Projects · Power & Grid

Brinsworth (South Yorkshire), Chesterfield, High Marnham (Nottinghamshire)·In developmentPower & Grid

Brinsworth to High Marnham Uprating

  • StageConsented; planning permission granted for all three substations (High Marnham June 2026, Long Lane and near Chesterfield July 2026)
  • Next milestoneStart of construction; no dates published
  • Last checked1 November 2026
Source: National Grid news release, 24 August 2026 →

What has changed on this project, and when

  • Next milestone: Start of construction; no dates published2 November 2026 · previously: Start of substation construction; no dates published
  • Stage: Consented; planning permission granted for all three substations (High Marnham June 2026, Long Lane and near Chesterfield July 2026)2 November 2026 · previously: Consented, planning permission granted for all three substations
  • Next milestone: Start of substation construction; no dates published6 October 2026 · previously: Council planning decisions
  • Stage: Consented, planning permission granted for all three substations6 October 2026 · previously: Planning applications submitted, awaiting decisions

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