The Government’s commitment to Net Zero by 2050 and the transition to cleaner sources of energy means a large amount of new generation capacity is planned to connect to the network. The existing transmission network was not originally designed to accommodate such large volumes of generation capacity and it will require significant reinforcements in the form of new substations and transmission circuits. Before building new lines, we look first at whether we can deliver more power carrying capability from the existing network by uprating or upgrading parts of it.
Each year the Electricity System Operator (ESO) considers what network reinforcements might be required and makes recommendations about those in their Network Options Assessment (NOA) report. Through that process, a need has been identified for a 400 kV upgrade of the Brinsworth to Chesterfield double circuit and the Chesterfield to High Marnham double circuit as well as new High Marnham, Chesterfield 400 kV substations and an extension or new Brinsworth 400kV substation.
Delivering this work will ensure that more low-carbon energy can get to homes and businesses in the Midlands and further afield. Doing so means we are able to get the most out of the existing network and keeping electricity bills as low as possible for consumers, whilst carrying more power on the network.