The Energy to Thrive CORE invites students in grades 1 through 5 to help us promote electrical safety through our annual Electrical Safety Poster Contest. CORE 0 X f in O ELECTRIC COOPERATIVE WWW.CORE.Coop The Energy to Thrive CORE invites students in grades 1 through 5 to help us promote electrical safety through our annual Electrical Safety Poster Contest . CORE 0 X f in O ELECTRIC COOPERATIVE WWW.CORE.Coop