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ESB Networks Emergency and Loss of Supply Contact Information

Please call this number to report an emergency or a loss of supply.

T: 1800 372 999 (24/7 service)
From Abroad: 00353 21 238 2410 (24/7 service)

By Post

ESB Head Office 
27 Fitzwilliam Street Lower
Dublin 2
D02 KT92

Contact Number (General Enquiries)

T: +353 1 676 5831 

What we do

Under regulatory arrangements approved by the Commission for Regulation of Utilities (CRU), ESB’s licensed functions as the owner of the transmission and distribution electricity networks in Ireland (Transmission Asset Owner and Distribution Asset Owner) are carried out by ESB staff assigned to ESB Networks business unit, managed by ESB Networks DAC (an ESB subsidiary company). The ESB Networks business unit also carries out the functions of ESB Networks DAC as the licensed Distribution System Operator. Further information on these regulatory arrangements is available here.

Email & Phone

T: 1800 372 757
Monday to Friday: 8.30am to 6pm
Saturday: 8.30am to 1.30pm

From Abroad: 00353 21 238 6555

If possible please have your MRPN Number to hand when calling.


Power Outages (

Networks Emergency and Loss of Supply Contact Information

T: 1800 372 999 (24/7 service)
From Abroad: 00353 21 238 2410 (24/7 service)

Please call this number to report an emergency or a loss of supply. When you phone us you will be asked to choose one of two options. One of the options is for reporting a loss of supply, while the other option is specifically for emergency calls i.e. for reporting damage to networks through cable dig-ins or dangerous situations such as fallen power lines. Note: Whenever possible, this service will provide the caller with details of existing faults and estimated restoration times. If necessary, the caller can also choose to speak to a customer service agent.

What we do

Instead of talking about ourselves, we’d like to talk about how you’re at the heart of everything we do. Whether you’re a residential or business customer, our ambition is to always offer you the most relevant, affordable and innovative energy solutions that answer the way you use our electricity or gas services. We call this ’Smarter Living’ - a way of understanding and answering your needs so you can enjoy our energy with more control and in sustainable ways. ‘Smarter Living’ also defines our approach to supporting community initiatives and sponsorships.

Email and Phone

T: 1800 372 372 Monday to Saturday: 8am to 8pm 

T: 1800 305 090
Monday to Friday: 8am to 8pm
Saturday:9am to 5.30pm

Home Services/Home Energy Services 
T: 1800 372 333
Monday to Friday: 8am to 6pm

International Contact Number
T: 00353 1 852 9534

By Post

Electric Ireland
PO Box 841
South City Delivery Office
Co Cork

For more information, or for any queries, please contact us on:

Phone: 00 353 1 258 3799 (customer care line available 24/7)
Address: ESB Head Office, 27 Fitzwilliam Street Lower, Dublin 2, D02KT92, Ireland

ESB ecars in Northern Ireland

Phone: 00 44 345 601 8303 (customer care line available 24/7)

What we do

ESB International offers services to utilities and governments spanning the entire project lifecycle, from initial audits and feasibility studies, to the specification and management of major capital projects. The starting point in all cases is to develop a deep understanding of the client needs, then finding the solution that works best for them, maximising value added and becoming co-creators in their energy strategies.

Email and Phone

T: 00353 1 703 8000
F: 00353 1 703 8088

By Post

ESB International
One Dublin Airport Central
Dublin Airport
Co. Dublin
K67 XF72


ESB Telecoms
Swift Square, Northwood Park
Santry, Dublin 9
D00 X8PT



Email and Phone


T: 01-7026009

All media enquiries outside of normal business hours (9am to 5pm) and weekends, please contact the Out of Hours number at: 087-255 7186


Our London office represents and supports ESB's growing business activities across the UK, covering business development and public and regulatory affairs. As part of their remit, the London team also work closely with both ESB International and ESB Trading.

If you would like to get in touch, you can reach us at:

2nd Floor
16-19 Eastcastle Street
United Kingdom


Media Enquiries

For all media enquiries regarding ESB's UK operations, please contact the Corporate Communications Team.

T: 0345 60 13 372