Compressed Air Energy Storage (CAES) Scoping Study for California - PIER Final Project Report

Publication Number:    CEC-500-2008-069

Abstract:
This report presents the results of a technical scoping study on the compressed air energy storage technology. Compressed air storage may potentially meet the California Energy Commission�s goal to �reduce the cost of electricity and increase value� by enabling a relatively new energy storage option be technically evaluated for potential use in California. The compressed air energy storage technology allows less expensive nighttime electricity energy to be effectively stored such as wind or other off peak generation, replacing relatively more expensive, peaking daytime energy. Since compressed air energy storage plants have quick time response and excellent part-load characteristics and can provide ramping power (up or down) as needed by the California Independent System Operator (California ISO).

The report documents the following project results:

  1. Identifies potential geologic sites/regions in California that can be used by compressed air energy storage plants to cost-effectively store off-peak and/or renewable energy.
  2. Identifies and analyzes potential compressed air energy storage preliminary designs that could use the below-ground compressed air energy storage geologic sites in California.
  3. Identifies and analyzes potential compressed air energy storage preliminary designs that use above-ground air piping or air vessel systems for the air storage system.
  4. Presents California maps showing natural gas transmission systems and high-voltage transmission systems to cost-effectively implement compressed air energy storage plants in California.
  5. Recommends future compressed air energy storage research and development to meet California needs.

Keywords: CAES, compressed air energy storage, electricity storage, depleted gas/oil fields, salt caverns, above-ground storage options, CAES plant design, adiabatic-compressed air energy storage, siting CAES, siting compressed air energy storage, CAES opportunities in California, energy storage for wind energy

Author(s):  Robert B. Schainker, Abhi Rao

Commission Division:    Technology Systems Division - R&D, PIER (500)

Office/Program:    Energy Efficiency

PIER Program Area:    Buildings End-Use Energy Efficiency

Date Report Completed:    August 2008

Date On Line:    11/05/2008

Acrobat PDF File Size: 76 pages, 2,000 kilobytes**

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