Information for Lakeside Energy from Waste (Replacement), Land west of the Iver South Sludge dewatering Centre and south of the M4 motorway, Colnbrook, Slough
Status: PotentialPlanning Region: South East
Planning Sub-Region: Berkshire
Operator: S Grundon Waste and Viridor / KKR
Capacity: 440,000
Campaign Group(s): Contact coordinator@ukwin.org.uk to be put in touch with those opposing this development.
Notes: In January 2025 the UK Government confirmed their plan to proceed with a third runway at Heathrow, and previous work indicated this would require the Lakeside incinerator to be replaced at a different location [Source]. A site on land west of the Iver South Sludge dewatering Centre and south of the M4 motorway was originally announced as the replacement site in February 2019 and this was subject to both a planning application (P/17826/000) and a permit application (EPR/PP3330QY/A001), but in October 2019 it was reported that "the intended site for Lakeside Energy interferes with its plans for a Heathrow rail link". Specifically: "Network Rail warns that the incinerator would interfere with a ventilation shaft and building for the tunnel, and states that the site will have to be redesigned". In August 2020 it was reported that the application had been withdrawn due to successful legal action against the third runway [Source]. However, it is possible that a new re-worked proposal on this site might be submitted in the future. (Entry updated 2025-05-30)
Environment Agency Compliance Assessment Reports
Click here to see the incinerator compliance documents for existing English incineratorsStandard notice:
UKWIN (and therefore the UKWIN map) focuses on Municipal Waste Incinerators, whereas our colleagues at Biofuelwatch focus on biomass projects. If you are interested in biomass incinerators (including waste wood plants) over 20MW then please see the Biofuelwatch map of UK Biomass Power Stations. Those concerned about biomass plants, including waste wood plants, should email Biofuelwatch at biofuelwatch[at]gmail.com.Please be aware: There is always room for improvement, so please send updates to coordinator@ukwin.org.uk. Existing Incinerator means a facility that is operational or under construction/commissioning. A Potential Incinerator is a facility where there is a proposal for an incinerator (e.g. planning application or planning consent) or other reason to believe an incinerator might be built/proposed in the future. A Prevented Incinerator is something which used to be a proposal or expected incinerator which we do not believe is currently being progressed (e.g. because the project was cancelled, planning permission refused, or years have gone by since the permission was granted without any progress) - in some cases a facility marked as prevented is being progressed without us being aware or is subsequently revived. Capacity is usually the permitted or maximum advertised capacity of the facility.