UK Power Prices Turn Negative for 9 Hours as Renewables Push Rates to Minus £25/MWh
Updated
Updated · Bloomberg · Jun 12
UK Power Prices Turn Negative for 9 Hours as Renewables Push Rates to Minus £25/MWh
3 articles · Updated · Bloomberg · Jun 12
Summary
Saturday delivery prices in the UK fell below zero for nine hours, marking the first negative power pricing since late April.
Epex Spot data showed rates dropping as low as minus £25 per megawatt-hour as wind and solar generation were set to overwhelm the grid.
An Atlantic storm system is forecast to bring blustery weekend weather, lifting wind output not only in the UK but also across Germany, Poland and the Benelux region.
The move highlights how surging renewable generation can briefly flip electricity markets negative when supply outpaces demand.
As power prices turn negative, why do UK households still face some of Europe's highest energy bills?
Is spending billions to discard clean wind energy the true cost of the UK's green transition?
Can AI and giant batteries turn the UK's energy surplus from a costly problem into a national asset?
The UK's 2026 Negative Power Price Event: Grid Challenges, Renewable Oversupply, and the Path Forward
Overview
In late May 2026, the UK faced a rare event of negative power prices, caused by an oversupply of electricity that the existing grid could not absorb or store. As a result, electricity generators sometimes paid to offload their power to maintain grid stability. To manage this, strategies like offering free or discounted energy were considered, with industry leaders suggesting such measures could encourage more consumer investment in electrification. This situation highlights the ongoing challenge of efficiently storing excess electricity, which is crucial as renewable energy generation grows and the grid adapts to new demands.