Liquid Air Energy Storage (LAES)

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Future Tech

Curated by Surfaced Editorial·Energy·2 min read

Liquid Air Energy Storage (LAES) works by using electricity to cool and liquefy ambient air, storing it as cryogenic liquid oxygen and nitrogen. When power is needed, the liquid air is vaporized, expanded through a turbine to drive a generator, and then reheated using waste heat. This process leverages established industrial gas technologies for grid-scale energy storage. Highview Power is the primary commercial developer, with significant research also conducted by universities like Imperial College London. LAES technology is currently in the early commercialization phase, with several demonstration plants and initial utility-scale projects. Highview Power recently broke ground on a 50MW/250MWh LAES plant in Carrington, UK, expected to be operational by 2024. Unlike chemical batteries, LAES systems are non-flammable, use abundant resources (air), and can provide multi-hour to multi-day storage.

Why It Matters

The critical problem is the need for flexible, long-duration energy storage to integrate intermittent renewables and improve grid resilience, addressing a global grid modernization market worth $270 billion annually. If mainstream, LAES would allow cities to store weeks' worth of renewable energy, ensuring stable power even during prolonged periods of low wind or sun. Investors in renewable infrastructure and industrial gas companies would gain, while coal and gas power plants facing displacement would be negatively impacted. Main barriers include achieving high round-trip efficiency (currently around 55-70%) and optimizing the integration of waste heat sources to improve performance. Widespread deployment is anticipated from 2030 onwards, becoming a significant part of the energy mix by 2040. The UK is a frontrunner in LAES development, with interest growing in the US and Europe. A second-order consequence could be the co-production of liquid nitrogen and oxygen for industrial or medical uses, creating additional revenue streams and resource efficiency.

Development Stage

Early Research

Advanced Research

Prototype

Early Commercialization

Growth Phase

Read full article at highviewpower.com →

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