UK power supply warning issued amid third heatwave of the year

WorldEnvironment
9 Jul 2026 • 6:14 PM MYT
The Independent
The Independent

The world’s most free-thinking newspaper

UK power supply warning issued amid third heatwave of the year

  • Britain's National Energy System Operator (Neso) has issued an appeal for increased power generation as the country experiences its third heatwave of the year.
  • Neso forecast tight electricity margins for Thursday evening, attributing this to "extreme temperatures" across Europe.
  • Intense heat significantly boosts electricity usage for fans and air conditioning, while also reducing the efficiency of power generation.
  • This is the third electricity margin notice from Neso this year, a measure more typically deployed during cold winter spells.
  • The notice, in place from 6.30pm to 10.30pm on Thursday, signals a desire for a greater safety cushion in the electricity market, but does not indicate imminent blackouts.

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