Long-duration energy storage (LDES) developer-operator Hydrostor intends to enter its compressed air storage project into Ontario, Canada’s recently announced LDES procurement.

What are the system needs that LDES is going to solve, and what technologies are most appropriate for those applications?

How much long-duration energy storage (LDES) does the UK system need, is the government’s cap-and-floor the right way to procure it, and what does the long-term picture look like?

We look at the potential of flow batteries for LDES and compare the leading providers’ offerings and trajectories.

Form Energy, Noon Energy and Ore Energy are all commercialising proprietary 100-hour battery technologies for LDES applications, but how do they compare on metrics like cost, energy density and round-trip efficiency? We look at what they have revealed, as well as what they haven’t.

Envision Energy’s director of energy storage solutions, Michael Koller, speaks with Energy-Storage.news at Energy Storage Summit 2026 in London, UK.

We caught up with the CEO of owner-operator BW ESS, Erik Strømsø, about the firm’s next deployment plans, tolling trends, procurement and LDES, with its 11.5-hour Bannaby BESS in Australia further proof of lithium-ion’s long-duration potential.

Energy Storage Summit 2026 finished yesterday, having brought the industry together for its first major meeting of the year.

In this US news roundup, CC Power signs an agreement with Hydrostor for 400MWh of its Willow Rock LDES project, PowerSecure builds microgrids in New Mexico, and ESS Inc acquires VoltStorage.