Extresol 1 CSP Project

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

Project Overview

Power Station: Extresol 1
Location: Torre de Miguel Sesmero
Extremadura Spain
Owners (%): FCC Energy
Technology Parabolic Trough
Solar Resource: 2096
Nominal Capacity: 50 MW
Status Operational
Start Year: 2010

Status Date

Status Date October 21, 2022


Break Ground Date 2009
Expected Generation (GWh/year) 158
Lat/Long Location 38.65,-6.733
Total Power Station Land Area (km²) 2


Developer Cobra
EPC Cobra, Sener
Operator Cobra O&M
Electricity Generation Offtaker Endesa
Construction Job Years 600
Annual Operations Jobs 40


Total Construction Cost (2010) € 300.00 million
Total Cost USD (2020) $454.48 million
Specific Cost/kW USD (2020) $ 9089.6
LCOE USD/kWh (2020) $ 0.25
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 2010
Remuneration USD/kWh Deflated (2020) 0.41
PPA or Tariff Period (Years) 25
Support Scheme Type FIT
Policy Support Scheme Real Decreto 661/2007

Plant Configuration

Solar Field

Solar Field Aperture Area (m²) 510120
# of Solar Collector Assemblies (SCAs) 624
# of Loops 156
# of SCAs per Loop 4
# of Modules per SCA 12
SCA Aperture Area (m²) 817
SCA Length (m) 144
Collector/Heliostat Manufacturer UTE CT Extresol-1: Cobra (80%) and Sener (20%
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
# of Heat Collector Elements (HCEs) 22464
Solar Field or Receiver Inlet Temperture (C) 293°C
Solar Field or Receiver Outlet Temperture (C) 393°C
Receiver Manufacturer Schott
Receiver Model PTR 70

Power Block

Nominal Turbine or Power Cycle Capacity 50 MW
Turbine Manufacturer Siemens
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. 1,010 MWh. Tanks are 14 m high and 36 m in diameter.

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.”