9 January 2026

Invinity Energy Systems plc

("Invinity" or the "Company")

Secretary of State for Scotland Visits Bathgate

Rt Hon Douglas Alexander MP highlights Invinity's leading role as a UK manufacturer of long duration energy storage

Invinity Energy Systems plc (AIM: IES), a leading global manufacturer of utility-grade energy storage, was delighted to welcome the Secretary of State for Scotland, Douglas Alexander MP, to the Company's Bathgate manufacturing facility yesterday.

Above: Secretary of State Douglas Alexander MP charging an Invinity vanadium flow battery at the Company's Bathgate facility

During a guided tour of the facility led by Invinity's Chair, Neil O'Brien and key members of staff, the Secretary of State charged and discharged an Invinity battery system connected to the Scottish electricity grid and learned about its key safety and low noise characteristics. The Secretary also took the opportunity to learn how these vanadium flow batteries offer a scalable, UK-made solution to reliably and affordably store renewable energy for use on demand.

Above: Secretary of State for Scotland, Douglas Alexander MP (centre) with (L-R) Invinity Chair, Neil O'Brien, Director of Applications Engineering, Nicola Watson, Kirsteen Sullivan MP (Bathgate & Linlithgow) and Technical Support Engineer, Aidan Nelson

Following the tour, the Secretary, accompanied by Kirsteen Sullivan, MP for Bathgate and Linlithgow, learned about the recent commercial progress announced by the Company, discussed the significance of the UK LDES Cap & Floor Scheme, for which Invinity could be supplying up to 16.7 GWh of its products, and was given an update on the progress achieved to date at the Invinity Copwood VFB Energy Hub.

Secretary of State for Scotland, Douglas Alexander said:

"It was great to visit Invinity in Bathgate to meet their workers. The facility shows how Scotland is at the forefront of delivering the infrastructure to help bring energy bills down, while creating high-quality green energy jobs. Energy storage is essential to allow us to fully utilise Scotland's offshore wind resources and cut bills by building a more efficient, resilient grid."

Neil O'Brien, Non-Executive Chair at Invinity said:

"We were pleased to welcome the Secretary of State to our Bathgate facility and demonstrate how Invinity's Scottish-built technology supports a more efficient and affordable energy system. By enabling renewable power to be stored and used when it is needed most, long-duration energy storage plays a vital role in reducing energy system costs and protecting consumers from volatile energy prices. We are proud that our work in Scotland is supporting UK energy security, high-quality clean energy jobs, and the export of British clean-energy technology worldwide."

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Notes to Editors

Invinity Energy Systems plc (AIM: IES) manufactures vanadium flow batteries for large-scale, high-throughput energy storage requirements of business, industry and electrical networks.

Invinity's factory-built flow batteries run continually with no degradation for over 30 years, making them suitable for the most demanding applications in renewable energy production. Energy storage systems based on Invinity's batteries are safe, reliable, and economical, and range in size from 1 to hundreds of megawatt-hours.

Invinity was created in April 2020 through the merger of two flow battery industry leaders: redT energy plc and Avalon Battery Corporation. With more than 190 MWh of systems deployed, contracted for delivery or awarded for projects across more than 90 sites in 17 countries, Invinity is active in all major global energy storage markets and has operations in the UK, Canada, USA and China. Invinity Energy Systems plc is quoted in the UK on AIM.

To find out more, visit invinity.com, sign up to our monthly Investor Newsletter here or contact Investor Relations on via +44 (0)20 4551 0361 or [email protected].

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