SSE Renewables buys 100MW/200MWh Northern Ireland BESS project

By George Heynes
LinkedIn
Twitter
Reddit
Facebook
Email

A 100MW/200MWh BESS project in Northern Ireland has been acquired by the renewable energy development subsidiary of UK-headquartered power generator and developer SSE.

The 2-hour duration Derrymeen battery in Dungannon, County Tyrone was bought from developer Heron Energy and would be the largest installed BESS facility in Northern Ireland when online.

Subject to a final investment decision by SSE Renewables, the shovel-ready project will be constructed on a greenfield site located outside Coalisland, around five miles from Dungannon.

If approved for final delivery, construction could commence early next year and the BESS would be operational by the end of 2026. It will connect to the grid via an underground cable to the nearby existing Tamnamore substation.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

This is SSE Renewables’ first battery storage development in Northern Ireland, having already an established green portfolio in Britain. The firm launched its first operational BESS in the GB market on 15 April in the form of a 50MW/100MWh asset located in Salisbury, Wiltshire.

To see the full, original version of this article go to Solar Power Portal.

13 October 2026
London, UK
Now in its second edition, the Summit provides a dedicated platform for UK & Ireland’s BESS community to share practical insights on performance, degradation, safety, market design and optimisation strategies. As storage deployment accelerates towards 2030 targets, attendees gain the tools needed to enhance returns and operate resilient, efficient assets.

Read Next

August 14, 2026
Squadron Energy has completed a refinancing of its Australian renewable energy portfolio, securing total debt commitments of more than AU$2.7 billion (US$1.76 billion).
August 13, 2026
NextEnergy UK has acquired a 107MW/151MWh portfolio of standalone battery energy storage system (BESS) projects in the UK.
Premium
August 13, 2026
ESN Premium learns about Hong Kong’s role as a bridge between China and the world, from energy storage solution provider RelyEZ and investment promotion agency InvestHK.
August 13, 2026
Denmark-headquartered investor Copenhagen Infrastructure Partners (CIP) has brought its 500MW, 2-hour duration Coalburn 1 battery energy storage system (BESS) into commercial operation.
August 12, 2026
Australia’s grid-scale battery storage fleet set a cluster of dispatch-interval records on 11 August in the NEM.