29 May 2025

Invinity Energy Systems plc

("Invinity" or the "Company")

UK Energy Minister Tours Invinity Bathgate Factory

Energy Minister Michael Shanks highlights Invinity batteries as part of "new generation of storage technologies"

Invinity Energy Systems plc (AIM: IES) (AQSE: IES) (OTCQX: IESVF) a leading global manufacturer of utility-grade energy storage, was delighted to welcome Energy Minister Michael Shanks MP to the Company's Bathgate manufacturing facility yesterday.

​Above: Energy Minister Michael Shanks MP (right) being shown a demonstration of Invinity's fire safety in the Company's R&D lab

As part of a guided tour of the facility led by Invinity staff, the Minister charged and discharged an Invinity battery system connected to the Scottish electricity grid and witnessed a number of demonstrations of the technology's capabilities including its fire safety and low noise characteristics. The Minister was shown plans and work in progress to expand output at the facility and saw newly-manufactured components for the LoDES project, which will see up to 20.7 MWh of Invinity's vanadium flow batteries installed at a site in the UK - the largest project of its type in Europe to date.

​Above (L-R): Kirsteen Sullivan MP, Energy Minister Michael Shanks MP with Invinity CEO Jonathan Marren at the Company's Bathgate facility

Following the tour, the Minister, who was accompanied by Kirsteen Sullivan, MP for Bathgate and Linlithgow, discussed Invinity's role as a UK battery champion and how the Company plans to scale up to meet future demand, with specific reference to the up to 7.7 GW of long duration energy storage ("LDES") that is set to be deployed by 2035 in the UK via programmes such as the UK LDES Cap and Floor Scheme.

Invinity continues to engage closely with a number of developers, including partner Frontier Power, to submit project bids at sites across the UK ahead of the first application window for the scheme, which closes on 9 June 2025.

Energy Minister Michael Shanks said:

"Invinity's state-of-the-art battery facility shows how Scotland is leading the way in the UK's clean power mission, innovating to ensure renewable energy can be stored for longer periods of time to power homes and businesses across the country.

"Our Long Duration Electricity Storage investment scheme will help to unleash billions of investment in a new generation of storage technologies like this, to maximise renewable power, create jobs in communities across the UK and deliver our energy security"

Jonathan Marren, Chief Executive Officer at Invinity said:

"We are delighted to have hosted Energy Minister Michael Shanks MP and his parliamentary colleague Kirsteen Sullivan MP at our Bathgate facility and demonstrate the capabilities of our team and our long duration vanadium flow battery (VFB) technology which is proudly Made in Britain.

"As the UK's leading grid-scale battery manufacturer, at a time when the first application windows under the UK LDES Cap and Floor Scheme is coming to a close, we are delighted to be playing our role in supporting UK energy security and reducing cost to consumers through the deployment of our VFBs."

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Notes to Editors

Invinity Energy Systems plc (AIM: IES) (OTCQX: IESVF) 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 25 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 less than 250 kilowatt-hours to tens 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 and trades in the USA on OTCQX.

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 ir@invinity.com.

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