Invinity Energy Systems has been selected to design a GWh-scale vanadium flow battery for deployment at a new technology hub in Switzerland.

Invinity, a British-Canadian firm, said on May 21 it had been selected by the FlexBase Group to provide the VFB for the Technology Centre Laufenburg following a competitive tendering process.

The Laufenburg project will feature an AI data centre and technology campus, integrated with a VFB of up to 1.5GWh capacity that could be increased to over 2GWh in phases. The battery will be used to support the integration of renewable energy on to the site and provide grid stabilisation.

The tech centre project, which will span more than 40,000m², broke ground in May 2025 and is under construction.

Invinity said it will now start the engineering phase of the project, which should continue into next year and will generate engineering revenue for the company based on achieving development milestones.

Following the successful conclusion of the engineering design phase, a purchase order for the battery system will be issued. This will allow Invinity to start the phased manufacturing of datacentre-optimized VFB modules.

FlexBase Group founder and CEO Marcel Aumer said Invinity had proven to be the strongest partner by presenting the most compelling overall package with the lowest life-cycle costs.

“Invinity’s vanadium flow technology is perfectly suited for our project due to its safety — particularly its non-flammability — its cycle stability, and its flexibility in application.”

Separately, Invinity said on May 12 it had completed the delivery of 20.7MWh of VFBs for the Copwood energy hub in the English county of East Sussex.

Invinity said Copwood is set to become Europe’s largest VFB installation when it enters service later this year. The project pairs 90 VFBs with a 3MW solar array.