RCS - Invinity Energy Sys - Invinity Delivers Europe’s Largest VFB

Invinity Energy SystemsAnnouncement

Tue 07:00

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RNS Number : 9493D  Invinity Energy Systems PLC  12 May 2026

 

12 May 2026

Invinity Energy Systems plc

 

("Invinity" or the "Company")

 

Invinity Delivers Europe's Largest Vanadium Flow Battery

Flagship project hits next milestone ahead of connection to GB grid

 

Invinity Energy Systems plc (AIM: IES), a leading global manufacturer of
utility-grade energy storage, is pleased to confirm that delivery of a 20.7
MWh Vanadium Flow Battery system has now been completed at the Copwood VFB
Energy Hub
(https://invinity.com/invinity-super-battery-delivered-uk-first/?utm_source=rns)
ahead of the project connecting to the grid and commencing operation later
this year.

 

 

Invinity's battery system, which has a capacity roughly equivalent to the
daily electricity requirement of 3,000 homes, is paired with a 3 MWp solar
array at the site in East Sussex, UK and once operational, will be Europe's
largest vanadium flow battery and a UK-first of a kind at this scale.

 

At a time when national energy security remains a key consideration globally,
this project aims to demonstrate how Long Duration Energy Storage (LDES) in
the form of Invinity's Vanadium Flow Batteries, can help unlock more low-cost,
home-grown renewable energy for the grid and reduce reliance on imported
fossil fuels such as natural gas. The project will act as a flagship
demonstration project in the UK with an announcement expected shortly on
Ofgem's LDES Cap and Floor scheme which could see similar projects rolled out
nationwide.

 

The Company expects the project to connect to the grid and begin generating
revenue before the end of this year, subject to final confirmation from the
local Distribution Network Operator. Details of a site open day for
shareholders and prospective customers will be communicated in due course.

 

Read more about the project on Invinity's website here
(https://invinity.com/invinity-super-battery-delivered-uk-first/?utm_source=rns)
.

 

Stuart Nivison, Head of Portfolio Management, National Wealth Fund said:

 

"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."

 

Jonathan Marren, Chief Executive Officer at Invinity said:

 

"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 we are serious about delivering a power system dominated by renewables, we
must stop wasting the energy we 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."

 

Stay up to date with news from Invinity. Join the distribution list for the
Company's monthly investor newsletter here
(https://invinity.us13.list-manage.com/subscribe?u=5b8cb168d806f615c67752bf8&id=26dd4280e1)
.

 

Enquiries:

 

 Invinity Energy Systems plc                           +44 (0)20 4551 0361
 Jonathan Marren, Chief Executive Officer

 Joe Worthington, Senior Director, Corporate Affairs

 

Notes to Editors

 

Invinity Energy Systems plc (AIM: IES) is a world-leading manufacturer of
vanadium flow batteries for energy storage. Built in our factories in the UK
and Canada, 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. Our products
address the challenges of our global energy system, unlocking the power of
renewable generation by delivering energy storage without limits.

 

To find out more, visit invinity.com (https://invinity.com/?utm_source=rns) ,
sign up to our monthly Investor Newsletter here
(https://invinity.us13.list-manage.com/subscribe?u=5b8cb168d806f615c67752bf8&id=26dd4280e1)
or contact Investor Relations on via +44 (0)20 4551 0361 or ir@invinity.com
(mailto:ir@invinity.com) .

 

 

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