Graben nuclear power plant — Switzerland

Graben nuclear power plant is a 1,140 MW nuclear power station in Bern, Switzerland. It ranks #3 of 174 Switzerland power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 29.9% of Switzerland's electricity; the national grid averages 39 gCO₂/kWh (97.7% low-carbon) (2025).

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

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 1,140 MW, Graben nuclear power plant is well above the median nuclear plant in Switzerland (950 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 #2 largest nuclear power plant of 7 in Switzerland by capacity.

Switzerland has 7 nuclear power plants in this dataset, together about 5,582 MW of capacity.

Nearby power plants

• Bannwil · Hydro · 26.8 MW · Bern
• Wynau · Hydro · 12 MW · Bern
• Neuendorf · Solar · 5.2 MW · Solothurn
• Kernkraftwerk Gösgen · Nuclear · 1,060 MW · Solothurn
• Aarau Stadt · Hydro · 16.9 MW · Aargau
• Neuewelt · Hydro · 1.1 MW · Basel-Landschaft

Location

Coordinates 47.2234, 7.72501 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions