Helius Energy Plc is a biomass energy development company. It owns, develops and operates biomass fired renewable electricity generation plants. The company is also engaged in renewable energy markets, biomass energy technologies, biomass fuel sources, project development, implementation and operation of power generation plants. Its projects include the Rothes energy project, as well as developing 100MWe biomass power projects at Avonmouth and Southampton. Helius Energy was founded by Adrian Clive Bowles, John Michael Seed and Christopher Mark Corner in 2005 and is headquartered in London, the United Kingdom.