A roundup of long-duration energy storage (LDES) news from around the world this week.

The US Department of Energy (DOE) has shortlisted the projects to receive US$325 million for long-duration energy storage (LDES), with technology providers including Energy Dome, Invinity, Form Energy and Redflow.

Hydrostor “remains fully committed” to its 4GWh advanced compressed air energy storage (A-CAES) project in California, its president told Energy-Storage.news as it considers alternative locations and delivery dates.

Energy Vault will reveal new form factors to its EVx gravity-based energy storage solution which could deliver the “lowest cost of energy storage in the world”, CEO Robert Piconi claimed to Energy-Storage.news.

RWE has been awarded a long-term contract for a 50MW/400+MWh battery storage project in New South Wales, Australia.

Invinity Energy Systems will deploy a partially grant-funded 7MW/30MWh vanadium redox flow battery (VRFB) system in the UK as the company scales up its project sizes.

‘CO2 Battery’ startup Energy Dome was only founded in 2020 but has drawn the attention of media and investors alike already.

California utility Clean Power Alliance has inked a 15-year PPA with NextEra Energy Resources for an eight-hour duration energy storage project.

Long-duration energy storage (LDES) firm e-Zinc is targeting a gigafactory in the US by 2025 and is considering adjusting its planned project with Toyota Tsusho, it told Energy-Storage.news.