Extresol 1

Group

General Info

Owner/s:

Cobra

Technology:

Parabolic trough

Country:

Spain

Status:

Operational

Purpose:

Commercial

Usage:

Electricity

Power:

50.00 MW

Construction start date:

July 2007

Start date:

September, 2009

Location:

Torre de Miguel Sesmero, Badajoz

Generation:

170.00 GWh

Land area:

200 hectares

Technology

Solar field

Solar Collector Assemblies - Trough:

SENER SENERTrough

Mirrors / Reflective surface:

Flabeg RP3

Number of SCAs:

624

Number of loops:

156

Number of SCAs per loop:

4

Number of modules per SCA:

12

SCA aperture area:

817 m²

SCA length:

144 m

Reflecting area:

510 120 m²

Heat Collector Element (Tube):

Schott PTR70

Number of HCEs:

22464

Receiver type:

Evacuated

Heat Transfer Fluid:

Dowtherm A

HTF Temp in:

293ºC

HTF Temp out:

393ºC

Power block

Storage Y/N:

Yes

Storage type:

two tank indirect - molten salts

Storage:

7.50 Hours

Power cycle:

Steam Rankine

Power cycle pressure:

100 bar

Turbine:

Siemens SST700

Turbine efficiency:

38.1% at full load

Cooling:

Wet

Cooling method:

Cooling tower

Power (gross):

50.00 MW

Power (net):

49.90 MW

Annual Solar-to-Electricity Efficiency (Gross):

16%

Backup:

Yes

Backup type:

Natural gas for HTF boilers - 15% max

Companies involved

Project developer:

Cobra

EPC:

Cobra
SENER

O&M:

Cobra

Key components suppliers:

Siemens
Schott
Flabeg

Suppliers details:

SENER (parabolic troughs)

Siemens (Turbine)

Schott (HCE receiver tube)

Flabeg (Mirrors)

Lointek (Heat exchangers and steam generation)

Flowserve (control valves)

ABB (Power automation for solar field and power block)

Tamoin (Installation and assembly of power block)

BValve (Valves)

Dow Chemicals (HTF)

Wika (pressure and temperature measurement)

AKO (Electric tracing)

Smit

Tedagua (Water treatment)

Saidi

CCi (Valves)

Dimasa (Polyester storage tanks)

GEA Iberica (Water-cooled Vacuum Steam Surface Condensers)

Ideas en Metal (Metal structures for solar field)

Magline (magnetic measuring technology for position detection parabolic troughs)

Samson (Control valves)

Sindus (Coolig towers)

Talleres Vaca (Boiling works)

Rosni (Drive pylons)

Pam Saint-Gobain (Water pipes)

Comeval (Valves)

Imasa (Manufacturing, assembling and insulation for HTF pipes)

Epsilon Tracing (Electric tracing)

Schubert & Salzer - BVALVE (Valves)

Laitu solar (Troughs cleaning and/or pressure testing)

MTS (valves)

Energia Gigjon (Metal sttructures)

Reyco (Valves calibration and/or other valves related works)

Flexim (Flowmeter for HTF and/or Molten Salt)

Esindus (Cooling towers)

Ensival Moret (Pumps)

Socioeconomics

Generation Offtaker:

Endesa

PPA/Tariff:

Spain RD661/2007 Feed-in-Tariff - 25 years - 27 eurocent per kWh

Construction Employment:

600 jobs-year

O&M employment:

40

Other

Solar resource:

2 165 kWh/m2/yr

Solar resource source:

Meteo station

General comments:

After the successful construction of Andasol, Cobra began the construction of Extresol complex, a set of three plants 50 MW each

Documents and links:

Attachment	Size
Extresol 1 fact sheet (Spanish)	2.59 MB
Cobra PR on Extresol inauguration (Spanish)	281.06 KB
Environmental Impact Statement (Spanish)	56.86 KB
Cobra PR on construction start of Extresol 1	30.65 KB

Images:

Videos:

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