World Power Plants

Centrale di Valle Secolo120 MW Geothermal

GeothermalRenewableVerified: Feb 2026

Centrale di Valle Secolo is a 120 MW geothermal power plant located in Italy. It is the only geothermal plant of its size in the country and contributes to Italy's renewable energy portfolio. This facility ranks as the 1st largest geothermal plant in Italy. With a capacity of 120 MW, it represents 12.28% of the country's total geothermal capacity of 977 MW. Italy has 34 geothermal plants with a combined capacity of 977 MW. As the largest geothermal plant, Centrale di Valle Secolo stands alone in its capacity. Geothermal energy is a significant renewable resource in Italy, providing about 1% of the total electricity generation. The country utilizes geothermal energy primarily in regions with volcanic activity, such as Tuscany. The plant is located near the town of Larderello, approximately 80 km southwest of Florence.

Capacity
120 MW
Commissioning Year
2014

12 years old

Owner
Enel Green Power
Location
43.2366°, 10.8673°

Italy, Europe

Context & rankings
  • 177. largest of 542 plants in Italy
  • #9,242 worldwide by installed capacity
  • #32 of 215 Geothermal plants worldwide
  • 0.09% of the installed capacity of Italy
Age & fleet comparison

12 years in operation

Geothermal fleet average: 26.9 years

Operator portfolio

Enel Green Power operates 360 plants totalling 23,281 MW

Regional density

46 plants within 100 km, 5,496 MW combined

Nearest plant: NUOVA LARDERELLO (1.7 km)

Data provenance

Location

Coordinates:: 43.236584, 10.867307
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Centrale di Valle Secolo is a geothermal power plant producing approximately 841 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~38 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Geothermal
Energy Source
Renewable
Country
Italy
Continent
Europe
Data Source
Global Power Plant Database

ItalyEnergy Profile

542
Total Plants
131.1 GW
Total Capacity
GasHydroCoalOil
Top Fuels

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