The Duchess of Cambridge will officially open a new Art Room at a school in Ealing.
Her Royal Highness is a patron of the ICAP Art Room charity and will meet staff and pupils at the Northolt High School later.
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Mayor of London Sadiq Khan is backing the scheme.
A spokesperson said the lightning strikes had left the "aircraft fuelling system unavailable."
Nearly 1,000 properties have been left without power, and road users have been warned of potentially hazardous conditions.