Invinity and First Nations Utility Batteries Partner to deploy made-in-bc energy storage in Canada. Under Joint Proposal Development Agreement, Invinity and FNUBP will advance energy storage projects across Canada with focus on Indigenous leadership, participation and long-term economic benefit. Monday 22 June 2026 Invinity Energy Systems is pleased to announce a strategic collaboration with the First Nations Utility Batteries Partnership (FNUBP), an Indigenous-led and Indigenous-owned development corporation focused on delivering long-duration energy storage projects across Canada. Under a newly executed Joint Proposal Development Agreement (JPDA), Invinity and FNUBP will work together to identify, develop, and advance battery energy storage system (BESS) projects to support grid reliability, renewable energy integration, and long-term decarbonization objectives, including recent participation in PEI Energy Corporation's RFEOI for BESS, New Brunswick Power's REOI for BESS, and BC Hydro's capacity procurement initiatives expected to follow its Capacity Request for Expressions of Interest (RFEOI). Supporting indigenous-led energy infrastructure. FNUBP was established to initiate, develop, construct, and ultimately own battery energy storage facilities, with a strong emphasis on Indigenous leadership, participation, and long-term economic benefit. Through this collaboration, FNUBP will act as lead developer, managing commercial, regulatory, siting, and financing activities for proposed projects. Invinity has been selected by FNUBP as its long-duration energy storage technology provider, reflecting the suitability of their its vanadium flow battery systems for utility-scale applications that require durability, safety, and long operational lifetimes. These, and other qualities specific to Invinity's BESS equipment, align well with the values of Indigenous Communities. "This collaboration reflects our shared commitment to building resilient, future-proof energy infrastructure in partnership with Indigenous-led organizations. Engaging FNUBP's development expertise to deploy Invinity's made-in-BC long-duration batteries will accelerate the delivery of robust, reliable low-carbon infrastructure. With Canada embarking on a new national electricity strategy, this partnership is timely in proving how bold capacity goals can be met effectively and efficiently by building partnerships among governments, industry and First Nations." - Matt Harper, President, Invinity Energy Systems Enabling long-duration energy storage at scale. As part of the agreement, Invinity will supply long-duration energy storage solutions based on its Endurium(TM) vanadium flow battery platform for projects developed by FNUBP. The parties will collaborate closely on technical design, system optimization, and proposal development to ensure projects are well-positioned to meet customer requirements, including those of utilities and renewable energy generators. The collaboration is expected to support a portfolio of long-duration energy storage projects across multiple sites, with a particular focus on British Columbia and potential participation in utility-led procurement processes, including capacity-focused solicitations. Vanadium flow batteries are well-suited to long-duration applications due to their ability to deliver energy over extended periods, their high cycle life, and their inherent safety profile - attributes that are increasingly important as BC Hydro and other utilities seek firm, dispatchable capacity to complement intermittent renewable generation. "BC Hydro's Capacity RFEOI highlights the growing importance of long-duration storage as part of the province's future electricity system," said Mike Wise, Partner at FNUBP. "Working with Invinity allows FNUBP to pair Indigenous-led project development with world-class, proven long-duration storage technology, positioning our projects to support system reliability while creating meaningful, long-term value for First Nations and their communities." - Mike Wise, Partner, FNUBP A platform for future growth. Beyond British Columbia, Invinity and FNUBP have also agreed to explore opportunities to collaborate on long-duration energy storage initiatives in other provinces and through future procurement programs across Canada. By working together from early-stage project development through proposal submission and technical definition, the collaboration is designed to create clarity, alignment, and efficiency as projects move toward construction and operation. "This agreement establishes a strong foundation for long-term collaboration," added Harper. "It demonstrates how technology providers and Indigenous-led developers, working together, can enhance our utility capacity while accelerating both energy sovereignty and clean energy deployment at scale." About Invinity Energy Systems. Invinity Energy Systems plc is a world-leading manufacturer of vanadium flow batteries for energy storage. Built in its factories in Canada and the UK, the Company's proven, commercialised, longer duration energy storage technology has been deployed at scale and dispatched gigawatt-hours of electricity for customers across the world. Invinity's safe, scalable and durable battery technology is a trusted and safer alternative to lithium-ion batteries. Endurium VFBs are engineered for heavy-duty, high throughput applications, they don't wear out, cannot catch fire and are designed to be operated for 30 years or more. Its products address the challenges of its global energy system, unlocking the power of renewable generation by delivering energy storage without limits. About First Nations Utility Batteries (GP) Inc. First Nations Utility Batteries (GP) Inc. is an Indigenous-led development corporation focused on advancing turnkey development and Indigenous ownership of BESS in British Columbia and across Canada. FNUBP's mission is to enable resilient, low-carbon energy infrastructure while supporting Indigenous leadership, participation, and long-term economic outcomes.

IN BRIEF: Invinity Energy reports battery system sale to Pacific Steel. 15th Jun 2026 11:58 Invinity Energy Systems PLC - London-based manufacturer of utility-grade energy storage systems - Reports the sale of a 32 megawatt-hour battery system to California-based reinforcing steel fabricator, Pacific Steel Group. Explains this is for installation at Pacific Steel's Mojave Micro Mill project in California, with the battery being supported by grant funding from the California Energy Commission's LDES Program. Adds that once delivered, it is expected to be the largest vanadium flow battery system in North America to date. Says project construction at the mill began in June last year, with the mill anticipated to enter operation in the second half of next year. Adds that delivery of the batteries is expected to start in the first quarter of next year, with associated revenues recognised at this point. "I'm very pleased that Invinity has again been selected to deliver the heavy-duty storage solutions required by large-scale businesses. Pacific Steel Group's mission is to prove an innovative path towards a fundamentally cleaner steel industry. We believe this project will prove that Invinity's products are second to none in making that mission a reality," says Invinity President Matt Harper. Current stock price: 32.58 pence, up 5.1% on Monday morning in London 12-month change: up 89% By Christopher Ward, Alliance News reporter Related Shares:

Invinity "super battery" Delivered in UK first. Invinity has completed delivery of its 20.7 MWh Copwood VFB Energy Hub in East Sussex, set to become Europe's largest VFB installation when it enters service later this year. Tuesday 12 May 2026 Invinity Energy Systems has completed the delivery of 20.7 MWh of Vanadium Flow Batteries to the Copwood VFB Energy Hub (Copwood) in East Sussex, set to become Europe's largest vanadium flow battery (VFB) installation when it enters service later this year. The project pairs 90 vanadium flow batteries - a form of long-duration energy storage (LDES) - with a 3 MW solar array to enable more home-grown, low-cost solar power to be used when Britain actually needs it - in the evenings, overnight and at peak demand. It will reduce reliance on comparatively more expensive fossil fuel generation, primarily in the form of imported natural gas. Above: The Copwood VFB Energy Hub in Uckfield, East Sussex The project, a UK-first at this scale, highlights the growing importance of British energy security amid rising energy prices and at a time when energy security remains high on the national agenda due to the ongoing conflict in the Middle East. Turning cheap solar into reliable power - without the fire risk Unlike conventional batteries designed for short bursts, vanadium flow batteries are built for long-duration "energy shifting" - storing power for hours and releasing it later. The battery array at Copwood, which has a capacity roughly equivalent to the daily electricity needs of around 3,000 homes, will store surplus daytime solar and discharge it back to the grid in the evening and overnight as required. Invinity's battery technology also addresses an issue increasingly relevant to communities and planners: safety. Invinity's vanadium flow batteries have no fire risk, use a water-based electrolyte, and are engineered for long operating life (designed for decades of heavy-duty cycling). The technology's safety profile has proven important in local planning discussions, where battery fire risk and community impact can be contentious. Above: Invinity team members loading the last battery at the Company's Motherwell facility. "This project is about far more than a single battery system - it is proof that Britain can build the infrastructure needed to transform the country into a clean energy superpower. "If Invinity Energy Systems plc is serious about delivering a power system dominated by renewables, Invinity Energy Systems plc must stop wasting the energy Invinity Energy Systems plc work so hard to generate. Long-duration storage is the missing piece that turns intermittent wind and solar into reliable, on-demand power. "By building Europe's largest vanadium flow battery here in Britain, and manufacturing it in Scotland, we're showing that the clean energy transition can strengthen our energy security, cut system costs and create skilled industrial jobs at home." - Jonathan Marren, Chief Executive Officer, Invinity Energy Systems A flagship reference site as Ofgem's cap-and-floor decisions near The project demonstrates how LDES can help tackle price volatility by reducing dependence on costly peaking plants and comes at an important time for the industry as Britain prepares for the next stage of investment in long-duration energy storage. Ofgem is expected to announce key decisions shortly under its LDES Cap and Floor support scheme, designed to unlock investment in large-scale "super battery" projects across the UK. Invinity's battery technology has been selected for multiple project bids under the scheme, and a successful rollout could support substantial industrial growth, including the creation of up to 1,000 jobs as the Company scales manufacturing in Britain. London Stock Exchange-listed Invinity has facilities across the Scottish Central Belt in Motherwell and Bathgate where the firm undertakes assembly of its vanadium flow batteries for UK and European customers, alongside product development, customer support and research and development activities. Invinity utilised investment from the UK's National Wealth Fund, a major shareholder in the Company, in delivering the project. "Invinity's progress at the Copwood VFB Energy Hub demonstrates how targeted public investment can accelerate the manufacturing of new technology, support the transition to clean power, boost energy security and create skilled jobs in the UK." - Stuart Nivison, Head of Portfolio Management, National Wealth Fund The Copwood VFB Energy Hub also received grant funding from the Department for Energy Security and Net Zero (DESNZ) as part of the government-backed Longer Duration Energy Storage (LoDES) demonstration programme, supporting the development of next-generation UK energy infrastructure.