Energy Dome has secured a global commercial partnership with Google to deploy its CO2 Battery technology, enabling carbon-free energy for the grids that power Google’s operations. In parallel, Google has made a strategic investment in the Milan-based long-duration energy storage (LDES) company.
This marks Google’s first commercial LDES agreement, supporting its 24/7 carbon-free energy ambitions by 2030. Energy Dome’s solution – already proven and market-ready – is built for global scalability, fast deployment, and cost efficiency.
The CO2 Battery can deliver firm power continuously for eight to 24 hours, meeting both baseload and flexibility demands. Using modular architecture and standard components, the system avoids supply chain bottlenecks and is site-independent, making it suitable for large-scale energy applications.
Additionally, the rotating machinery of the technology provides natural grid inertia, critical for stabilising frequency as renewable penetration increases and fossil fuel plants are retired.
“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. “But this isn’t just about Google. By helping to scale this first-of-a-kind LDES technology, we hope to help communities everywhere gain greater access to reliable, affordable electricity and support grid resilience as we integrate more renewable energy sources.”
The partnership outlines plans to develop CO2 Battery projects across Europe, the Americas, and Asia-Pacific. A robust pipeline of identified sites is already under development, aligning with Google’s global decarbonisation strategy.
Google’s direct investment further accelerates Energy Dome’s commercial scale-up, reinforcing shared goals around clean energy innovation and resilience.
Image: Energy Dome’s C2 Battery


