Energy Dome
Updated: April 08, 2026
Founder Claudio Spadacini
Country: Italy | Funding: $166.9M (+)
Founded: 2020
Website: https://energydome.com/
Energy Dome develops a low-cost and efficient system for long-duration electricity storage using liquid CO2. Its CO2 Battery Plus technology aims to improve the efficiency and flexibility of gas-fired power generation by combining energy storage with waste heat recovery. The CO2 Battery technology stores energy by compressing CO2. In the conventional setup, both pressure and heat generated during charging are stored separately: heat in a thermal storage system for later use during discharging.
Founded: 2020
Website: https://energydome.com/
Energy Dome develops a low-cost and efficient system for long-duration electricity storage using liquid CO2. Its CO2 Battery Plus technology aims to improve the efficiency and flexibility of gas-fired power generation by combining energy storage with waste heat recovery. The CO2 Battery technology stores energy by compressing CO2. In the conventional setup, both pressure and heat generated during charging are stored separately: heat in a thermal storage system for later use during discharging.
