Google has signed its first commercial long-duration energy storage (LDES) agreement with Italian startup Energy Dome, marking a significant move toward achieving its 24/7 carbon-free energy goal by 2030. Announced via press release, the partnership centers around the deployment of Energy Dome’s CO₂ Battery, a scalable and proven alternative to traditional battery technologies. Alongside the commercial deal, Google has also made a strategic investment in the company.
As global electricity demand surges, driven in part by AI infrastructure, Google is expanding its clean energy portfolio to address the limitations of solar and wind intermittency. “Google is committed to powering our operations with clean energy, and Energy Dome’s technologically proven and scalable long-duration energy storage solution can help us unlock rapid progress,” said Maud Texier, director of EMEA Energy at Google.
AI. The modular system uses standard industrial components and avoids critical raw materials like lithium or rare-earth elements. Its design eliminates common supply chain bottlenecks, ensuring rapid, site-independent deployment across regions. According to the company, this will enable Google to meet both its baseload and flexibility requirements more reliably and cost-effectively.
The partnership will focus on rolling out projects across key global regions including Europe, the Americas, and Asia-Pacific. A pipeline of sites has already been identified and is now in development. “The programmatic and strategic deployment of our technology at scale to help Google reach carbon-free energy represents the core of our industry-first agreement,” said Claudio Spadacini, Founder and CEO of Energy Dome. “We’re proving that a 24/7 cost-effective and carbon-free energy supply is achievable with the right technology and partnership model.”
Beyond energy dispatch, the CO₂ Battery provides grid-stabilizing benefits by delivering rotational inertia, traditionally provided by fossil fuel plants. As solar and wind scale up and thermal generation phases out, technologies like Energy Dome’s offer vital stability to prevent frequency imbalances. Google emphasized that while the partnership serves its operations, the goal is also broader: “By helping to scale this first-of-a-kind LDES technology, we hope to help communities everywhere gain greater access to reliable, affordable electricity,” said Texier.
Google’s investment comes at a pivotal moment for Energy Dome, which has already secured contracts with Alliant Energy in the U.S., Engie in Italy, and NTPC in India. With this dual-track commercial and financial support, Energy Dome is poised to accelerate the global rollout of its CO₂ Battery, a system that combines efficiency, scalability, and cost-effectiveness without relying on scarce materials, offering a critical path forward in the clean energy transition.
