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Gemasolar Thermosolar Plant

This page provides information on Gemasolar Thermosolar Plant, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration. Gemasolar is the first high-temperature solar receiver with molten salt, which provides 15 hours of thermal storage and an annual capacity factor of about 55%.

Status Date: March 20, 2017
Computer-generated image of circular field of several thousand flat mirrors separated into curved rows and oriented such that they reflect sunlight onto the top of a tower at the center of the circle.  Several buildings are indicated in the foreground, and the background shows flat fields with groves of trees.
Project Overview
Project Name: Gemasolar Thermosolar Plant (Gemasolar)
Country: Spain
Location: Fuentes de Andalucía
(Andalucía (Sevilla))
Owner(s): MASDAR (40%)
Sener (60%)
Technology: Power tower
Turbine Capacity: Net: 19.9 MW Gross: 19.9 MW
Status: Operational
Start Year: 2011

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Technology: Power tower
Status: Operational
Country: Spain
City: Fuentes de Andalucía
Region: Andalucía (Sevilla)
Lat/Long Location: 37°33′ 44.95″ North, 5°19′ 49.39″ West
Land Area: 195 hectares
Solar Resource: 2,100 kWh/m2/yr
Source of Solar Resource: Sener
Electricity Generation: 80,000 MWh/yr
Contact(s): Juan Ignacio Burgaleta
Company: Sener
Break Ground: February 2009
Start Production: April 2011
Cost (approx): 230,000,000 Euro
Construction Job-Years: 800
Annual O&M Jobs: 45


Developer(s): Torresol Energy
Owner(s) (%): MASDAR (40%)
Sener (60%)
EPC Contractor: UTE C.T. Solar Tres
Operator(s): Torresol O&M

Plant Configuration

Solar Field

Heliostat Solar-Field Aperture Area: 304,750 m²
# of Heliostats: 2,650
Heliostat Aperture Area: 120.0 m²
Heliostat Manufacturer: Sener
Heliostat Description: Sheet metal stamped facet
Heliostat Drive Manufacturer: Sener
Tower Height: 140 m
Receiver Manufacturer: Sener
Heat-Transfer Fluid Type: Molten salts (sodium and potassium nitrates)
Receiver Inlet Temp: 290C
Receiver Outlet Temp: 565C
Receiver Temp. Difference: 275C

Power Block

Turbine Capacity (Gross): 19.9 MW
Turbine Capacity (Net): 19.9 MW
Output Type: Steam Rankine
Cooling Method: Wet cooling

Thermal Storage

Storage Type: 2-tank direct
Storage Capacity: 15 hour(s)
Thermal Storage Description: One cold-salts tank (290ºC) from where salts are pumped to the tower receiver and heated up to 565ºC, to be stored in one hot-salts tank (565ºC). Annual equivalent hours = 5,000.