Determination on National Grid’s proposal for reducing visual amenity impacts in the Dorset Area of Outstanding Natural Beauty

Decision

As part of the RIIO1 price control, Ofgem introduced a new policy for electricity transmission owners (TOs) to reduce the visual impact of pre-existing infrastructure in nationally designated areas. The expenditure cap for all mitigation projects that come forward under the scheme during the RIIO-T1 price control is £500 million (2009/10 prices) in total.

On 8 August 2018, we consulted on our proposed efficient costs for National Grid’s Dorset Area of Outstanding Natural Beauty (AONB) mitigation project. A non-confidential summary of National Grid’s submission was published on 10 August 2018.

Responses to the consultation can be found on the consultation webpage.

This letter explains our determination on National Grid’s proposal for reducing visual amenity impacts in the Dorset Area of Outstanding Natural Beauty (AONB) under RIIO-T1 provisions for the mitigation of pre-existing infrastructure.

Alongside this letter, we’re publishing a notice under Part C of Special Condition 6G of the Electricity Transmission Licence on modifications to National Grid’s electricity transmission licence and allowed revenue  to implement our decision. Details of the changes are set out in the notice.

Please respond on or before 30 November 2018 to Cissie.Liu@ofgem.gov.uk.