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Solar Electric Generating Station VIII

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This page provides information on Solar Electric Generating Station VIII, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration. SEGS VIII 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. SEGS VIII is the largest individual trough plant (along with SEGS IX).

                                  

Project Overview
Project Name:Solar Electric Generating Station VIII (SEGS VIII)
Country:United States
Location:Harper Dry Lake, California (Mojave Desert)
Owner(s):NextEra (50%)
Technology:Parabolic trough
Turbine Capacity:Net: 80.0 MW Gross: 89.0 MW
Status:Operational
Start Year:1989

                                                                                                                                        

Background
Technology:Parabolic trough
Status:Operational
Country:United States
City:Harper Dry Lake
State:California
County:San Bernardino
Region:Mojave Desert
Lat/Long Location:35°1′ 54.0″ North, 117°20′ 53.0″ West
Solar Resource:2,725 kWh/m2/yr
Source of Solar Resource:National Solar Resource Data Base
Start Production:1989/12/1
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
Owner(s) (%):NextEra (50%)
Operator(s):NextEra
Generation Offtaker(s):Southern California Edison
SCA Manufacturer (Model):Luz (LS-3)
HCE Manufacturer (Model):Solel Solar Systems (Solel UVAC)
Solar Field
Solar-Field Aperture Area:464,340 m²
SCA Description:Parabolic trough SCA
HCE Type (Length):Evacuated (4 m)
Heat-Transfer Fluid Type:Therminol
Solar-Field Outlet Temp:390°C
Power Block
Turbine Capacity (Gross):89.0 MW
Turbine Capacity (Net):80.0 MW
Power Cycle Pressure:100.0 bar
Turbine Efficiency:37.6% @ full load
Fossil Backup Type:Natural gas


*Reference from NREL

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