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Crescent Dunes Solar Energy Project

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.

Status Date: March 9, 2016
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

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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)
Contact(s): Tom Georgis; Rob Howe
Company: SolarReserve
Key References: Web site
Break Ground: September 2011
Start Production: November 2015
PPA/Tariff Date: December 22, 2009
PPA/Tariff Rate: 0.135 US$ per kWh
PPA/Tariff Period: 25 years
Project Type: Commercial
Incentives: $737 million DOE loan guarantee


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

Plant Configuration

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
Turbine Manufacturer: Alstom
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%