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Saguaro Power Plant

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

                                  

Project Overview
Project Name:Saguaro Power Plant
Country:United States
Location:Red Rock, Arizona (Southwest USA)
Owner(s):Arizona Public Service (100%)
Technology:Parabolic trough
Turbine Capacity:Net: 1.0 MW Gross: 1.16 MW
Status:Operational
Start Year:2006

                                                                                                                                                                                                                            

Background
Technology:Parabolic trough
Status:Operational
Country:United States
City:Red Rock
State:Arizona
County:Pinal County
Region:Southwest USA
Lat/Long Location:32°32′ 52.0″ North, 111°17′ 34.0″ West
Land Area:16 acres
Solar Resource:2,636 kWh/m2/yr
Source of Solar Resource:NREL
Electricity Generation:2,000 MWh/yr (Expected/Planned)
Break Ground:2004/6/1
Start Production:2006/1/1
Cost (approx):6,000,000 USD
Project Type:Production
Participants
Developer(s):Arizona Public Service
Owner(s) (%):Arizona Public Service (100%)
EPC Contractor:Solargenix
Operator(s):Arizona Public Service
Generation Offtaker(s):Arizona Public Service
SCA Manufacturer (Model):Starnet (LS-2)
SCA Drive Manufacturer:Parker-Hannefin
Mirror Manufacturer:Flabeg
HCE Manufacturer (Model):Schott Glass (Schott PTR70)
Turbine Manufacturer:Ormat (Israel)
Solar Field
Solar-Field Aperture Area:10,340 m²
# of Solar Collector  Assemblies (SCAs):24
# of Loops:3
# of SCAs per Loop:8
SCA Length:97 m
# of Modules per SCA:12 and 8
SCA Description:Second-generation parabolic trough collectors
# of Heat Collector Elements  (HCEs):528
HCE Type (Length):Evacuated (4 m)
Heat-Transfer Fluid Type:Xceltherm 600 (solar field); n-pentane (ORC working fluid)
Solar-Field Inlet Temp:248°F
Solar-Field Outlet Temp:572°F
Solar-Field Temp Difference:324°F
Power Block
Turbine Capacity (Gross):1.16 MW
Turbine Capacity (Net):1.0 MW
Output Type:Organic Rankine
Power Cycle Pressure:323.0 psi
Cooling Method:Wet cooling
Turbine Efficiency:20.7% @ full load
Design-Point  Solar-to-Electricity Efficiency:12.10%
Design-Point Conditions:Nominal ambient temp dry=80°F,  relative humidity=30%, wet-bulb temp=60°F
Annual Solar-to-Electricity  Efficiency (Gross):7.50%
Fossil Backup Type:None
Thermal Storage
Storage Type:None


*Reference from NREL

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