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Title: Electrical Energy Storage for Utility Scale Applications.


Abstract not provided.

Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the Electric Power 2007 held May 1-3, 2007 in Chicago, IL.
Country of Publication:
United States

Citation Formats

Boyes, John D., and Gyuk, Imre. Electrical Energy Storage for Utility Scale Applications.. United States: N. p., 2007. Web.
Boyes, John D., & Gyuk, Imre. Electrical Energy Storage for Utility Scale Applications.. United States.
Boyes, John D., and Gyuk, Imre. Tue . "Electrical Energy Storage for Utility Scale Applications.". United States. doi:.
title = {Electrical Energy Storage for Utility Scale Applications.},
author = {Boyes, John D. and Gyuk, Imre},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2007},
month = {Tue May 01 00:00:00 EDT 2007}

Other availability
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  • The Thermal Energy Storage (TES) Progran focuses on developing TES for daily cycling (diurnal storage), annual cycling (seasonal storage), and utility-scale applications [utility thermal energy storage (UTES)]. TES technology can be used in a new or an existing power generation facility to increase its efficiency and promote the use of this technology within the utility and the industrial sectors. The UTES project has included studies of both heat and cool storage systems for different, utility-scale applications. For example, one study showed that a molten salt TES system can substantially reduce the cost of coal-fired peak and intermediate load power productionmore » in an integrated gasification combined-cycle (IGCC) plant. The levelized energy cost (LEC) of an IGCC/TES plant can be reduced by as much as 20% over the LEC of a conventional IGCC plant. This concept produces lower-cost power than the natural-gas-fired alternative if significant escalation rates in the fuel price are assumed. In another study, an oil/rock diurnal TES system when integrated with a simple gas turbine cogeneration system was shown to produce on-peak power,for $0.045 to $0.06/kWh while supplying a 24-hour process steam load. The molten salt storage system was found to be less suitable for simple as well as combined-cycle cogeneration applications. However, in both the IGCC and the cogeneration plant applications, advanced TES concepts could substantially improve performance and economic benefits. An evaluation of TES options for precooling gas turbine inlet air showed that an ice storage system could be used to effectively increase the peak generating capacity of gas turbines when operating in hot ambient conditions.« less
  • Brookhaven National Laboratory is currently supported by ERDA to develop the technology and techniques for storing hydrogen via metal hydrides. Hydrogen is able to react with a wide variety of metal and metal alloy materials to form hydride compounds of hydrogen and metals. These compounds differ in stability--some are relatively unstable and can be readily formed and decomposed at low temperatures. The use of these systems for hydrogen storage involves the design of heat exchanger and mass transfer systems, i.e., removal of heat during the charging reaction and addition of heat during the discharge reaction. The most notable example ofmore » a metal hydride material is iron titanium which shows promise of being economical for a number of near term hydrogen storage applications. Recent work and progress on the development of metal hydrides for hydrogen storage connected with utility energy storage applications and natural gas supplementation are discussed and electric-to-electric storage system is described in some detail. A system of energy storage involving the electrolysis of hydrochloric acid is described which would utilize metal hydrides to store the hydrogen. In addition, the use of metal hydrides for hydrogen storage in automotive systems is described.« less
  • Superconducting Magnetic Energy Storage (SMES) is proposed for electric utility load leveling. Attractive costs, high diurnal energy efficiency (greater than or equal to 92%), and rapid response are advantages relative to other energy storage technologies. Recent industry-led efforts have produced a conceptual design for a 5000 MWh/1000 MW energy storage plant which is technically feasible at commercially attractive estimated costs. The SMES plant design includes a protection system which prevents damage to the magnetic coil if events require a rapid discharge of stored energy. This paper describes the design and operation of the coil protection system, which is primarily passivemore » and uses the thermal capacity of the coil itself to absorb the stored electromagnetic energy.« less
  • Superconducting Magnetic Energy Storage (SMES) has potential for use in leveling electric utility loads on a large scale. The advantage of SMES over other energy-storage technologies is its high net round-trip energy efficiency. In 1981, the Electric Power Research Institute (EPRI) commissioned Bechtel Group, Inc. (Bechtel), in association with GA Technologies, Inc. (GA), to identify and detail an appropriate SMES configuration for the purpose of establishing a baseline capital cost. This paper briefly summarizes the overall design, tabulates costs, and discusses potential cost reductions.
  • This paper describes a study of the feasibility of using either Ca(OH)/sub 2/ or CH/sub 4/-CO/sub 2/ reaction systems for long-duration storage in a central receiver, solar energy facility. The system is required to generate 262 MW /SUB t/ (895 x 10/sup 6/ Btu/h) as 4.14-MPa (600-psig), 400/sup 0/C (750/sup 0/F) superheated steam, with usage split evenly among 10 users clustered in an industrial park. Results indicate that use of a solar thermal system with long duration storage of either thermochemical or direct thermal energy (molten draw salt) is probably not justified when compared to the use of coal-fired boilersmore » for steam generation. However, solar thermal systems with either thermochemical or direct thermal energy storage may be competitive with oil- or natural gas-fired boilers if the cost of the solar energy supplied to the storage system is sufficiently low and the costs of oil and natural gas have escalated to a sufficiently high level.« less