SSE has named Kirby Group Engineering and Sungrow as the main contractors for the 100MW/200MWh Derrymeen Battery Energy Storage System (BESS) project near Dungannon in County Tyrone.

The move follows confirmation earlier this year that SSE Renewables had begun site preparation and enabling works at Derrymeen ahead of full construction beginning in the coming months.

Sungrow will provide the battery energy storage technology, while Kirby Group Engineering will handle construction, integration and Balance of Plant (BoP) works. On-site activity is expected to continue through to late 2027.

Patrick Greene, Construction Projects Director at SSE Renewables, said: "Mobilisation to site is now under way, with full construction set to commence in the coming weeks. The appointment of Kirby Group Engineering and Sungrow marks a significant milestone in advancing the Derrymeen Battery Energy Storage System project. Battery storage will play a crucial role in supporting the transition to a renewables-led electricity system, and we look forward to working closely with both partners throughout the construction phase."

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Leo Powell, Country Manager UK & Ireland at Sungrow, said: "We are proud to support SSE Renewables in the delivery of the Derrymeen BESS project, a key step in accelerating the integration of renewable energy in Northern Ireland. By supplying our PowerTitan 2.0 battery energy storage system, we are supporting a more flexible grid in the region while reinforcing a strong and lasting collaboration with our key partner, SSE Renewables."

Stephen Kavanagh, Kirby Business Unit Leader for Power and Renewables, said: "This project marks a significant step forward in enhancing resilience across the Northern Ireland electricity network, as SSE Renewables drives decarbonisation and increases the amount of renewable energy available on the network. We look forward to delivering this critical investment and working closely with SSE Renewables and the community to generate lasting value in the region."

SSE Renewables said the project will add flexible energy infrastructure to support Northern Ireland's transition to a cleaner, more resilient electricity system.

Once operational, the 100MW/200MWh Derrymeen facility will help integrate renewable generation onto the grid and strengthen security of supply.