British electricity networks are delivering less power for every km of wires

GWh of final electricity consumption per network kilometre at transmission and distribution (Index, 100 = 2015)

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Source: Distribution network length from RIIO-2 Electricity Distribution: annual report 2024/25 - supplementary datafile. Transmission network length from NESO - Electricity Ten Year Statements - Appendix B System Technical Data. Final electricity consumption from Dukes table 5.1Get the dataCreated with Datawrapper