# Speed up electricity grid upgrade or else face higher bills, warns UK watchdog

- URL: https://talkfuse.com/story/speed-up-electricity-grid-upgrade-or-else-face-higher-bills-warns-uk-watchdog/
- Published: 2026-09-11T05:00:02+00:00
- Updated: 2026-09-11T06:07:48+00:00
- Original publisher: The Guardian (publisher lean: Left)
- Original article: https://www.theguardian.com/business/2026/sep/11/speed-up-electricity-grid-upgrade-or-else-face-higher-bills-warns-uk-watchdog
- Topics: Business, Government, Politics, UK, World

## Key points

- NAO warns slow grid upgrades could raise UK energy bills by 2030
- Only 16 of 80 needed grid projects are complete so far
- Constraint costs could hit £7.8bn yearly without faster delivery

## Summary

The National Audit Office (NAO) has warned that UK consumers face higher energy bills unless the government accelerates a £70bn programme to modernise Great Britain's electricity grid. The upgrades, which involve overhauling pylons, overhead lines and substations, are intended to allow more electricity from wind, solar and other renewable sources to reach homes, supporting Labour's target of decarbonising the grid by 2030. While ministers argue the plan will keep bills lower than they would otherwise be, the watchdog cautioned that delays could instead push costs up, with knock-on effects for economic growth.

Of the 80 projects deemed necessary to hit the 2030 target, only 16 have been completed and most remain at an early stage. So-called "constraint costs" — paid when windfarms are switched off and gas plants switched on because the grid cannot carry power to where it's needed — reached £1.9bn in 2025-26 and could rise to £7.8bn a year by 2030 without faster progress. Transmission owners will need to more than quadruple annual spending, from £2.5bn to over £11bn by 2027-28, and Ofgem estimates households could save around £30 a year if the schedule is met, though the NAO deemed this "very challenging" and called for greater transparency from Ofgem, the National Energy System Operator and government on project costs and progress.

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Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.