Solar Electric Generating Station II

This page provides information on Solar Electric Generating Station II, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration.

SEGS II is one of the nine Solar Electric Generating Station plants in California’s Mojave Desert. The combined electric generating capacity of these plants, which use parabolic trough technology, is more than 350 megawatts. The plants operate as Qualifying Facility Independent Power Producers under the Public Utility Regulatory Policies Act, with a special Standard Offer 2 type of power purchase agreement to Southern California Edison.
Status Date

Background

Technology
Parabolic Trough
Status
Currently Non-Operational
Location

Daggett, CA
United States

County
San Bernardino
Region
Mojave Desert
Lat/Long Location
34°
51'
47.00"
North
116°
49'
37.00"
West
Solar Resource
2725 kWh/m2/yr
Source of Solar Resource
National Solar Resource Data Base
Start Production Date
Project Type
PURPA Qualifying Facility Independent Power Producer, with special Standard Offer 2 (SO-2) type power purchase agreement to Southern California Edison
Incentives
Accelerated depreciation
Federal and state investment incentive
Solar property tax exclusion

Participants

Developer(s)
Luz
Operator(s)
Cogentrix
Generation Offtaker(s)
Southern California Edison

Plant Configuration

Solar Field

Solar-Field Aperture Area
190,338 m²
SCA Description 1
Parabolic trough SCA
SCA Manufacturer (Model)
Luz (LS-1)
Solar-Field Outlet Temp
316ºC

Power Block

Turbine Capacity (Gross)
33 MW
Turbine Capacity (Net)
30 MW
Power Cycle Pressure
40 bar
Turbine Efficiency
29.40% @ full load (Percentage)
Fossil Backup Type
Natural gas
Photo with an aerial perspective looking perpendicular to numerous rows of parabolic troughs. In the far distance is the silhouette of mountains.

Project Overview

Project Name: Solar Electric Generating Station II (SEGS II)
Location: United States
(CA)
Location: Daggett (CA)
Owner(s) (%): Cogentrix (100%)
Technology: Parabolic Trough
Turbine Capacity (Net):
30 MW
Turbine Capacity (Gross):
33 MW
Status: Currently Non-Operational
Start Year: 1985

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