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HKW Witzenhausen power station

Biomass power plant in Hesse, Germany. Approximate location 51.3209, 9.8499.

BiomassHesseGermanyCO₂ measured

HKW Witzenhausen power station is a 34 MW biomass power plant in Hesse, Germany. It is operated by B+T Energie GmbH. Based on its capacity (estimated), it can supply roughly 47k homes (estimated). It ranks #429 of 1,442 Germany power plants by installed capacity. Its annual emissions of 6,301 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 1.5k cars driven for a year. In context, biomass supplies about 10.1% of Germany's electricity; the national grid averages 330 gCO₂/kWh (59.1% low-carbon) (2025).

34Legacy source-record capacity
46,803homes powered (est.)
6,301t CO₂ / yr (EU ETS verified (EUTL 2023))

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-114.

Data status

Known data

FacilityHKW Witzenhausen power station Climate TRACE
CountryGermany · Hesse Climate TRACE
Coordinates51.3209, 9.8499 Climate TRACE
FuelBiomass Climate TRACE
MW installed capacity34 MW Climate TRACE source record; scope not independently normalised
OwnerB+T Energie GmbH Climate TRACE
CO₂ emissions6,301 t CO₂/yr measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#429 of 1442 calculated
Fuel-specific rank in country#15 of 73 calculated
Capacity vs country/fuel peers1.73× · 20 MW median · 73 peers calculated
Homes-powered equivalent46,803 calculated
Climate8.2°C · HDD 3,566 derived from coordinates
Environmental severityC2 · 24/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot available not in dataset
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: Climate TRACE source-record capacity (modelled/legacy); fuel: Climate TRACE source-record fuel

In context: how this plant compares

At 34 MW, HKW Witzenhausen power station is well above the median biomass plant in Germany (20 MW). Biomass plants burn organic material such as wood, residues or waste-derived fuel to raise steam; they are dispatchable and counted as low-carbon where the feedstock is sustainably sourced.

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

6,301 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

1.5kpassenger cars driven for a year
822homes' yearly energy use
105ktree 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).

Capacity vs largest biomass plants in Germany

Zolling power station: 528 MW528Zolling po…Stendal Mill power station: 140 MW140Stendal Mi…Zellstoff Stendal GmbH: 139 MW139Zellstoff …Stora Enso Maxau: 78 MW78Stora Enso…Oberhausen Niederrhein power station: 75 MW75Oberhausen…EVI Abfallverwertung power station: 70 MW70EVI Abfall…MVA Heringen power station: 64 MW64MVA Hering…SCA Mannheim: 59 MW59SCA Mannhe…

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

Owner

Operated by B+T Energie GmbH.

Local climate & thermal context

This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 51.3°N — which shapes how much energy it can produce and how its output varies through the year.

8.2°Cannual mean temp
3,566heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
316 melevation

Monthly mean temperature

J: 0 °CJF: 0 °CFM: 4 °CMA: 7 °CAM: 12 °CMJ: 15 °CJJ: 17 °CJA: 16 °CAS: 13 °CSO: 8 °CON: 4 °CND: 2 °CD17 °C

Heating degree-days here run 45% 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: 77/100 — this site sits in the top 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
16.5°Cseasonal temperature swing
269 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 #15 largest biomass power plant of 73 in Germany by capacity.

Germany has 73 biomass power plants in this dataset, together about 2,477 MW of capacity.

Nearby power plants

Location

Coordinates 51.3209, 9.8499 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is HKW Witzenhausen power station?

HKW Witzenhausen power station is a 34 MW source-record biomass power plant in Hesse, Germany.

How many homes can HKW Witzenhausen power station power?

Its output is enough to supply roughly 46,803 homes (estimated).

Who operates HKW Witzenhausen power station?

HKW Witzenhausen power station is operated by B+T Energie GmbH.

How much CO₂ does HKW Witzenhausen power station emit?

HKW Witzenhausen power station has measured emissions of about 6,301 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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