UK Facility Pioneers Frozen Air Technology for Long-Term Renewable Energy Storage

2026-06-04 global

London, Thursday, 4 June 2026.
A British plant is revolutionizing grid stability by storing renewable energy as liquid air at -196°C, offering a 50-year lifespan and weeks of charge to rival standard batteries.

A Cryogenic Solution to Grid Volatility

At the Trafford Energy Park near Manchester, United Kingdom, Highview Power is constructing the nation’s first commercial-scale liquid air energy storage (LAES) facility on the site of the decommissioned Carrington Power Station [1]. The technology functions by utilizing cheap, surplus electricity from the grid to clean, compress, and cool air to minus 196 degrees Celsius, effectively banking renewable power as a cryogenic liquid [1]. When energy demand peaks, the system pumps the liquid air, warms it back to ambient temperature, and allows it to rapidly expand into a gas that spins a turbine generator [1]. On June 1, 2026, Spanish engineering firm Lointek completed the design and manufacture of the thermal systems for this facility, marking a critical milestone in its development [6].

The Efficiency Debate and Market Growth

Despite its longevity, LAES technology faces scrutiny regarding its round-trip efficiency—the ratio of energy put into the system versus the energy retrieved. Highview Power estimates its standalone system efficiency at 50% to 60% [1]. However, an independent review conducted in early 2025 placed the round-trip efficiency of liquid air systems significantly lower, between 20% and 50% [1]. By comparison, traditional lithium-ion batteries boast efficiencies of 80% to 95%, while pumped storage hydropower (PSH)—which currently accounts for 88% of all utility-scale energy storage in the United States—operates at 65% to 85% efficiency [1][4]. The high initial capital expenditures required for complex cryogenic facilities also present a barrier to entry [2].

Financing the Future of Long-Duration Storage

To bridge the gap in grid stability, Highview Power is executing an ambitious £3 billion program to build four larger plants, aiming for a total portfolio of 7 gigawatt-hours (GWh) [1]. This includes the Carrington plant and two massive 3.2 GWh projects located at Hunterston in Scotland and Killingholme in Lincolnshire [1]. The company’s expansion is fueled by over £500 million in cumulative funding from heavyweights such as the UK Infrastructure Bank—now operating under the National Wealth Fund—Goldman Sachs, Centrica, and Rio Tinto [1]. In late May 2026, Highview further signaled its growth phase by appointing former Neptune Energy CEO Peter Jones as its new chief executive amid a senior management reshuffle [6].

Global Expansion and Hybrid Integrations

While companies continue to deploy advanced short-duration commercial lithium systems—such as the new liquid-cooled cabinets launched by APsystems at the SNEC 2026 exhibition in Shanghai on June 3, 2026 [3]—LAES developers are looking toward hybrid integrations to improve overall efficiency. The technology can be paired with liquefied natural gas (LNG) infrastructure, green hydrogen production, and industrial waste heat to offset its lower standalone efficiency [2]. Highview Power has already demonstrated this versatility internationally, completing a 5 MW demonstration project alongside Sumitomo Heavy Industries at the Hatsukaichi LNG Terminal in Japan [6].

Sources

Energy storage Renewable energy