Invinity Selected to Supply 2 MWh Endurium Enterprise™ Vanadium Flow Battery for U.S. DOE-Backed Project VITALITY in Wisconsin



Sourceinvinity.com, 1 June 2026

Project VITALITY to Demonstrate Long-Duration Energy Storage Benefits for Commercial and Industrial Applications

Invinity Energy Systems plc, a leading global manufacturer of utility-grade vanadium flow batteries (VFBs), has announced the sale of a 2 MWh Endurium Enterprise battery system for a U.S. Department of Energy (DOE)-funded microgrid project at the Bad River reservation in Ashland, Wisconsin. The project represents another significant deployment of vanadium flow battery technology in the growing commercial and industrial (C&I) energy storage market. 

The installation forms part of Project VITALITY (Vanadium Innovation to Advance Long-Duration Energy Storage & Impact Tribal Sovereignty), an initiative designed to demonstrate the value of vanadium flow batteries in enhancing energy resilience and supporting sustainable economic development for tribal communities. The project is being led by muGrid Analytics in partnership with the Bad River Band of Lake Superior Chippewa Tribe and has received US$4.7 million in funding from the DOE Office of Electricity. 

Under the project, Invinity's Endurium Enterprise battery system will be integrated into a microgrid serving a tribal facility on the reservation. The system is scheduled for delivery next year and is expected to be manufactured in the United States. Invinity anticipates receiving approximately US$3.36 million from the DOE grant to support the manufacture and deployment of the battery system, as well as ongoing product development activities related to its Endurium Enterprise platform in the U.S. market. 

The project will also contribute valuable operational data to the DOE's rapid operational validation initiative, helping to further demonstrate the performance, reliability, and commercial value of vanadium flow battery technology in real-world applications. 

Amy Simpkins, Chief Executive Officer of muGrid Analytics, commented:

"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 of Invinity Energy Systems, added:

"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."

The Wisconsin project further strengthens Invinity’s position in the rapidly expanding long-duration energy storage sector. By combining advanced vanadium flow battery technology with intelligent microgrid controls, Project VITALITY aims to provide a replicable model for resilient, low-carbon energy infrastructure that can be deployed across rural and remote communities throughout North America.