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Crescent Dunes Solar Energy Project

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This page provides information on Crescent Dunes Solar Energy Project, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration.

                                  

Project Overview
Project Name:Crescent Dunes Solar Energy Project (Tonopah)
Country:United States
Location:Tonopah, Nevada (Northern Nevada, northwest of Tonopah)
Owner(s):SolarReserve's Tonopah Solar Energy, LLC (100%)
Technology:Power tower
Turbine Capacity:Net: 110.0 MW Gross: 110.0 MW
Status:Operational
Start Year:2015

                                                                                                                                                                                                

Background
Technology:Power tower
Status:Operational
Country:United States
City:Tonopah
State:Nevada
County:Nye
Region:Northern Nevada, northwest of Tonopah
Lat/Long Location:38°14′ 20.0″ North, 117°21′ 48.0″ West
Land Area:1,600 acres
Solar Resource:2,685 kWh/m2/yr
Source of Solar Resource:NREL Solar Power Prospector
Electricity Generation:500,000 MWh/yr (Expected)
Break Ground:2011/9/1
Start Production:2015/11/1
PPA/Tariff Date:2009/12/22
PPA/Tariff Rate:0.135 US$ per kWh
PPA/Tariff Period:25 years
Project Type:Commercial
Incentives:$737 million DOE loan guarantee
Participants
Developer(s):SolarReserve, LLC
Owner(s) (%):SolarReserve's Tonopah Solar Energy, LLC (100%)
EPC Contractor:ACS Cobra
Operator(s):SolarReserve's Tonopah Solar Energy, LLC
Generation Offtaker(s):NV Energy
Turbine Manufacturer:Alstom
Solar Field
Heliostat Solar-Field  Aperture Area:1,197,148 m²
# of Heliostats:10,347
Heliostat Aperture Area:115.7 m²
Tower Height:640 ft
Receiver Type:External - cylindrical
Receiver Panel Height (for  external receiver):100 ft
Heat-Transfer Fluid Type:Molten salt
Receiver Inlet Temp:550F
Receiver Outlet Temp:1050F
Power Block
Turbine Capacity (Gross):110.0 MW
Turbine Capacity (Net):110.0 MW
Output Type:Steam Rankine
Power Cycle Pressure:115.0 bar
Cooling Method:Hybrid
Fossil Backup Type:None
Thermal Storage
Storage Type:2-tank direct
Storage Capacity:10 hours
Thermal Storage Description:Thermal energy storage achieved  by raising salt temperature from 550 to 1050 F. Thermal storage efficiency is  99%


*Reference from NREL

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