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Marchwood ERF

Waste power plant in England, United Kingdom. Approximate location 50.8981, -1.4553.

WasteEnglandUnited Kingdom

Marchwood ERF is a 16 MW waste power plant in England, United Kingdom. It is operated by Veolia. Based on its capacity (estimated), it can supply roughly 22,025 homes (estimated). It ranks #567 of 2,751 United Kingdom power plants by installed capacity. In context, the national grid averages 217 gCO₂/kWh (64.4% low-carbon) (2025).

16MW installed capacity
22,025homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GBR0000835.

Capacity vs largest waste plants in United Kingdom

Runcorn EfW: 81 MW81Runcorn EfWRiverside Resource Recovery Facility (RRRF): 72 MW72Riverside …Edmonton: 60 MW60EdmontonAllington EFW: 51 MW51Allington …Fibrepower Slough: 50 MW50Fibrepower…K3 CHP Facility (Kemsley EfW): 50 MW50K3 CHP Fac…Wilton 11 EfW: 49 MW49Wilton 11 …Lakeside EfW: 37 MW37Lakeside E…

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

Owner

Operated by Veolia. All plants by this company →

Local climate & thermal context

This waste plant recovers energy by combusting municipal or industrial waste. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 50.9°N — which shapes how much energy it can produce and how its output varies through the year.

10.5°Cannual mean temp
2,715heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
30 melevation

Monthly mean temperature

J: 5 °CJF: 5 °CFM: 7 °CMA: 9 °CAM: 12 °CMJ: 15 °CJJ: 17 °CJA: 17 °CAS: 14 °CSO: 11 °CON: 8 °CND: 6 °CD17 °C

Heating degree-days here run 10% 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: 55/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

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.

How it compares & nearby plants

The #28 largest waste power plant of 329 in United Kingdom by capacity.

United Kingdom has 329 waste power plants in this dataset, together about 1,886 MW of capacity.

Nearby power plants

Location

Coordinates 50.8981, -1.4553 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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