Capital Dynamics and Solo Renewables have entered into a joint venture (JV) to develop a £100m ($132.2m) long-duration energy storage (LDES) system in Northern Ireland.
The project, located in Islandmagee, is set to provide energy equivalent to the daily consumption of up to 36,000 households once operational, assuming a single discharge each day.
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In February 2026, the Mid and East Antrim Borough Council granted planning approval for the 150MW project, which offers a storage capacity of up to eight hours or 1,200MWh.
The LDES system in Islandmagee is among the initial large-scale energy storage sites being developed in the Irish Single Electricity Market.
It comes at a time when regulatory changes, such as the Renewable Electricity Price Guarantee (REPG), are driving investments in wind and solar power across Northern Ireland.
The Islandmagee LDES aims to support local grid stability and contribute to the economic and community welfare by providing substantial storage capacity.
With planning approval obtained, Capital Dynamics and Solo Renewables are focused on advancing the project.
Both parties remain committed to collaborating with relevant stakeholders and authorities to expedite progress on the Islandmagee LDES.
Solo Renewables director Andrew Hutchinson said: “Securing planning approval in six months reflects the strength of this project and the local understanding that Islandmagee is one of the most strategically important locations in the all-island energy network.
“Northern Ireland has great potential to create and use more renewable electricity locally. This will be a good thing for homes and businesses across the region, but can only happen if we increase our ability to store wind and solar energy that can’t be used at the time it’s produced.
“We’re pleased Capital Dynamics sees the potential of the Islandmagee LDES project, and we’re looking forward to delivering a landmark storage facility that supports the energy transition.”
In November 2024, Capital Dynamics secured £48.5m in funding for its inaugural Scottish onshore wind projects that boast a combined capacity of 193MW.
