The energy network operator said it was caused by a combination of high winds and faults in nuclear plants.
Wind farms are causing controversy in rural areas and the government is choking off planning permission for new sites.
But for a 24-hour period yesterday, spinning blades produced more energy than splitting atoms.
Wind made up 14.2% of all generation and nuclear offered 13.2%.
It follows another milestone on Saturday, when wind generated a record amount of power - 6,372 MW, according to National Grid.
This formed nearly 20% of the the UK's electricity, albeit at a time at the weekend when demand is relatively low.
The situation is caused by windy conditions boosting the output from turbines at a time when eight out of the UK's 15 nuclear reactors are offline.
EDF Energy said current ageing reactors are down for a number of reasons:
- Sizewell B is in the middle of a planned "statutory outage" for maintenance and refuelling
- Hunterston B Reactor 4 is down for maintenance, expected back in early November
- At Dungeness B, one unit is being refuelled and the other is expected back online soon after being shut down after a fault on a boiler pump was discovered
- The four reactors at Heysham and Hartlepool were taken offline in August after a crack was found on a boiler spine.