Seven people, including convicted fraudsters, drug traffickers and money launderers were arrested in the Met's dawn raids this morning.
Officers targeted properties in Islington, Bromley, Southwark, Uxbridge, Hertfordshire and Essex, after warrants were issued by the courts for the non-payment of confiscation orders totaling over £2.6m.
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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.