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Aste 1A

This page provides information on Aste 1A, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration.

Status Date: August 9, 2017
Project Overview
Project Name: Aste 1A
Country: Spain
Location: Alcázar de San Juan
(Ciudad Real)
Owner(s): Elecnor/Aries/ABM AMRO (100%)
Technology: Parabolic trough
Turbine Capacity: Net: 50.0 MW Gross: 50.0 MW
Status: Operational
Start Year: 2012

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Technology: Parabolic trough
Status: Operational
Country: Spain
City: Alcázar de San Juan
Region: Ciudad Real
Lat/Long Location: 39°10′ 34.0″ North, 3°14′ 4.0″ West
Land Area: 180 hectares
Solar Resource: 2,019 kWh/m2/yr
Electricity Generation: 170,000 MWh/yr (Expected/Planned)
Contact(s): Ezequiel Ferrer
Start Production: January 2012
Construction Job-Years: 500
Annual O&M Jobs: 50
PPA/Tariff Type: Real Decreto 661/2007
PPA/Tariff Rate: 27.0 Euro cents per kWh
PPA/Tariff Period: 25 years
Project Type: Commercial


Developer(s): Elecnor/Aries/ABM AMRO
Owner(s) (%): Elecnor/Aries/ABM AMRO (100%)
EPC Contractor: Elecnor

Plant Configuration

Solar Field

Solar-Field Aperture Area: 510,120 m²
# of Solar Collector Assemblies (SCAs): 624
# of Loops: 156
# of SCAs per Loop: 4
SCA Aperture Area: 817 m²
SCA Length: 150 m
# of Modules per SCA: 12
SCA Manufacturer (Model): Sener (SenerTrough)
Mirror Manufacturer (Model): Flabeg (RP3)
# of Heat Collector Elements (HCEs): 22,464
HCE Manufacturer (Model): Siemens (UVAC 2010)
Heat-Transfer Fluid Type: Dowtherm A
Solar-Field Inlet Temp: 293°C
Solar-Field Outlet Temp: 393°C
Solar-Field Temp Difference: 100°C

Power Block

Turbine Capacity (Gross): 50.0 MW
Turbine Capacity (Net): 50.0 MW
Output Type: Steam Rankine
Power Cycle Pressure: 100.0 bar
Cooling Method: Wet cooling
Cooling Method Description: Cooling Towers
Annual Solar-to-Electricity Efficiency (Gross): 15%

Thermal Storage

Storage Type: 2-tank indirect
Storage Capacity: 8 Hours
Thermal Storage Description: Molten salts; 60% Sodium Nitrate, 40% Potassium Nitrate