Western Power said more than 1000 people throughout WA were still without power after the Sunday and Tuesday storms - and could remain so for days.
The utility said late yesterday that fixing the last pockets of blackouts would take several days and country residents were the worst affected, particularly those in Collie, Picton and Bridgetown.
Western Power spokeswoman Miriam Borthwick said repairing single faults took time.
"It's increasingly time-consuming after all the big jobs are repaired and switched back on," she said.
At the blackout's peak on Monday, 170,000 homes were without power and many were without phone lines. A record 260,000 calls for help had been recorded by Western Power since Sunday.
About 380 Perth residents were still without power last night.
Leederville mother-of-two Fran Lawrence lost power on Sunday and it was only switched on late yesterday. She said living without power with two small daughters aged three and seven had been a challenge.
"In the end we packed up and stayed with Mum and Dad," she said.
"Now we're charging up the mobile phone and enjoying having lights and heaters - it's a bit of a novelty."
Businesses are still counting the cost, especially in country areas.
Capel IGA, which lost power from Sunday to Tuesday, was forced to throw out at least $80,000 worth of frozen goods. Store manager Dominic Palumbo said some stock was moved into a refrigerated truck.