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Extresol-1

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

                                  

Project Overview
Project Name:Extresol-1 (EX-1)
Country:Spain
Location:Torre de Miguel Sesmero (Badajoz)
Owner(s):ACS/Cobra Group (100%)
Technology:Parabolic trough
Turbine Capacity:Gross: 50.0 MW
Status:Operational
Start Year:2010

                                                                                                                                                                                                                                        

Background
Technology:Parabolic trough
Status:Operational
Country:Spain
City:Torre de Miguel Sesmero
Region:Badajoz
Lat/Long Location:38°39′ North, 6°44′ West
Land Area:200 hectares
Solar Resource:2,168 kWh/m2/yr
Source of Solar Resource:Meteo Station
Electricity Generation:158,000 MWh/yr (Expected/Planned)
Break Ground:2009/10/3
Start Production:2010/1/1
Construction Job-Years:600
Annual O&M Jobs:40
PPA/Tariff Date:2010/1/1
PPA/Tariff Type:Real Decreto 661/2007
PPA/Tariff Rate:27.0 Euro cents per kWh
PPA/Tariff Period:25 years
Project Type:Commercial
Participants
Developer(s):ACS/Cobra Group
Owner(s) (%):ACS/Cobra Group (100%)
EPC Contractor:UTE CT Extresol-1: Cobra (80%) and Sener (20%)
Operator(s):Cobra O&M
Generation Offtaker(s):Endesa
SCA Manufacturer (Model):UTE CT Extresol-1 (SENERTROUGH)
Mirror Manufacturer (Model):Flabeg (RP3)
HCE Manufacturer (Model):Schott (PTR 70)
Turbine Manufacturer:Siemens (Germany)
Solar Field
Solar-Field Aperture Area:510,120 m²
# of Solar Collector  Assemblies (SCAs):624
# of Loops:156
# of SCAs per Loop:4
SCA Aperture Area:817 m²
SCA Length:144 m
# of Modules per SCA:12
# of Heat Collector Elements  (HCEs):22,464
HCE Type (Length):Evacuated (4 m)
Heat-Transfer Fluid Type:Diphenyl/Biphenyl oxide
Solar-Field Inlet Temp:293°C
Solar-Field Outlet Temp:393°C
Solar-Field Temp Difference:100°C
Power Block
Turbine Capacity (Gross):50.0 MW
Output Type:Steam Rankine
Power Cycle Pressure:100.0 bar
Cooling Method:Wet cooling
Cooling Method Description:Cooling towers
Turbine Efficiency:38.1% @ full load
Annual Solar-to-Electricity  Efficiency (Gross):16%
Fossil Backup Type:HTF heater
Backup Percentage:12%
Thermal Storage
Storage Type:2-tank indirect
Storage Capacity:7.5 hour(s)
Thermal 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.


*Reference from NREL

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