First Endurium Enterprise Order

Invinity Energy Systems plc (AIM: IES) (OTCQX: IESVF), a leading global manufacturer of utility-grade energy storage, is pleased to announce the first sale of its Endurium Enterprise product, which was launched earlier this year.

This project will see a 3.5 MWh Endurium Enterprise system, collocated with an existing onsite PV array, deployed at Charles Murgat, an aquaculture business in France. Chosen for its safety and durability characteristics, Invinity's battery system will enable the facility to maximise its use of self-generated solar power, improve resilience and perform other services such as peak load management as required. The installation of vanadium flow batteries is expected to deliver a significant reduction in energy costs for the site whilst improving resiliency and enabling the facility to operate with a reduced carbon footprint, supporting their commitment to environmental and ecological responsibility.

Endurium Enterprise is the latest addition to Invinity's product line and is specifically designed for commercial and industrial ("C&I") businesses looking to deploy proven, safe and cost-effective on-site energy storage to deliver low-cost, low-carbon electricity on demand.

Commencement of the project remains subject to the receipt of relevant construction permits, which are expected to be received soon, with delivery of the batteries therefore expected during H2 2026.

Jonathan Marren, Chief Executive Officer at Invinity said:

"We launched Endurium Enterprise in September this year and this announcement marks our first such sale. Endurium Enterprise is designed for C&I businesses often using the system "behind-the-meter" and the use case by Charles Murgat is exactly the sort that we envisaged.

"The efforts during 2025 by Invinity to reduce the product cost of Endurium are now starting to be rewarded. This sale, which is not reliant on subsidy or grant funding but is justified on a purely commercial basis, is an incredibly exciting milestone and provides an excellent reference case for other businesses looking to reduce their energy supply costs by deploying our vanadium flow batteries.

"Our Enterprise product delivers low-cost, low-carbon energy on demand for C&I customers who look for market-leading safety, sustainability and durability from their energy storage solution. We're looking forward to delivering this project and many more like it in the future."