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La Risca

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

Status Date: March 20, 2017
Project Overview
Project Name: La Risca (Alvarado I)
Country: Spain
Location: Alvarado
Owner(s): Acciona Energía (100%)
Technology: Parabolic trough
Turbine Capacity: Net: 50.0 MW Gross: 50.0 MW
Status: Operational
Start Year: 2009

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Technology: Parabolic trough
Status: Operational
Country: Spain
City: Alvarado
Region: Badajoz
Lat/Long Location: 38°49′ 37.0″ North, 6°49′ 34.0″ West
Land Area: 135 hectares
Solar Resource: 2,174 kWh/m2/yr
Electricity Generation: 105,200 MWh/yr (Estimated)
Contact(s): Asun Padrós
Company: Acciona Energía
Break Ground: December 2007
Start Production: June 2009
Construction Job-Years: 350
Annual O&M Jobs: 31
PPA/Tariff Date: January 2010
PPA/Tariff Type: Real Decreto 661/2007
PPA/Tariff Rate: 27.0 Euro cents per kWh
PPA/Tariff Period: 25 years


Developer(s): Acciona Energía
Owner(s) (%): Acciona Energía (100%)
EPC Contractor: Acciona Energía, SerIDOM (IDOM Group)
Operator(s): Acciona Energía

Plant Configuration

Solar Field

Solar-Field Aperture Area: 352,854 m²
# of Solar Collector Assemblies (SCAs): 768
# of Loops: 96
# of SCAs per Loop: 8
SCA Manufacturer: Acciona Solar
Mirror Manufacturer (Model): Flabeg (RP2)
Heat-Transfer Fluid Type: Biphenyl/Diphenyl oxide
Solar-Field Inlet Temp: 293°C
Solar-Field Outlet Temp: 393°C

Power Block

Turbine Capacity (Gross): 50.0 MW
Turbine Capacity (Net): 50.0 MW
Turbine Manufacturer: Siemens SST-700
Output Type: Steam Rankine
Power Cycle Pressure: 100.0 bar
Cooling Method: Wet cooling

Thermal Storage

Storage Type: None