Google to Build 23MW/200MWh CO₂ Battery Storage Facility in Ireland
Google and Energy Dome will build a 23MW/200MWh CO₂ battery storage facility near Rhode in County Offaly, repurposing a former peat-fired power site for clean energy. The plant, developed with local partner Lumcloon Energy, marks the first bilateral commercial deployment under their strategic long-duration storage partnership.
1. Project Overview
Google and Energy Dome will develop a 23MW/200MWh CO₂ battery system on a former peat-fired power station site near Rhode in County Offaly. The brownfield project, in collaboration with Lumcloon Energy, repurposes existing grid connections to provide long-duration energy storage for the Dublin area network.
2. Technology and Partnership
The CO₂ battery system compresses carbon dioxide using surplus renewable power, stores it, and later releases electricity by expanding CO₂ through a turbine. This marks the first bilateral commercial contract deploying Energy Dome's long-duration storage under its strategic partnership with Google.
3. Strategic Implications
The Irish government targets 80% renewable electricity by 2030 and recognizes long-duration energy storage as critical for supply security and cost reduction. The project supports grid resilience during peak demand, creates local jobs, and advances Google’s commitment to carbon-free operations.
