ERG SpA engages in the production and marketing of electricity and steam. It operates through the following business segments: Renewable Energy Sources; Power and Gas, and Integrated Downstream. The Renewable Energy Sources segment involves in the operation and maintenance of wind farms through the subsidiary ERG Renew SpA. The Power and Gas segment engages in the trading of natural gas, electricity, and steam. The Integrated Downstream segment focuses on the distribution and marketing of petroleum products as well as the supply and logistics, wholesale, and special products of refinery. The company was founded by Edoardo Garrone on June 2, 1938 and is headquartered in Genoa, Italy.