Invinity Energy Systems (LSE:IES) has accelerated its cost‑reduction programme and says the target is a minimum 66% reduction in product cost per kWh compared with the VS3 to be delivered by late 2026.
The company, a manufacturer of vanadium flow batteries, has launched an enhanced programme with over 50 individual workstreams covering higher battery capacity within the same footprint, fewer components, lower‑cost production techniques and supply chain and quality efficiencies.
Several workstreams are already complete with immediate impact on units due for delivery later this year and management expects the majority of the programme to be delivered by late 2026.
In the year to date, Invinity has manufactured or delivered more than 40 MWh and its VFBs have now discharged over 8.7 GWh for customers in service. The 20.7 MWh Invinity Copwood VFB Energy Hub in East Sussex is expected to be fully delivered this week and, subject to final DNO confirmation, to connect and start generating revenue in H2 2026 as the largest vanadium flow battery project in Europe.
Invinity plans to establish a US manufacturing facility later this year to complement its existing customer service site in Vista, California.
The commercial pipeline has grown across Europe, North America and Asia and includes projects under the UK LDES Cap and Floor scheme where Ofgem decisions are expected in the near term.
Two Hungary solar‑plus‑storage projects awaiting notice to proceed are now unlikely to contribute revenue in 2026 due to third‑party delays, but contracts have been amended to allow deployment to an alternate site and the partner Ideona reaffirmed its intent to work with Invinity.
A 12 MWh PNNL project supported by US DOE funding is now expected to deliver in 2026 and three further DOE‑backed projects have concluded contracting and can begin final negotiations for 2027 delivery.
The audit for the year ended 30 December 2025 is well advanced and the company remains on track to publish its 2025 Annual Report and Financial Statements before 30 June.
"Our Endurium cost‑reduction programme is delivering transformational results, strengthening our competitiveness and expanding the commercial markets we can address," Jonathan Marren said.
