SSE Renewables plans 18GW/37GWh pumped hydro energy storage project in Scotland, UK

July 24, 2024
LinkedIn
Twitter
Reddit
Facebook
Email

SSE Renewables has revealed plans to progress a 1.8GW pumped hydro energy storage (PHES) project at Loch Fearna, Scotland, UK, with a consortium led by Gilkes Energy.

The Fearna PHES project envisages developing tunnels and a new power station to connect SSE Renewables’ existing reservoir at Loch Quoich with an upper reservoir at Loch Fearna.

SSE Renewables, which is the renewable energy development arm of Scotland-headquartered multinational energy company SSE, announced its plans earlier this week (22 July).

If pursued, the project could produce around 37GWh of stored energy capacity, thus providing additional stability and flexibility to the GB grid. It would export energy for 20 hours at 1.8GW. A grid connection offer totalling 1.795GW has already been secured.

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

SSE confirmed the project could reach commercial operations in the mid-2030s, subject to reaching a final investment decision.

Gilkes Energy said the Fearna PHES project will complement the existing conventional hydro projects in the area and “represents the next chapter in Scotland’s rich hydropower heritage”.

Under the terms of the joint venture, Gilkes Energy will lead the project’s development under a development services agreement with SSE Renewables, leveraging the company’s experience in developing PHES projects in Scotland.

“The proposed Fearna project is a welcome addition to our development pipeline of pumped storage hydro projects, which also includes our proposal to develop what could be one of Britain’s biggest pumped storage schemes in 40-years at Coire Glas and our intention to convert our existing Sloy Power Station into a PHES facility,” Ross Turbet, head of investment management for hydro at SSE Renewables, said.

To read the full version of this story, visit Current.

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

February 24, 2026
Panellists discussed M&A in large-scale BESS on the ‘M&A Market: How Attractive Is BESS Right Now?’ panel discussion at the Energy Storage Summit 2026.
February 24, 2026
How to enable bankability for large-scale BESS projects was the main topic of the opening panel discussion at the Energy Storage Summit 2026 which kicked off today (24 February).
February 24, 2026
The recent successes of the energy storage market in Europe bring new challenges alongside industry maturity, writes Vicente Abad.
February 20, 2026
A flurry of BESS project news from big-name players in Western Europe in the run-up to the Energy Storage Summit next week, with Neoen, Statkraft, Zenobē and Infranode moving projects forward in Germany, Ireland, the UK and Denmark. Highlights include a 15-year toll between Drax and Zenobē, and multiple 4-hour duration systems.
February 20, 2026
Recent developments from India’s emerging energy storage sector highlight a broadening of interest in diverse technologies and applications.