Energy Dome Signs First U.S. Contract with Alliant Energy for Commercial-Scale Deployment of its CO2 Battery
A Signed Supply Contract Cements the Role of Energy Dome's Technology in the

Left: Claudio Spadacini, CEO – Energy Dome. Right: Raja Sundararajan, Executive Vice President – Alliant Energy. (Photo: Business Wire)
Having already secured a competitive Cooperative Agreement award of up to
This represents a major step forward for long-duration energy storage and underscores both companies' commitment to enhancing renewable energy deployment while maintaining grid reliability and affordability.
Claudio Spadacini, CEO of Energy Dome, expressed enthusiasm about this milestone, stating, "This is excellent news for long-duration energy storage in
Raja Sundararajan, Executive Vice President of Alliant Energy, also conveyed his satisfaction about this collaboration, remarking: "We are excited to announce the signed supply contract with Energy Dome for our pioneering Columbia Energy Storage Project. It is a critical milestone of this strategic partnership. After a thorough evaluation of technologies available in the market, the Energy Dome’s CO2 Battery stood out as a cost-effective, efficient and scalable solution. We see this as the first of many CO2 Batteries to be built in partnership between Energy Dome and Alliant to continue delivering reliable and affordable energy in the communities we serve."
The Columbia Energy Storage Project will feature Energy Dome's standard-frame 20MW/200MWh CO2 Battery, powering around 18,000 homes in
In parallel, the construction of Energy Dome's first-of-a-kind standard CO2 Battery plant in
It's also worth noting that thanks to a modular and standardized approach, the Italian plant will virtually be identical to the one in the
For more information on Energy Dome’s projects, please visit energydome.com.
About Energy Dome
Energy Dome is at the forefront of redefining long-duration energy storage with its CO2 Battery. The properties of carbon dioxide allow the system to store energy efficiently and cost-effectively through a patented thermodynamic process, hence representing the most valid alternative to lithium-ion batteries or pumped-hydro solutions. The CO2 Battery is already a fully validated and cost-effective system that uses no lithium or rare-earth elements to store electricity, boasting superior round-trip efficiency. With a modular approach and site-independent footprint, CO2 Batteries use readily available, off-the-shelf components from reliable, existing supply chains, providing a scalable pathway to store massive amounts of intermittent renewable energy and accelerate the energy transition; it’s the only technology available today offering the right combination of efficiency, cost, scalability and that's viable globally. For more information, please visit energydome.com.
About Alliant Energy
Alliant Energy Corporation (NASDAQ: LNT) provides regulated energy service to 1 million electric and 425,000 natural gas customers across
About the Office of Clean Energy Demonstrations
The
View source version on businesswire.com: https://www.businesswire.com/news/home/20241022545249/en/
Media: Mario Torchio – m.torchio@energydome.com
Source: Energy Dome