Every Night at Midnight, Britain's Green Levy Turns Into a Pumpkin

The CfD levy resets once a day. On nearly half of nights the step at 00:00 now outweighs the change in the price of power, and almost nine nights in ten it points towards the dirtier day.

At midnight on Friday 10 April 2026, Britain's electricity got cheaper. The day-ahead auction had cleared the last hour of Friday at £37.12/MWh and the first hour of Saturday at £16.62, because a storm was forecast. To any flexible load watching the price, that was the moment to switch on.

It wasn't. At the same stroke of midnight,