SEGS Plant Performance 1989-1997

Research output: Contribution to conferencePaper


The five 30-MW SEGS (Solar Electric Generating System) plants located at Kramer Junction, California, have been in operation since 1987. This paper reports and discusses performance trends during and after the initial operational years, covering the period 1987 through 1997. Included are details on the electrical output, solar field performance, plant efficiency and solar conditions. Performancedata are presented in a standardized format for more meaningful comparison to other plants or technologies. Output of the plants during the period has an overall upward trend, though it has fluctuated relative to nominal values for a variety of reasons, such as weather, significant alterations in the O&M structure and procedutes, maturity in operation and experience, and variations in spareparts supply. In recent years the output has risen markedly, resulting in new plant records for output and efficiency. Key factors effecting these achievements are discussed.
Original languageAmerican English
Number of pages8
StatePublished - 1998
EventInternational Solar Energy Conference - Albuquerque, New Mexico
Duration: 14 Jun 199817 Jun 1998


ConferenceInternational Solar Energy Conference
CityAlbuquerque, New Mexico

NREL Publication Number

  • NREL/CP-550-25511


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