An electricity supplier buys energy and sells it to customers. It is the company that issues your electricity bill and deals with any queries you have about your bill. Suppliers need a licence from the Utility Regulator to supply electricity to customers in Northern Ireland. They buy energy from the all island electricity market (also known as the Single Electricity Market or SEM) and pay Northern Ireland Electricity (NIE) 'use of system' charges to transport it over the electricity network to your home.

There are a number of electricity suppliers operating in the Northern Ireland market.  A list of supplier contact information is available from the Utility Regulator and the Consumer Council [links open in a new window].