FERC seeks comment on 500-MW pumped storage project in Calif.

The Federal Energy Regulatory Commission on Dec. 19 put out for notice that on July 1, the San Diego County Water Authority filed an application for a preliminary permit proposing to study the feasibility of the San Vicente Pumped Storage Water Power Project.

The project would be located at the existing San Vicente dam and reservoir on San Vicente Creek in San Diego County, Calif. The project would consist of the existing San Vicente reservoir functioning as the lower reservoir of the project and one of four alternatives as an upper reservoir.

The sole purpose of a preliminary permit, if issued, is to grant the permit holder priority to file a license application during the permit term.

The San Vicente reservoir portion of the project consists of: an existing dam, currently being raised to a dam height of 337 feet, and a length of 1,442 feet; and an existing impoundment, that upon completion of the dam raise will have a surface area of 1,600 acres, and storage capacity of 247,000 acre-feet with a normal maximum water surface elevation of 767 feet above mean sea level (msl).

There are four alternatives for the upper reservoir:

  • Alternative Site A is located near Iron Mountain, three miles northwest of San Vicente reservoir;
  • Alternative Site B is located near Foster Canyon, around 0.5 mile northwest of San Vicente reservoir.
  • Alternative Site C is located about 1.8 miles southeast of the San Vicente reservoir.
  • Alternative Site D is located about 1.8 miles southeast of the San Vicente reservoir.

Each alternative would interconnect via a 230-kV primary transmission line to the existing San Diego Gas and Electric Sunrise Powerlink 500-kV transmission line located approximately one half mile northwest of the project. The applicant proposes to investigate potential power development in the range of 240 MW to 500 MW. The project would have a maximum estimated annual generation of up to 1,000 gigawatt-hours, which would be sold to a local utility.

The applicant contact is: Frank Belock, Deputy General Manager, San Diego County Water Authority, 4677 Overland Avenue, San Diego CA 92123; phone: (858) 522-6788.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.