the results followed previous analyses that demonstrate relatively low value for load-leveling but greater value for provision of reserve services. The value was estimated by taking the difference in operational costs between cases with and without energy storage and represents the operational cost savings from deploying storage by a traditional vertically integrated utility. The analysis also estimated the potential revenues derived from a merchant storage plant in a restructured market, based on marginal system prices. Due to suppression of on-/off-peak price differentials and incomplete capture of system benefits (such as the cost of power plant starts), the revenue obtained by storage in a market setting appears to be substantially less than the net benefit provided to the system. This demonstrates some of the additional challenges for storage deployed in restructured energy markets.
Keywords Costs
Electric power
Electric utilities
Energy storage systems
Fuels
Market
Peak load
Power plants
Prices
Regulations
Revenue


 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 97O - Miscellaneous Energy Conversion & Storage
97I - Electric Power Production
97G - Policies, Regulations & Studies
Corporate Author National Renewable Energy Lab., Golden, CO.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1320
Contract Number DE-AC36-08GO28308

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