Heliox delivers electric bus chargers in Czech Republic and Norway November 7, 2018 | Europe News Heliox has supplied its OC 450-kW fast charging system to Ekova Electric, a subsidiary of Dopravní Podnik Ostrava (DPO), in the Czech Republic. Ekova Electric has supplied two el... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password