Arcosol 50 (Valle I) CSP Project

This page provides information on Arcosol 50 (Valle I) CSP project, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration.

Project Overview

Power Station: Arcosol 50 (Valle I)
Location: San José del Valle
Andalusia Spain
Owners (%): Torresol (Sener & Masdar)
Technology Parabolic Trough
Solar Resource: 2007
Nominal Capacity: 50 MW
Status Operational
Start Year: 2011

Status Date

Status Date


Break Ground Date 2009
Expected Generation (GWh/year) 175
Lat/Long Location 36.661,-5.833
Total Power Station Land Area (km²) 2.3


Developer Torresol
Spain, UAE
Operator Torresol
Construction Job Years 900
Annual Operations Jobs 45


Total Construction Cost (2011) € 270.00 million
Total Cost USD (2020) $420.48 million
Specific Cost/kW USD (2020) $ 8409.6
LCOE USD/kWh (2020) $ 0.21
Levelised cost of electricity with 5% weighted average cost of capital and a 25 year payback period, capacity dependent O&M (1.5% of investment cost per year), deflated from Year_operational using the Worldbank's GDP deflator; if station under development or construction then not deflated (assumed cost year 2020)
Remuneration EUR/kWh 0.27
Remuneration Start Year 2011
Remuneration USD/kWh Deflated (2020) 0.42
PPA or Tariff Period (Years) 25
Support Scheme Type FIT

Plant Configuration

Solar Field

Solar Field Aperture Area (m²) 510120
# of Solar Collector Assemblies (SCAs) 624
# of Loops 156
# of SCAs per Loop 4
SCA Aperture Area (m²) 817
Collector/Heliostat Manufacturer Sener
Collector/Heliostat Engineering or IP Owner Sener
Collector/Heliostat Model SenerTrough
Mirror Manufacturer Flabeg
Mirror Model RP3

Solar Field (Receiver)

Receiver Working Fluid Biphenyl/Diphenyl oxide
Receiver Working Fluid Category Thermal oil/organics
Solar Field or Receiver Inlet Temperture (C) 293°C
Solar Field or Receiver Outlet Temperture (C) 393°C
Receiver Manufacturer Sener

Power Block

Nominal Turbine or Power Cycle Capacity 50 MW
Power Cycle Steam Rankine
Power Cycle Pressure (Bar) 100
Turbine Efficiency Percent 38.1
Cooling Type Wet

Thermal Energy Storage

Storage Type 2-tank indirect
Storage Capacity (Hours) 7.5
Storage Description 28,500 tons of molten salt. 60% sodium nitrate, 40% potassium nitrate.

The project data on these pages and in the downloadable CSV file is copyright (©) Institute for Advanced Sustainability Studies (IASS) and others 2022; data by Lilliestam@IASS, Thonig@IASS, Zang@CAS, Gilmanova@CAS and others. The data is licensed under a Creative Commons Attribution 4.0 International License.”