Energy regulator Ofgem has agreed an additional £3.3 million from companies SSE and UK Power Networks after an investigation into how they dealt with last year's winter storms.
The money will go to organisations that played a key role in helping vulnerable customers who suffered power loss.
The firms have already paid out £4.7 million and committed to improvements.
Severe weather over Christmas 2013 saw power cuts affect nearly a million homes and Ofgem has today put the industry on notice that any repeat of last year's performance issues will trigger further action.
Scottish and Southern Energy's payout totals £2.3 million to the British Red Cross, Age UK, National Energy Action, Macmillan Cancer Support, and to a new community fund.
Distributor UK Power Network totals paid £1 million to the British Red Cross, the Royal Association for Deaf People, Carer's Trust and Citizens Advice.
More top news
Australian PM Malcolm Turnbull has ordered an inquiry into the treatment of children in detention following the broadcast of CCTV footage.
Government relaxes rules for retailer to test drone deliveries in British airspace.
The Hollywood A-lister cried as she gave a candid answer to a young fan during a Q&A at Italy's Giffoni Film Festival.