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

Background

Technology
Power Tower
Status
Operational
Location

Tonopah, NV
United States

County
Nye
Region
Northern Nevada, northwest of Tonopah
Lat/Long Location
38°
14'
20.00"
North
117°
21'
48.00"
West
Land Area
1600 acres
Solar Resource
2685 kWh/m2/yr
Source of Solar Resource
NREL Solar Power Prospector
Electricity Generation
500,000 MWh/yr (Expected)
Key References
Break Ground Date
Start Production Date
PPA/Tariff Date
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
EPC Contractor
ACS Cobra
Operator(s)
SolarReserve's Tonopah Solar Energy, LLC
Generation Offtaker(s)
NV Energy

Plant Configuration

Solar Field

Heat-Transfer Fluid Type
Molten salt
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
Receiver Inlet Temperature
550 F
Receiver Outlet Temperature
1050 F

Power Block

Turbine Capacity (Gross)
110 MW
Turbine Capacity (Net)
110 MW
Turbine Manufacturer
Alstom
Output Type
Steam Rankine
Power Cycle Pressure
115 bar
Cooling Method
Hybrid
Fossil Backup Type
None

Thermal Storage

Storage Type
2-tank direct
Storage Capacity
10 hours
Storage Description
Thermal energy storage achieved by raising salt temperature from 550 to 1050 F. Thermal storage efficiency is 99%

Project Overview

Project Name: Crescent Dunes Solar Energy Project (Tonopah)
Location: United States
(NV)
Location: Tonopah (NV)
Owner(s) (%): SolarReserve's Tonopah Solar Energy, LLC (100%)
Technology: Power Tower
Turbine Capacity (Net):
110 MW
Turbine Capacity (Gross):
110 MW
Status: Operational
Start Year: 2015

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