Astexol II CSP Project

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

Project Overview

Power Station: Astexol II
Location: Olivenza
Extremadura Spain
Owners (%): Elcnor, Aries, ABM Amro
Technology Parabolic Trough
Solar Resource: 2055
Nominal Capacity: 50 MW
Status Operational
Start Year: 2012

Status Date

Status Date


Break Ground Date 2010
Expected Generation (GWh/year) 170
Lat/Long Location 38.81,-7.053
Total Power Station Land Area (km²) 1.6


Developer Elecnor, Aries
EPC Elecnor
Construction Job Years 500
Annual Operations Jobs 50


Total Construction Cost (2012) € 225.00 million
Total Cost USD (2020) $317.63 million
Specific Cost/kW USD (2020) $ 6352.5
LCOE USD/kWh (2020) $ 0.16
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 2012
Remuneration USD/kWh Deflated (2020) 0.38
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) 149
Collector/Heliostat Manufacturer Flagsol
Collector/Heliostat Engineering or IP Owner Flagsol, SBP
Collector/Heliostat Model SKAL ET-150

Solar Field (Receiver)

Receiver Working Fluid Thermal Oil
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

Power Block

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

Thermal Energy Storage

Storage Type 2-tank indirect
Storage Capacity (Hours) 8
Storage Description 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.”