Scottish first minister welcomes Highview Power’s 2.5GWh ‘world’s largest’ liquid air LDES project

LinkedIn
Twitter
Reddit
Facebook
Email

Highview Power has revealed its second planned long-duration energy storage (LDES) project using its liquid air energy storage (LAES) technology, in Scotland, UK.

The company is developing a 2.5GWh project, called Hunterston, on a site in Peel Ports in North Ayrshire, Scotland. The first step is to build the grid connection and infrastructure for grid stability services, for which planning permission has been secured, while the full LAES system buildout still requires planning permission, which the company will now work towards securing.

First minister for Scotland, John Swinney MSP, welcomed Highview Power Executives to Scotland House in London yesterday (14 October) as part of the announcement.

“The creation of the largest liquid air energy facility in the world, in Ayrshire, demonstrates just how valuable Scotland is in delivering a low carbon future as well as supporting the global transition to net zero,” Swinney said.

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

The announcement comes just a few days after the UK government confirmed it will launch a cap-and-floor mechanism for LDES projects following a period of public consultation. Though Highview did not mention the cap and floor in its announcement, many see large-scale LDES projects as commercially unworkable without such a support scheme.

Hunterston is the first project in Highview’s second phase of project development. The first is a project in Manchester, eight times smaller at 300MWh, for which the company secured £300 million (US$392 million) to build in July. Its second phase comprises four projects totalling 4GWh, with Hunterston the first.

Richard Butland, CEO of Highview Power, said. “This project will be transformational for Scotland in providing critical storage for offshore wind and solving grid constraints as well as delivering major
investment in Ayrshire, and the wider region.”

The company has been working towards a significant scale-up for several years, with the then-CEO Javier Cavada claiming five years ago that the company would start construction on a 250MWh system in 2020. Highview has had a 5MW/15MWh demonstrator plant online and operational since 2018.

See a video demonstration of the company’s LAES technology below.

Read Next

July 23, 2026
Spain has awarded €165 million to seven pumped hydro storage projects totalling around 2.1GW/21GWh, while Portugal has set a target of 1.4GW of new pumped hydro capacity by 2040.
Sponsored
July 22, 2026
We caught up with Michael Koller, Solutions Director for Europe and the UK with Envision Energy, at this year’s Smarter E Europe trade show in Munich. 
July 22, 2026
With the Energy Storage Awards 2026 entry deadline less than two months away, we speak to four judges to hear what they are looking for from successful entrants.
July 21, 2026
Two big developments for India’s emerging long-duration energy storage (LDES) sector, with contracts awarded for pumped hydro energy storage (PHES) and the country’s first large-scale flow battery.
July 17, 2026
Zinc hybrid cathode battery and storage system maker Eos Energy Enterprises has announced a strategic partnership with the US Department of Defense (DoD) to “enhance the resilience of national defence infrastructure.”