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U.S. Department of Energy
Office of Scientific and Technical Information

Assessment of unitary cool storage systems: Final report

Technical Report ·
OSTI ID:6098908
Cool storage systems in large commercial and industrial buildings have been proven to be an effective load management technology for electric utilities and a cost effective investment for their customers. The development of small cool storage systems designed for houses and small commercial buildings has been hindered by a lack of technical and economic data. This report records the status of this technology, evaluates manufacturers data and identifies the needs for additional research and development work. A survey of the cool storage industry was conducted and five manufacturers were identified to have products suitable for residential and small commercial applications. Their equipment and performance data were documented and evaluated. Seven utilities and other organizations that were testing and/or field monitoring unitary cool storage systems were visited, their testing programs were documented. It was found that most of the products are still in the development and demonstration stage and only one manufacturer had its product in production. Limited test performance data were available from manufacturers. Test results show that residential cool storage systems are able to effectively shift electric demand from on-peak to off-peak hours, but they are currently not cost effective. A residential/unitary cool storage R and D Workshop was conducted by EPRI at Dallas, Texas on May 3-4, 1988, the meeting minutes are included in this report. 82 figs., 24 tabs.
Research Organization:
Electric Power Research Inst., Palo Alto, CA (USA); Ayres Ezer Lau, Inc., Los Angeles, CA (USA)
OSTI ID:
6098908
Report Number(s):
EPRI-CU-6376
Country of Publication:
United States
Language:
English