How do i contact electricity ireland customer service? Customer Service. Phone: 1850 372 372 (8am - 8pm Mon - Sat) Sales. Phone: 1850 30 50 90 (8am - 8pm Mon - Fri & 9am - 5.30pm Sat) Email: [email protected] Home Energy ServicesWhere is electric ireland based in northern ireland? Postal Address: Electric Ireland, 1st Floor, 1 Cromac Quay, The Gasworks, Belfast BT7 2JD, Northern Ireland. For any electrical emergencies or power cuts, please contact NIE Networks on 03457 643 643Where do i send my electric ireland order? Electric Ireland, PO Box 841, South City Delivery Office, Cork T12C825 Industrial and Commercial I&CHow do i get through to out of ireland electricity? The out-of-Ireland department should then be able to patch you through to the relevant department. You can then get back to the business of enjoying your trip with peace of mind. If you’re calling from abroad, the Electric Ireland contact number is +353 1 8529534. Lines are open Monday to Saturday from 8 a.m. to 8 p.m.