After regulation 5 of the Principal Regulations, the following new regulation shall be inserted—
(5A)
(1) This regulation applies where the supply to a customer’s premises is interrupted for 4 periods, each of not less than 3 hours, during a relevant year.
(2) For the purposes of paragraph (1):
(a) where successive interruptions are caused by or arise during actions taken by the relevant distributor to effect temporary or permanent restoration of the supply to the premises or to other premises affected by the event which caused the interruption of supply to the premises, any temporary restoration of supply for a period not exceeding 3 minutes shall be ignored in calculating the period of the interruption;
(b) the period of an interruption shall be deemed to start at the time that—
(i) the relevant distributor is informed by a customer that the supply to the customer’s premises has been interrupted; or
(ii) the relevant distributor is informed by a person other than the customer or is otherwise made aware by the operation of any automatic system operated by the relevant distributor of circumstances in which the supply to the customer’s premises has been interrupted or may reasonably be expected to have been interrupted; and
(c) an interruption in any of the circumstances described in paragraph (3) shall not be treated as an interruption.
(3) The circumstances described in this paragraph are:
(a) within the period of three hours after the interruption began—
(i) the customer informed the relevant distributor that the customer did not wish the relevant distributor to take any action or any further action;
(ii) the customer agreed with the relevant distributor that the action taken by the distributor before the expiry of that period should be treated as the taking by the relevant distributor of the action required to cause the interruption to cease and, where that action included a promise to perform any action (whether within or after the expiry of that period) the relevant distributor duly performed that promise;
(iii) it was not reasonably practicable for the relevant distributor to take the action required to cause the interruption to cease as a result of the existence of circumstances by reason of which the relevant operator could reasonably have expected that if he took that action he would have been or would be likely to have been in breach of an enactment;
(b) the relevant distributor had given to the customer prior notice of its intention to interrupt the supply to the customer’s premises;
(c) the interruption was a result of the failure of, fault in or damage to the transmission system to which the relevant distributor’s distribution system was connected or of a generating station connected to that transmission system;
(d) the interruption was a result of the failure of a generating station connected to the relevant distributor’s distribution system;
(e) the interruption was one where regulation 4 or 5 applies;
(f) the interruption was a result of the act or default of the electricity supplier to the premises or of the customer;
(g) the cause of the interruption resulted in the interruption of supply to more than 500,000 customers in Great Britain;
(h) the interruption was a result of a civil emergency or act of terrorism.
(4) Where this regulation applies, the relevant distributor shall, except in any of the circumstances described in paragraph (5) pay the prescribed sum to the customer.
(5) The circumstances described in this paragraph are:
(a) the relevant distributor has not received a claim for compensation from the customer within a period of three months after the expiry of the relevant year in which this regulation applies;
(b) the interruptions as a result of which this regulation applies were not all in respect of the supply to the same premises;
(c) the customer (or where more than one person is or has been the customer, at least one such person) was not the customer of the premises to which the supply was interrupted on the occasion of each of the interruptions as a result of which this regulation applies.
(6) In this regulation “relevant year” means a period of 12 months commencing on 1st April.