System operator National Grid can use a number of ways to control the supply of electricity if there is a spike in demand:
- It can lower the voltage, which means households may notice lights dimming or flickering
- Industrial customers can also be asked to come off the supply to protect households
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Speaking at Glastonbury Festival, the shadow chancellor said people who died in the Grenfell fire were "murdered by political decisions".
It's the largest Eid event in Europe, and today's figure smashed last year's record 88,000 people in attendance.
Cloudier to the south with light and patchy rain at times.