CONSTITUENCY BRIEFING · ENERGYMAP.APP

Hertsmere

MP: Sir Oliver Dowden (Conservative) England Data to July 2026

Hertsmere has 1.4 MW of clean power (all solar) approved and still not built: enough to supply a year's electricity to 500 homes. Britain's grid bottlenecks still add to bills here: about £92 a year per household, £3.9m across the constituency's 41,939 homes.

Ranks 385 of 650 for clean power approved and not built.

What is stuck, and why

Project and developerTechSizeWhy it is stuck
Hilfield Lane, Aldenham - Battery Energy StoragePenso Power (BW ESS) Battery
170 MW
Approved less than a year ago — nothing has happened sinceWho can move it: the developer and the network company
Wrotham Park - Solar PanelsEnviromena Solar 11,000 homes
30 MW
Waiting 1.0 years for a planning decisionWho can move it: Hertsmere Council

What else is in the briefing

No account needed for any of this: the full seat page with every figure, the method and sources, and this constituency's raw data. The account covers the packaged briefing only.