1 November 2022

Invinity Energy Systems plc

("Invinity" or the "Company")

Total Voting Rights

Invinity Energy Systems plc (AIM: IES) (AQSE: IES) (OTCQX: IESVF), a leading global manufacturer of utility-grade energy storage, announces that it has issued 100 Ordinary Shares of €0.50 each (the "New Ordinary Shares") pursuant to the exercise of Short-Term and Long-Term Warrants which were issued as part of the capital raising in December 2021. The shares were issued in October 2022 under the Company's existing block listing entitlement.

Following the issue of the New Ordinary Shares the issued ordinary share capital of the Company comprises 116,049,970 ordinary shares of €0.50 each with one vote per share. Therefore, this figure can be used by shareholders as the denominator for the calculations by which to determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA's Disclosure and Transparency Rules.

The New Ordinary Shares are already admitted to trading on AIM under the Company's existing block listing entitlement. An application has been made for the New Ordinary Shares to be admitted to trading on the Aquis Stock Exchange and dealings are expected to commence on 1 November 2022.

The Company has 14,464,317 Short-Term Warrants and 14,464,481 Long-Term Warrants outstanding, both of which are admitted to trading on the Aquis Stock Exchange.

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Notes to Editors

Invinity Energy Systems plc (AIM: IES) (AQSE: 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 over 33 MWh of systems deployed to date across more than 50 sites in 15 countries, Invinity is active in all major global energy storage markets and has operations in the UK, Canada, USA, China and Australia. Invinity Energy Systems plc is listed on the AIM Market of the London Stock Exchange and on the Aquis Stock Exchange (AQSE). The Company trades in the USA on OTCQX Best Market under the symbol "IESVF".

To find out more, visit invinity.com or call Investor Relations on +44 (0)204 551 0361.