VARENNES, Quebec–(BUSINESS WIRE)–EVLO Energy Storage Inc. (EVLO), a fully integrated battery energy storage system provider and wholly owned subsidiary of Hydro-Québec, today announced that its latest generation battery energy storage system (BESS), the EVLOFLEX, has achieved UL 9540 certification. The certification, administered by a North American independent third party, is the leading safety standard for grid-connected batteries such as EVLO’s utility-scale BESS solutions. UL 9540 certifi