We are undertaking major civil engineering works for several Biogas Green Energy Plants throughout the South West of England. The process involves converting silage to methane gas necessitating silage clamps for storage of silage, an energy plant, various large tanks for processing and items of plant and machinery. This all requires infrastructure including significant excavation, retaining walls and foundation bases. The process area has to be contained within a bund to comply with various environmental regulations for the avoidance of pollution. This work is exciting and an asset to the environment.