KNK II nuclear power plant is a 21 MW nuclear power plant in Baden-Württemberg, Germany. It is operated by Karlsruhe Institute For Technology [100%]. Based on its capacity (estimated), it can supply roughly 47k homes (estimated). It ranks #558 of 1,442 Germany power plants by installed capacity. Commissioned in 1979, it is around 47 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 0.0% of Germany's electricity; the national grid averages 330 gCO₂/kWh (59.1% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEM_nuc_knkii_germa.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.
capacity: GEM GNPT; fuel: GEM GNPT
At 21 MW, KNK II nuclear power plant is below the median nuclear plant in Germany (1,302 MW). Technically it is described as fast breeder reactor. 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.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Karlsruhe Institute For Technology [100%].
This nuclear plant uses heat from nuclear fission to raise steam for a turbine-generator. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 49.1°N — which shapes how much energy it can produce and how its output varies through the year.
Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.
Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
The #23 largest nuclear power plant of 25 in Germany by capacity.
Germany has 25 nuclear power plants in this dataset, together about 26,511 MW of capacity.
Coordinates 49.0967, 8.4398 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
KNK II nuclear power plant is a 21 MW nuclear power plant in Baden-Württemberg, Germany, commissioned in 1979.
Its output is enough to supply roughly 47,304 homes (estimated).
KNK II nuclear power plant is operated by Karlsruhe Institute For Technology [100%].
