Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 26 November 2024 to Question 16211 on National Grid: Costs of the Western and Eastern Links, whether (a) he and (b) Ofgem is able to provide the estimate requested.

The analysis of an onshore reinforcement (i.e. overhead pylons) for Western Green Link was conducted 16 years ago and cost estimates for alternative options are not available.

As the option of an onshore reinforcement for Eastern Green Link 1&2 did not meet the timeline for delivery, it was not progressed to the cost benefit analysis stage. As such, an estimate was not made for that option. Analysis of further stages of Eastern Green Link will be available in the future.