Ballyross is a proposed battery storage facility near Gleno in County Antrim, developed by RES. With a planned capacity of up to 120 MW and 480 MWh, it is designed to store electricity and return it to the grid for up to four hours at full output.[1][2]
Current position
Mid and East Antrim Borough Council granted planning permission on 23 October 2026, subject to conditions. Construction has not been announced.
What is planned
The facility is planned near Ballyvallagh substation and would help the electricity network manage changes in renewable generation and demand.
Plans include native planting and landscape screening. Construction is expected to take about 20 months once it begins; no start or commissioning date has been confirmed.
Plans for the Ballyross battery storage project in County Antrim have been approved by Mid and East Antrim Borough Council. The proposed facility near Gleno and Larne would provide up to 120 megawatts of power and 480 megawatt-hours of storage — enough to deliver its full rated output for four hours.
Developed by RES near the existing Ballyvallagh electricity substation, Ballyross is intended to help Northern Ireland store electricity and release it when demand increases. The project includes plans for landscape screening and native planting.
Planning permission was granted on 23 October, subject to conditions. Construction is expected to take around 20 months once it starts; no construction or operating date has been confirmed.