REG - Invinity Energy Sys - 2 MWh Sale to U.S. C&I Customer

Invinity Energy SystemsAnnouncement

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RNS Number : 3740G  Invinity Energy Systems PLC  01 June 2026

 

1 June 2026

Invinity Energy Systems plc

 

("Invinity" or the "Company")

 

2 MWh Sale to U.S. C&I Customer

U.S. Department of Energy-funded project will see Endurium Enterprise
batteries deployed to tribal reservation in Ashland, Wisconsin

 

Invinity Energy Systems plc (AIM: IES), a leading global manufacturer of
utility-grade energy storage, is pleased to announce the sale of a 2 MWh
Endurium Enterprise battery system to a U.S. Department of Energy (DOE)-funded
project located in Wisconsin, USA.

 

Project VITALITY (Vanadium Innovation to Advance LDES & Impact Tribal
Sovereignty) will see the battery system installed as part of a microgrid
project at a tribal facility on the Bad River reservation in Ashland,
Wisconsin, that will demonstrate the benefits of vanadium flow batteries in
commercial and industrial (C&I) applications.

 

The overall Project has been awarded $4.7m in funding from the U.S. DOE's
Office of Electricity and is being led by muGrid Analytics, in partnership
with the Bad River Band of Lake Superior Chippewa tribe. muGrid Analytics
delivers investment-grade modelling and predictive control software that
transforms fragile rural grids into optimised, bankable microgrids, providing
a scalable blueprint for nationwide energy resilience.

 

The 2 MWh battery system is planned to be delivered next year and is
anticipated to be manufactured in the USA. Invinity expects to receive $3.36m
out of the $4.7m grant to fund the manufacture and delivery of the battery
system and support further product development activity relating to the
Company's Endurium Enterprise product in the United States. Data collected
from the demonstration will be shared with the U.S. DOE's rapid operational
validation initiative consistent with the recent 12 MWh sale to Pacific
Northwest National Laboratory
(https://irtools.co.uk/88/story/6e302e5d-c1f8-4ae1-9a3a-f7e433fdd814) .

 

Amy Simpkins, Chief Executive Officer at muGrid said:

 

"C&I and community facilities are hungry for new types of battery
technology. We are thrilled to bring Invinity's robust flow battery technology
ecosystem to a very innovative community to demonstrate its effectiveness and
performance. muGrid is proud to bring our advanced controls software to
advance LDES use cases in the commercial marketplace as part of Project
VITALITY and our partnership with Invinity."

 

 

Matt Harper, President at Invinity said:

 

"The C&I market continues to be a significant growth area for Invinity,
and we are delighted to have announced another deal within this exciting
segment. Supported by the Department of Energy, Project VITALITY will
accelerate the optimisation of our Enterprise product for customers in the
U.S., while delivering operational data from the field to help further
validate and enhance the value we deliver to those customers. We are excited
to partner with muGrid and the Bad River Tribe for this opportunity and look
forward to moving into the delivery phase of this project soon."

 

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

 Canaccord Genuity (Nominated Adviser and Joint Broker)      +44 (0)20 7523 8000
 Henry Fitzgerald-O'Connor / Harry Pardoe / Charlie Hammond

 VSA Capital (Joint Broker)                                  +44 (0)20 3005 5000
 Andrew Monk / Andrew Raca

 

Notes to Editors

 

Invinity Energy Systems plc (AIM: IES) is a world-leading manufacturer of
vanadium flow batteries (VFB). Built in our factories in the UK and Canada,
the Company's proven energy storage technology has been deployed at scale and
dispatched gigawatt-hours of electricity for customers across the world to
date.

 

Invinity's safe, scalable and durable battery technology is a trusted and
safer alternative to lithium-ion batteries and our 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 by delivering energy
storage without limits, unlocking low-cost, low-carbon power on-demand.

 

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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