Market data, financing, revenue models and LDES investment analysis
ESS Inc CEO Drew Buckley announced a strategic pivot towards sodium-ion storage, citing nearly $1 billion in early-stage opportunities. The company is adopting a measured approach to its iron flow technology.
Zhar Research forecasts the redox flow battery market will exceed $20 billion by 2044. The market is pivoting towards beyond-grid sectors like mines, islands, and telecom towers.
Australian Vanadium Limited has cleared a planning hurdle for its Tenindewa processing facility, securing a domestic supply of high-purity vanadium for flow batteries. Meanwhile, new joint ventures are targeting integrated long-duration storage for Western Australia's mining operations.
As the grid transitions, the limitations of 4-hour lithium-ion batteries are driving the market toward long-duration energy storage, with flow and iron-air batteries offering compelling economic advantages for multi-day deficits.
Driven by the growing adoption of vanadium redox flow batteries, the global ferro vanadium market is projected to expand to $8.8 billion by 2035, with China leading the growth.
The global iron-air battery market is projected to reach US$14.27 billion by 2035, driven by massive capital injections. Form Energy recently closed a US$270 million credit facility and raised US$750 million in Series G funding to scale its 100-hour storage systems.
The global vanadium supply chain is evolving rapidly, with Idemitsu expanding exploration in Queensland, Largo optimizing high-purity production, and new common user facilities supporting local processing.
Vanadium redox flow battery demand increased by 47% in 2024, driven by massive grid-scale deployments in China. Analysts project a 7.5% CAGR for the energy storage segment through 2031.
Major international partnerships and capacity expansions are accelerating the commercialization of vanadium flow batteries, pushing the technology into the gigawatt-hour realm.
Driven by the massive power demands of artificial intelligence, planned long-duration energy storage capacity in the United States has surged fivefold since early 2025.
Invinity Energy Systems reported a sharp rise in H1 2026 orders and revenue, while advancing massive vanadium flow battery projects in Europe, the UK, and the US.
Iron-air battery pioneer Form Energy has raised $750 million in Series G funding, bringing total equity to over $2 billion. The company's commercial backlog has surged to 80 GWh, driven by major partnerships.