UK's Invinity Lands Record Battery Sales Deals with Ideona

04:45 AM EST, 01/02/2026 (MT Newswires) -- Invinity Energy Systems (IES.L) secured its largest-ever combined sales agreements with Ideona Group to supply two vanadium flow battery systems with a total capacity of 20 megawatt hours. Central European Vanadium Storage Kft, on behalf of its parent Ideona, bought the Endurium systems for use in two solar-plus-storage projects in Hungary, according to a Friday release. The agreements are conditional on the British vanadium flow batteries manufacturer receiving a notice to proceed, which is expected to be obtained in the first half, with system deliveries also set to begin during that period.