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Heizkraftwerk der Sappi Stockstadt GmbH

Coal power plant in Bavaria, Germany. Approximate location 49.9774, 9.0687.

CoalBavariaGermanysubcriticalCO₂ modelled

Heizkraftwerk der Sappi Stockstadt GmbH is a 25 MW coal power plant in Bavaria, Germany. It is operated by Sappi Stockstadt GmbH. Based on its capacity (estimated), it can supply roughly 31k homes (estimated). It ranks #507 of 1,442 Germany power plants by installed capacity. Commissioned in 1969, it is around 57 years old — an older, legacy facility. Its modelled annual emissions are 67,676 t CO₂/yr (Climate TRACE), equivalent to about 16k 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).

25Legacy source-record capacity
31,035homes powered (est.)
67,676t CO₂ / yr (Climate TRACE)
1969commissioned (~57 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1005740.

Data status

Known data

FacilityHeizkraftwerk der Sappi Stockstadt GmbH WRI
CountryGermany · Bavaria WRI
Coordinates49.9774, 9.0687 WRI
FuelCoal WRI
MW installed capacity25 MW WRI source record; scope not independently normalised
OwnerSappi Stockstadt GmbH WRI
Commissioned1969 WRI
Technologysubcritical WRI

Modelled source data

CO₂ emissions67,676 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#507 of 1442 calculated
Fuel-specific rank in country#109 of 124 calculated
Capacity vs country/fuel peers0.08× · 296 MW median · 124 peers calculated
Homes-powered equivalent31,035 calculated
Climate9.6°C · HDD 3,079 derived from coordinates
Environmental severityC2 · 25/100 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.

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 25 MW, Heizkraftwerk der Sappi Stockstadt GmbH is below 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.

~67,676 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

16kpassenger cars driven for a year
8.8khomes' yearly energy use
1.1 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Capacity vs largest coal plants in Germany

Niederaussem power station: 3,430 MW3kNiederauss…Janschwalde power station: 3,000 MW3kJanschwald…Boxberg power station: 2,582 MW3kBoxberg po…GKM (Mannheim) power station: 2,147 MW2kGKM (Mannh…BoA 2: 2,100 MW2kBoA 2Neurath power station: 2,068 MW2kNeurath po…Brunsbuettel SWS power station: 1,820 MW2kBrunsbuett…Weisweiler power station: 1,800 MW2kWeisweiler…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Sappi Stockstadt GmbH.

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 50.0°N — which shapes how much energy it can produce and how its output varies through the year.

9.6°Cannual mean temp
3,079heating degree-days (base 18°C)
32cooling degree-days (base 18°C)
165 melevation

Monthly mean temperature

J: 1 °CJF: 2 °CFM: 6 °CMA: 9 °CAM: 14 °CMJ: 17 °CJJ: 19 °CJA: 18 °CAS: 14 °CSO: 10 °CON: 5 °CND: 2 °CD19 °C

Heating degree-days here run 25% 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: 65/100 — 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)
25/100environmental-severity index
17.7°Cseasonal temperature swing
340 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 #109 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 49.9774, 9.0687 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Heizkraftwerk der Sappi Stockstadt GmbH?

Heizkraftwerk der Sappi Stockstadt GmbH is a 25 MW source-record coal power plant in Bavaria, Germany, commissioned in 1969.

How many homes can Heizkraftwerk der Sappi Stockstadt GmbH power?

Its output is enough to supply roughly 31,035 homes (estimated).

Who operates Heizkraftwerk der Sappi Stockstadt GmbH?

Heizkraftwerk der Sappi Stockstadt GmbH is operated by Sappi Stockstadt GmbH.

How much CO₂ does Heizkraftwerk der Sappi Stockstadt GmbH emit?

Heizkraftwerk der Sappi Stockstadt GmbH has modelled emissions of about 67,676 tonnes of CO₂ per year (Climate TRACE).

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