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Niederaussem power station

Coal power plant in North Rhine-Westphalia, Germany. Approximate location 50.993, 6.6685.

CoalNorth Rhine-WestphaliaGermanysubcriticalCO₂ measured

Niederaussem power station is a 3,430 MW coal power station in North Rhine-Westphalia, Germany. It is operated by RWE Power AG. Based on reported annual generation of 23,579 GWh, it can supply roughly 6.7 million homes. It ranks #2 of 1,442 Germany power plants by installed capacity. Commissioned in 1979, it is around 47 years old — long-established. Its annual emissions of 13,310,981 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 3.1 million cars driven for a year. In context, coal supplies about 20.6% of Germany's electricity; the national grid averages 330 gCO₂/kWh (59.1% low-carbon) (2025).

3,430Legacy source-record capacity
23,579GWh reported / yr
6,736,942homes powered
13,310,981t CO₂ / yr (EU ETS verified (EUTL 2023))
1979commissioned (~47 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1005979.

Data status

Known data

FacilityNiederaussem power station WRI
CountryGermany · North Rhine-Westphalia WRI
Coordinates50.993, 6.6685 WRI
FuelCoal WRI
MW installed capacity3,430 MW WRI source record; scope not independently normalised
OwnerRWE Power AG WRI
Commissioned1979 WRI
Technologysubcritical WRI
GWh reported / yr23,579 GWh/yr WRI
CO₂ emissions13,310,981 t CO₂/yr measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#2 of 1442 calculated
Fuel-specific rank in country#1 of 124 calculated
Capacity vs country/fuel peers11.58× · 296 MW median · 124 peers calculated
Homes-powered equivalent6,736,942 calculated from reported generation
Climate10.2°C · HDD 2,829 derived from coordinates
Environmental severityC2 · 24/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 2,278 MW for Niederaussem power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: A3_MAJOR_REVIEW_SCOPE_STATUS - recommended action: manual_scope_status_check - confidence: low_until_scope_verified. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

Data provenance

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: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 3,430 MW, Niederaussem power station is well above the median coal plant in Germany (296 MW). Technically it is described as subcritical. Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

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

13,310,981 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

3.1 millionpassenger cars driven for a year
1.7 millionhomes' yearly energy use
222 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per EU ETS verified (EUTL 2023) (measured for US EPA/EU ETS, modelled for Climate TRACE).

Reported generation trend

2015: 23,529 GWh20152016: 21,202 GWh20162017: 23,579 GWh201724k GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by RWE Power AG. All plants by this company →

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 51.0°N — which shapes how much energy it can produce and how its output varies through the year.

10.2°Cannual mean temp
2,829heating degree-days (base 18°C)
13cooling degree-days (base 18°C)
93 melevation

Monthly mean temperature

J: 3 °CJF: 3 °CFM: 6 °CMA: 9 °CAM: 14 °CMJ: 16 °CJJ: 18 °CJA: 18 °CAS: 15 °CSO: 11 °CON: 6 °CND: 4 °CD18 °C

Heating degree-days here run 15% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 58/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

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.

C2ISO 9223 corrosivity (indicative)
24/100environmental-severity index
15.6°Cseasonal temperature swing
153 kmdistance to coast

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.

How it compares & nearby plants

The #1 largest coal power plant of 124 in Germany by capacity.

Germany has 124 coal power plants in this dataset, together about 64,920 MW of capacity.

Nearby power plants

Location

Coordinates 50.993, 6.6685 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Niederaussem power station?

Niederaussem power station is a 3,430 MW source-record coal power plant in North Rhine-Westphalia, Germany, commissioned in 1979.

How much electricity does Niederaussem power station generate?

Niederaussem power station generates about 23,579 GWh of electricity per year.

How many homes can Niederaussem power station power?

Its output is enough to supply roughly 6,736,942 homes.

Who operates Niederaussem power station?

Niederaussem power station is operated by RWE Power AG.

How much CO₂ does Niederaussem power station emit?

Niederaussem power station has measured emissions of about 13,310,981 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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