Andasol 1 CSP Project

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

Project Overview

Power Station: Andasol 1
Location: Aldeire y La Calahorra
Andalusia Spain
Owners (%): ACS/Cobra 75%, 25% Solar Millennium
Technology Parabolic Trough
Solar Resource: 2260
Nominal Capacity: 50 MW
Status Operational
Start Year: 2008

Status Date

Status Date


Break Ground Date 2006
Expected Generation (GWh/year) 158
Lat/Long Location 37.231,-3.071
Total Power Station Land Area (km²) 2


Developer Solar Millennium
EPC Cobra 80%; Sener 20%
Operator Cobra O&M
Electricity Generation Offtaker Endesa
Construction Job Years 600
Annual Operations Jobs 40


Total Construction Cost (2008) € 310.00 million
Total Cost USD (2020) $530.93 million
Specific Cost/kW USD (2020) $ 10618.6
LCOE USD/kWh (2020) $ 0.29
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 2008
Remuneration USD/kWh Deflated (2020) 0.46
PPA or Tariff Period (Years) 25
Support Scheme Type FIT
Policy Support Scheme Real Decreto 661/2007
Concessional Funding or Other Support EIB €116.7 million; European Commission 5th Framework Programme grant €5 million

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 Andasol-1 (Flagsol)
Collector/Heliostat Engineering or IP Owner SBP, Solar Milenium
Collector/Heliostat Model SKAL ET-150
Mirror Manufacturer Flabeg
Mirror Model RP3

Solar Field (Receiver)

Receiver Working Fluid Biphenyl/Diphenyl oxide: Dowtherm A
Receiver Working Fluid Category Thermal oil/organics
Working Fluid Manufacturer Dow
# of Heat Collector Elements (HCEs) 11232
Solar Field or Receiver Inlet Temperture (C) 293°C
Solar Field or Receiver Outlet Temperture (C) 393°C
Receiver Manufacturer Schott; Solel
Germany; Israel
Receiver Model PTR 70; UVAC 2008

Power Block

Nominal Turbine or Power Cycle Capacity 50 MW
Turbine Manufacturer Siemens
Turbine Model SST-700
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.”