Montalto di Castro nuclear power plant — Italy

Montalto di Castro nuclear power plant is a 2,018 MW nuclear power station in Viterbo, Italy. It ranks #4 of 489 Italy power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 0.0% of Italy's electricity; the national grid averages 285 gCO₂/kWh (48.8% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEM_nuc_montaltodicastro_italy.

Data provenance

Source of the capacity and fuel values:

capacity: GEM Global Nuclear Power Tracker September 2025 unit-status sum (cancelled); fuel: GEM GNPT

In context: how this plant compares

At 2,018 MW, Montalto di Castro nuclear power plant is well above the median nuclear plant in Italy (270 MW). Technically it is described as boiling water reactor. Its current lifecycle status is “Cancelled” — so it is not yet, or no longer, generating at full output. Nuclear plants split uranium to raise steam with no direct CO₂; they run as steady baseload with very high capacity factors and the longest operating lifetimes of any thermal plant.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

How it compares & nearby plants

The #1 largest nuclear power plant of 5 in Italy by capacity.

Italy has 5 nuclear power plants in this dataset, together about 3,490 MW of capacity.

Nearby power plants

• MONTALTO (Alessandro Volta) · Gas · 3,446 MW · Latium
• ORSA MAGGIORE · Solar · 15 MW · Latium
• MdC ENEL · Solar · 6 MW · Latium
• MdC A · Solar · 8 MW · Latium
• MdC Octopus SW · Solar · 14 MW · Latium
• MdC Octopus · Solar · 57.4 MW · Latium

Location

Coordinates 42.3594, 11.5301 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions