In 2015, the specialised investment fund AssetGen Partners entrusted Bouygues Energies & Services with a contract worth around 110 million euros for the turnkey delivery of a biomass gasification plant in Hoddesdon in the county of Hertfordshire. The subsidiary was responsible for the engineering, construction and equipment provision of this 10MWe power plant, and still manage its use and maintenance for a period of ten years. This is the largest waste gasification plant in the UK in operation since 2017.