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Archimede

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This page provides information on Archimede, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration. Archimede is a parabolic trough plant operating in Sicily, Italy. The plant produces steam (4.72-MW equivalent) sent to a combined-cycle steam turbine rated at 130 MW. This parabolic trough system is the first using molten salt as the heat-transfer fluid. A 2-tank direct system will provide 8 hours of thermal storage.

                                  

Project Overview
Project Name:Archimede
Country:Italy
Location:Priolo Gargallo (Sicily)
Owner(s):ENEL (100%)
Technology:Parabolic trough
Turbine Capacity:Net: 4.72 MW Gross: 5.0 MW
Status:Operational
Start Year:2010

                                                                                                                                                                                        

Background
Technology:Parabolic trough
Status:Operational
Country:Italy
City:Priolo Gargallo
Region:Sicily
Lat/Long Location:37°8′ 3.12″ North, 15°13′ 0.15″ East
Land Area:8 hectares
Solar Resource:1,936 kWh/m2/yr
Source of Solar Resource:ENEL
Electricity Generation:9,200 MWh/yr (Expected/Planned)
Break Ground:2008/7/21
Start Production:2010/7/14
Participants
Developer(s):ENEL
Owner(s) (%):ENEL (100%)
Operator(s):ENEL
SCA Manufacturer (Model):COMES (ENEA)
Mirror Manufacturer:Ronda Reflex
HCE Manufacturer:Archimede Solar Energy
Turbine Manufacturer:Tosi
Solar Field
Solar-Field Aperture Area:31,860 m²
# of Solar Collector  Assemblies (SCAs):54
# of Loops:9
# of SCAs per Loop:6
SCA Aperture Area:590 m²
SCA Length:100 m
# of Modules per SCA:8
# of Heat Collector Elements  (HCEs):1,296
Heat-Transfer Fluid Type:Molten salt (60% NaNO?, 40% KNO?)
Solar-Field Inlet Temp:290°C
Solar-Field Outlet Temp:550°C
Solar-Field Temp Difference:260°C
Power Block
Turbine Capacity (Gross):5.0 MW
Turbine Capacity (Net):4.72 MW
Turbine Description:The plant produces steam that is  sent to the CC steam turbine, rated at 130 MW; the 4.72 MW datum is the  calculated capacity added by the solar steam
Power Cycle Pressure:93.83 bar
Cooling Method:Wet cooling
Turbine Efficiency:39.3% @ full load
Annual Solar-to-Electricity  Efficiency (Gross):15.60%
Thermal Storage
Storage Type:2-tank direct
Storage Capacity:8 hour(s)
Thermal Storage Description:Total of 1,580 tons of molten  salt. 60% sodium nitrate, 40% potassium nitrate. Capacity 100 MWh (thermal).  Tanks are 6.5 m high and 13.5 m in diameter.


*Reference from NREL

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