Pinsent Masons advises Revera Energy on 400MW / 800MWh Hunterston BESS Project

The Hunterston project is located in North Ayrshire, Scotland, close to one of the UK’s most persistent power grid bottlenecks. Revera achieved financial close on the project in September 2026, and simultaneously issued Notice to Proceed, with construction of the project to commence immediately.

Pinsent Masons has advised Revera on the drafting and negotiation of all construction, maintenance and optimisation agreements for the Project, including:

• Battery Supply & Commissioning Contract and Long-Term Service Agreement.
• Balance of Plant Contract and Operation & Maintenance Agreement.
• Optimisation Agreements with long-term floor and tolling structures.

Our role on this significant project highlights Pinsent Masons’ market leading experience advising on large-scale BESS projects, including those involving complex multi-contract procurement models and layered optimisation structur

The Pinsent Masons team for the project was led by Cameron Reid and Alexander Grant, with the optimisation workstream led by Jeremy Chang and Ronan Lambe. The wider Pinsent Masons team included Catherine Burns, Remi Ahmed, Thomas Penton, Alasdair MacDonald, Lucia Doran, Cosima Dickinson, Marti Sikora and Fraser King.

Commenting on the matter, Partner Cameron Reid said: “We are delighted to have supported the Revera Energy team on this significant BESS project, and we look forward to continuing to work with Revera on their development pipeline.”

Patrick Quinn, Senior Counsel at Revera said: “Achieving financial close on the Hunterston project was a huge milestone for Revera’s UK business and a crucial next step in Revera’s strategy to grow its BESS platform in the UK. The expertise, dedication and experience in the UK BESS market of the Pinsent Masons team was instrumental to us achieving this milestone in such a short period of time. We are looking forward to continuing our cooperation with Pinsent Masons as we develop our UK pipeline further.”