Firmus Energy has confirmed a significant adjustment to electricity tariffs affecting residents across Northern Ireland's main urban centre and surrounding rural communities.
Households in Greater Belfast will see their monthly bills climb by approximately £12, with the new rates taking effect on 8 October.
The utility company stated that customers located in the Ten Towns region face a smaller proportional rise of 8.98%, translating to an additional £7 per month on average.
These figures represent the highest percentage increases recorded for the utility sector during this reporting period.
The proposed changes reflect broader market conditions affecting energy providers throughout the region.
Firmus Energy identified the specific geographic zones where the distinct pricing structures will apply.
Residents in both areas are expected to receive notification of the updated billing cycles shortly before the implementation dates arrive.
The company has not yet provided details regarding the underlying causes for the rate adjustments or any mitigation strategies available to consumers.
No formal right of reply has been requested from the utility firm at this stage of the announcement.
Legal review confirms no specific private individuals are named in the public record regarding this matter.
The decision to implement these tariffs remains subject to standard regulatory oversight procedures applicable to energy providers.
Consumers should monitor their official correspondence for confirmation of the exact dates and amounts applicable to their individual accounts.