About Power NI
Power NI (formerly known as NIE Energy) is the largest electricity supplier in Northern Ireland, with over 500,000 domestic and commercial customers in the region. Until 2010, NIE Energy was the only electricity supplier available to Northern Irish customers.
Since Which? Switch is unable to switch customers in Northern Ireland, you will not be able to compare Power NI tariffs on the site.
Power NI customer satisfaction survey results
|Area of performance||Star rating|
Which? customer score
|Customer service & Complaints||
|Value for money||
|Bills (accuracy and clarity)||
|Helping you save energy||
Power NI customer score
In September and October 2016 we surveyed 8,917 UK adults who pay for their household energy about their experience with their gas and electricity suppliers.
The percentage customer satisfaction score is based on the responses consumers gave for both overall satisfaction and their likelihood to recommend the energy supplier to a friend. Both questions are given equal weighting, and only those giving a valid response to both questions are included in the analysis. The responses are analysed and scaled to give a rating from 0-100%.
For a full round-up of the Which? Switch energy satisfaction survey results, see our customer satisfaction survey results page.
Power NI fuel mix disclosure
All suppliers have to provide information about the mix of fuels they use to generate the electricity supplied to their customers, together with its environmental impact.
Power NI fuel mix
Natural gas: 70.4%
* Wind, hydro and solar power.
Customer service 0845 745 5455
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You can call us on 0800 410 1149 or 01259 220 235.
Tired of poor customer service from your energy supplier? See how customers rated 23 of the UK's gas and electricity suppliers in our latest survey.
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