| Plant | Fuel | Country | MW | t CO₂/yr |
|---|---|---|---|---|
| Beckton STW Enhanced Sludge Digestion | Waste | United Kingdom | 6 | — |
| Mogden STW | Waste | United Kingdom | 6 | — |
| Crossness Sewage Works | Waste | United Kingdom | 6 | — |
| Riverside Sewage Treatment Works Digestion Plant | Waste | United Kingdom | 4 | — |
| Deephams Sewerage Treatment Works | Biomass | United Kingdom | 3 | — |
| Crossness Sewage Works Turbine | Wind | United Kingdom | 2 | — |
| Rye Meads Sewerage Treatment Works | Biomass | United Kingdom | 2 | — |
| Beckton Sewage Treatment Works | Wind | United Kingdom | 2 | — |
| Walton | Solar | United Kingdom | 2 | — |
| Crossness | Solar | United Kingdom | 2 | — |
| Basingstoke Sewage Treatment Works | Biomass | United Kingdom | 1 | — |
| Slough Sewage Treatment Works | Waste | United Kingdom | 1 | — |
| Swindon Sewerage Treatment Works | Biomass | United Kingdom | 1 | — |
| Longreach STW - extension | Waste | United Kingdom | 1 | — |
Ownership & capacity: WRI Global Power Plant Database (CC BY 4.0). Measured CO₂ where reported to EPA/EU ETS/Climate TRACE.
