Power restored to storm-hit Kent, Surrey and Sussex homes
Power has now been restored to most homes in Kent, Sussex and Surrey which were left without electricity in Friday's storms.
About 11,000 properties had supplies cut overnight when overhead lines were damaged or brought down by trees and debris.
UK Power Networks said all but a small number of isolated properties had electricity by Sunday night.
Severe flood warnings remain in place on the River Thames.
In a statement, UK Power Networks said its "engineers worked tirelessly around-the-clock" to restore power to homes.
It added: "All counties are back to normal although there may still be a small number of isolated properties still affected where we may have access issues."
Hundreds of homes along the River Thames remain flooded but conditions in the worst-hit areas are expected to improve this week.
Flooded signalling equipment at Patcham, near Preston Park, led to disruption for rail commuters travelling between Brighton and London on Monday.
In Kent, flooding continues to affect properties near the River Nailbourne and Stour.
Kent Police said soldiers were continuing to help prevent properties being flooded in the county.