SSE has revealed its plans to advance a new pumped storage hydropower project at Loch Fearna in Scotland’s Great Glen.
This project will be developed through a 50:50 joint venture between SSE Renewables and a consortium led by Gilkes Energy.
Strategic Location Adjacent to Existing Reservoir
The proposed co-development is strategically situated at the western end of Glengarry, approximately 25km west of Invergarry. It conveniently adjoins SSE Renewables’ existing Loch Quoich reservoir, which is part of the Great Glen hydro scheme.
SSE Renewables’ Expanding Hydroelectric Portfolio
SSE Renewables currently operates the largest fleet of hydroelectric power and pumped storage hydro assets in Scotland. The company is now actively progressing development plans for new pumped storage hydropower projects in the Highlands.
These projects will complement its existing fleet and provide the essential large-scale, long-duration electricity storage (LDES) required for Britain’s future energy mix.
Fearna Pumped Storage Hydro Project Details
The Fearna Pumped Storage Hydro (PSH) project involves the construction of tunnels and a new power station, connecting SSE Renewables’ existing Loch Quoich reservoir with a newly proposed upper reservoir at Loch Fearna.
Under the terms of the joint venture announced today, Gilkes Energy will take the lead in developing the project under a development services agreement with SSE Renewables.
Anticipated Generating Capacity and Grid Connection
The proposed development is expected to achieve a generating capacity of up to 1.8 GW, capable of producing approximately 37 GWh of stored energy capacity. The project has already secured a grid connection offer totaling 1795 MW.
Consultation and Planning Process
A request for a scoping opinion for the project is currently under review by Scottish Government ministers. Consultation with local communities and organizations has already commenced.
An application for planning consent is expected to be submitted to Scottish Government ministers in due course. If approved, Fearna could become one of the largest pumped storage hydro projects in the UK, potentially reaching commercial operation in the mid-2030s, pending a final investment decision.
UK Government Support for Long-Duration Energy Storage
Earlier this year, the UK Government initiated a consultation on their proposed “minded-to” decision to implement a cap and floor investment framework for long-duration electricity storage, including pumped storage hydro.
The outcome of this consultation is anticipated by the end of 2024, with the first application window for projects potentially opening in 2025.
Significance of Pumped Storage Hydro for Net Zero Transition
Ross Turbet, Head of Investment Management for Hydro at SSE Renewables, emphasized the critical role of pumped storage hydro projects in the UK’s transition to net zero.
He highlighted their importance for energy security and balancing a predominantly renewable energy system when wind and solar resources are unavailable.
The proposed Fearna project is a valuable addition to SSE Renewables’ development pipeline, which includes other pumped storage hydro projects like Coire Glas and the planned conversion of Sloy Power Station.
Gilkes Energy’s Perspective on the Partnership
Carl Crompton, Managing Director of Gilkes Energy Limited, expressed excitement about partnering with SSE Renewables on the Fearna Pumped Storage project.
He emphasized the role of energy storage in balancing renewable energy generation and the longevity and robustness of pumped storage hydro technology. Crompton also welcomed the government’s consultation on long-duration electricity storage support, viewing the proposed cap and floor mechanism as a positive step towards unlocking financing for pumped storage hydro projects.