Google is partnering with Energy Dome to build a 23MW / 200MWh long-duration energy storage plant at a former thermal power station near Rhode, co. Offaly.

The project is part of a long-term agreement the companies announced last year to deploy Energy Dome’s CO2 Battery technology at scale and advance Google’s ambition to expand access to 24/7 clean, affordable energy for grids globally.

By absorbing surplus renewable energy during periods of oversupply and dispatching firm power during periods of system stress, Energy Dome’s plant can enable smart, cost-effective utilization of the grid’s renewable energy resources to balance the system.

Through this project Google and Energy Dome aim to establish a blueprint for how long duration energy storage technology can contribute to a clean, affordable electricity system in Ireland.