Archimede

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.
Status Date

Background

Technology
Parabolic Trough
Status
Operational
Location

Priolo Gargallo
Italy

Region
Sicily
Lat/Long Location
37°
8'
3.12"
North
15°
13'
0.15"
East
Land Area
8 hectares
Solar Resource
1936 kWh/m2/yr
Source of Solar Resource
ENEL
Electricity Generation
9,200 MWh/yr Expected/Planned
Break Ground Date
Start Production Date

Participants

Developer(s)
ENEL
Operator(s)
ENEL

Plant Configuration

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
SCA Manufacturer (Model)
COMES (ENEA)
Mirror Manufacturer
Ronda Reflex
HCE Manufacturer
Archimede Solar Energy
# of Heat Collector Elements (HCEs)
1,296
Heat-Transfer Fluid Type
Molten salt (60% NaNO?, 40% KNO?)
Solar-Field Inlet Temp
290ºC
Solar-Field Outlet Temp
550ºC
Solar-Field Temp Difference
260ºC

Power Block

Turbine Capacity (Gross)
5 MW
Turbine Capacity (Net)
4.72 MW
Turbine Manufacturer
Tosi
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
39.30% @ full load (Percentage)
Gross Annual Solar-to-Electricity Efficiency (Percentage)
16%

Thermal Storage

Storage Type
2-tank direct
Storage Capacity
8 hour(s)
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.

Project Overview

Project Name: Archimede
Location: Italy
Owner(s) (%): ENEL (100%)
Technology: Parabolic Trough
Turbine Capacity (Net):
4.72 MW
Turbine Capacity (Gross):
5 MW
Status: Operational
Start Year: 2010

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