It could be that your previous bills have been based on estimated reads and this one is based on an actual meter read. Look at the back of your bills under the Usage Details section. If meter readings are estimated, they'll be clearly marked with (E). If your account has been estimated for a period of time, an actual meter read may mean a larger or smaller than expected bill. This is because your account may have been under or overestimated for a period of time and this bill is correcting that.
Is this bill based on an estimated read? If so, read and submit an actual meter read and we will cancel (reverse) this bill and re-bill you using these actual reads.
What period does the bill cover? Your current bill may cover a longer or shorter period than your previous bills. If so, you should check if the daily charge in this bill is in line with previous bills. This is calculated by dividing the total value of the bill by the number of days the billing period covers.
Have you changed the way you use electricity? Your energy consumption can increase for lots of reasons, for example fitting new appliances or machinery, extending your premises or changing your business hours.
The time of year can also impact the amount of electricity you use.
Where are my usage details or meter readings?
Why is my bill estimated?
How do I check the balance on my account?
What other charges might I be billed for?
How long do I have to pay my bill?
Northern Ireland Electricity Pass through Charges 2018/19
When will my direct debit be taken out of my account?
What is a standing charge?
I don't think the amount on my bill is right - what should I do?
Northern Ireland Renewable Obligations cost (ROCs) adjustment and Climate Levy Change (CCL)
What is a 'Reversal'?
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