Saguaro Power Plant

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

Background

Technology
Parabolic Trough
Status
Currently Non-Operational
Location

Red Rock, AZ
United States

County
Pinal County
Region
Southwest USA
Lat/Long Location
32°
32'
52.00"
North
111°
17'
34.00"
West
Land Area
16 acres
Solar Resource
2636 kWh/m2/yr
Source of Solar Resource
NREL
Electricity Generation
2,000 MWh/yr Expected/Planned
Break Ground Date
Start Production Date
Cost (approx)
6,000,000 USD
Project Type
Production

Participants

Developer(s)
Arizona Public Service
EPC Contractor
Solargenix
Operator(s)
Arizona Public Service
Generation Offtaker(s)
Arizona Public Service

Plant Configuration

Solar Field

Solar-Field Aperture Area
10,340 m²
SCA Drive Manufacturer
Parker-Hannefin
# of Solar Collector Assemblies (SCAs)
24
# of Loops
3
# of SCAs per Loop
8
SCA Length
97 m
# of Modules per SCA
12
SCA Description 1
Second-generation parabolic trough collectors
SCA Manufacturer (Model)
Starnet (LS-2)
Mirror Manufacturer
Flabeg
HCE Manufacturer (Model)
Schott Glass (Schott PTR70)
# of Heat Collector Elements (HCEs)
528
HCE Type
Evacuated
HCE Length
4m
Heat-Transfer Fluid Type
Xceltherm 600 (solar field); n-pentane (ORC working fluid)
Solar-Field Inlet Temp
248ºF
Solar-Field Outlet Temp
572ºF
Solar-Field Temp Difference
324ºF
Heat Transfer Fluid Company
Radco Industries

Power Block

Turbine Capacity (Gross)
1.16 MW
Turbine Capacity (Net)
1 MW
Turbine Manufacturer
Ormat (Israel)
Output Type
Organic Rankine
Power Cycle Pressure
323 psi
Cooling Method
Wet cooling
Turbine Efficiency
20.70% @ full load (Percentage)
Design-Point Solar-to-Electricity Efficiency (Percentage)
12.10%
Design-Point Conditions
Nominal ambient temp dry=80°F, relative humidity=30%, wet-bulb temp=60°F
Gross Annual Solar-to-Electricity Efficiency (Percentage)
8%
Fossil Backup Type
None

Thermal Storage

Storage Type
None

Project Overview

Project Name: Saguaro Power Plant
Location: United States
(AZ)
Location: Red Rock (AZ)
Owner(s) (%): Arizona Public Service (100%)
Technology: Parabolic Trough
Turbine Capacity (Net):
1 MW
Turbine Capacity (Gross):
1.16 MW
Status: Currently Non-Operational
Start Year: 2006

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