Revera Energy (renewable energy infrastructure platform), the Carlyle-backed energy infrastructure developer, has reached a final investment decision for its 400 MW / 800 MWh Hunterston battery storage project in North Ayrshire, Scotland, advancing what the company describes as one of the largest battery storage portfolios currently being built anywhere in the United Kingdom.

A Portfolio Taking Shape Across Scotland

The Hunterston decision is the latest in a series of moves by Revera to build out a substantial footprint in Scottish battery energy storage. The company recently reached financial close and issued a notice to proceed for its 200 MW / 400 MWh Windyhill battery storage project in Glasgow, where construction is already underway.

Revera expects construction at Hunterston to begin in the third quarter of 2026. A third project, the 400 MW / 800 MWh Kincardine battery storage facility in Fife, is also being advanced, with construction anticipated to start in the first quarter of 2027.

Together, the three projects Windyhill, Hunterston, and Kincardine represent a combined capacity of 1.0 GW / 2.0 GWh and a total investment of over £500 million across Scotland.

Jobs and Economic Impact Cited Across Three Regions

Revera said the three projects are expected to support approximately 550 direct construction jobs and 45 long-term operational roles, with economic benefits flowing to communities in North Ayrshire, Glasgow and Fife.

The company framed the investment as a contribution not only to grid infrastructure but to the broader economic development of the regions in which the projects are located.

Daniel Kim, Chief Executive Officer of Revera Energy, described the Hunterston final investment decision as an important milestone for the company and said the three-project portfolio would play a significant role in strengthening the electricity network for homes and businesses across Scotland.

Kim said the company was committed to working closely with local communities, stakeholders, and government as it brought the projects forward, and expressed hope of leaving a lasting positive legacy in each of the areas where it operates.

Scottish Government Welcomes Scale of Commitment

First Minister of Scotland John Swinney offered his backing for the announcement, describing Revera's decision to commit to three major projects as a vote of confidence in Scotland's skills, economic policies, and energy future.

Swinney characterised the portfolio as one of the largest battery storage developments being built anywhere in the UK and said it demonstrated that Scotland was an internationally competitive destination for clean energy infrastructure investment.

The First Minister also pointed to the employment dimension of the projects, noting that they would create jobs during construction as well as permanent roles for years to come, and said they would help power Scottish homes and businesses with cleaner and more reliable energy.

Carlyle Underlines Infrastructure Strategy

Richard Hoskins, Managing Director in Carlyle's Infrastructure Group, said the investment reflected Carlyle's focus on infrastructure businesses and assets that are critical to a resilient and affordable electricity network.

Hoskins described the scale of investment across Revera's Scottish portfolio as a reflection of Carlyle's commitment to Scotland and pointed to what he called the opportunities available to support critical grid infrastructure, local economic growth and long-term value creation for communities and investors across the country.

Carlyle is the financial backer behind Revera Energy, which is structured as an energy infrastructure platform focused on developing, building, owning and operating assets across the United Kingdom and Australia.

Projects Positioned Within the UK's Clean Power 2030 Framework

All three projects, Windyhill, Hunterston, and Kincardine, have secured positions within the UK's Clean Power 2030 framework. Revera said this underscored their role in delivering the infrastructure required to support a more flexible and resilient electricity network, enabling Scotland's renewable energy resources to power homes and businesses more reliably across the country.

Battery storage is considered a key enabler of renewable integration, allowing electricity generated from wind and solar sources to be stored and dispatched when demand requires it, rather than being curtailed during periods of low consumption.

The Clean Power 2030 framework represents the UK government's programme for restructuring the electricity system to run primarily on clean energy sources by the end of the decade.

Hunterston Site Carries Historical Energy Significance

The Hunterston site in North Ayrshire has a long association with energy infrastructure in Scotland. The location of a former nuclear power station, the site's selection for a major battery storage project continues its role as a significant node in Scotland's energy landscape, though Revera's announcement did not detail the specific relationship between the new project and any prior use of the land.

Construction Timeline and Next Steps

With Windyhill already under construction, Hunterston set to begin in the third quarter of 2026 and Kincardine targeting a start date in the first quarter of 2027, Revera is managing a staggered construction programme across the three Scottish sites.

The sequencing allows the company to advance multiple large-scale projects in parallel while managing the logistical and supply chain demands associated with utility-scale battery storage development.

Revera Energy described itself as a developer, owner and operator of energy infrastructure assets, with its UK activity focused specifically on utility-scale battery storage projects designed to support a reliable, flexible and increasingly renewable electricity system.

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