The world’s first grid-scale liquid air energy storage (LAES) plant was officially launched on 5th June 2018. The 5MW/15MWh LAES plant, located at Bury, near Manchester will become the first operational demonstration of LAES technology at grid-scale.
Professor John Loughhead OBE FREng FTSE, Chief Scientific Adviser at the Department for Business, Energy and Industrial Strategy (BEIS), will officially switch on the plant located at the Pilsworth landfill gas site in Bury. The LAES plant has been developed in partnership with recycling and renewable energy company, Viridor, and has been enabled in part by over £8m in funding from the UK government.
Professor John Loughhead, Chief Scientific Advisor at BEIS said,
“We welcome the accomplishment of Highview Power, working together with their project site partner Viridor, to successfully build and operate this grid-scale liquid air energy storage technology demonstration plant.
The deployment of smart, flexible technologies, such as energy storage, will help to ensure the UK has a secure, affordable and clean energy system now and in the future in keeping with the priorities within UK Government’s Modern Industrial Strategy.
We’re pleased to have been able to support the Pilsworth demonstrator through our Energy Innovation Programme aimed at accelerating the commercialisation of innovative clean energy technologies and processes.”
Gareth Brett, CEO at Highview Power, said,
“Support from Government, our partners and our supply chain, has enabled Highview Power to successfully design and build the world’s first grid-scale liquid air energy storage plant here in the UK. The plant is the only large scale, true long-duration, locatable energy storage technology available today, at acceptable cost. The adoption of LAES technology is now underway, and discussions are progressing with utilities around the world who see the opportunity for liquid air energy storage to support the transition to a low-carbon world.”
After the launch, demand response aggregator KiWi Power will be able to draw energy from the LAES plant to power about 5,000 average-sized homes for around three hours. The plant will demonstrate how LAES can provide a number of reserve, grid balancing and regulation services. Yet the opportunity is far greater: liquid air energy storage technology can scale to hundreds of Megawatts in line with the energy demand of urban areas the size of small towns up to large cities. This means that LAES plants could easily store enough clean electricity generated by a local windfarm to power a town like Bury (around 100,000 homes) for many days, not just a few hours.
With LAES technology now being proven at scale, the plant paves the way for the wider adoption of LAES technology globally. True long-duration energy storage is critical to enable the broader deployment of renewable energy; overcome the intermittency of solar and wind energy; help smooth peaks and troughs in demand; and provide the UK with a stable and secure source of homegrown energy.
LAES technology makes use of a freely available resource, the air, which is stored as a liquid and then converted back to a gas, involving an expansion process that releases stored energy, and this drives a turbine to generate electricity. In addition to providing energy storage, the LAES plant at Bury converts waste heat to power using heat from the on-site landfill gas engines.
No exotic metals or harmful chemicals are involved and the process does not release any carbon emissions. The plant comprises mostly of steel, which has a lifespan of between 30 to 40 years, in comparison with 10 years for batteries. At the end of life, a LAES plant can be decommissioned and the steel recycled. LAES plants can be located at the point of demand which makes them highly flexible and able to supply energy to help urban areas keep the lights on.