Business is slowly starting to pick up in the town after devastating bushfires, assisted by the return of mains electricity earlier this week.

Tuesday's announcement that the festival would return in April received a positive response in the town on Wednesday.

All profits from the four-day event will support the bushfire recovery, which authorities believe could take years.

Board member Jane Saxton said there was a huge amount of work to be undertaken until the event could go ahead.

Fire burnt out sheds and contents including signage and electrical equipment, and other infrastructure has been damaged.

Trees have also been burnt and will need to be cleared, and fences need replacing.

"We're starting from scratch," Ms Saxton said.

"It's a big undertaking, not to mention that it will all need to be cleaned up before we can even start.

"It's going to be a big job.

"But the festival started with nothing so we're just back to where we started."

Ms Saxton said cancelling the festival in its 25th year would be a huge blow for the area.

The motto will be "rebuild, regrow, recover".

"We think it's going to be a very positive thing for the community," she said.

"It's been a very big part of the community for a long time."

Access to the town is still limited to residents.

Colac Colac Caravan Park would normally be bustling with hundreds of holidaymakers.

It has been quiet since 605 people were evacuated as flames four or five metres high burnt towards the park.

While the fire burnt around the site - aided by a creek running through the property - the Mt Mittamatite Caravan Park less than five kilometres away was destroyed.

"It was like a cyclone ... I've never heard anything like it," owner Paul Dally said.

"The whole scenario was of devastation.

"There's no other word for it.

"When you saw this thing come, it was on a mass scale.

"I'm glad we evacuated.

"They got it right, they definitely got it right."

Mr Dally, who runs the business with wife Melissa, was unsure when tourists would be allowed back to the area.

Ms Dally said the business was usually "pumping", and would usually be full next weekend for Australia Day.

"We want people to be safe," she said.

"They want to support the community, they want to come, but is it too soon?"

Betsy Christie re-opened her coffee shop, Corryong Health Foods, on Monday after a two week closure.

She is still feeling the effect of the fires.

"I think it's going to be really hard," Ms Christie said.

"We've had the drought, the fires, and now the cost of living is going to go up.

"But we've had locals starting to come through town, we've been getting some good local support."

She welcomed news the festival, which is attended by about 7000 people a day, would return.

Butcher Mal McColl said power outages had had a big impact on his business and led to his stock being thrown out.

"It's been pretty harsh," he said.

"Getting the stuff back in has been the big problem, getting refrigerated transport.

"Hopefully in the next few weeks we'll be back on top of things again.

"We had the town generator that was enough to run everything, but it was probably lucky not everyone was in town.

"It's good they got the (mains) power back on Monday afternoon."

IN OTHER NEWS:

AusNet Services data shows 39 properties are still without power at Corryong, eight in the Nariel Valley, 14 at Colac Colac, 65 at Cudgewa, and dozens cut off in other areas.

Residents were hopeful rainfall forecast to start on Wednesday night and run for several days would eventuate.

"Hopefully a bit of rain will start to brighten things up a bit," Corryong greengrocer Stephen Jarvis said.

Ms Saxton said while sorting out the festival would be good for the town, it wasn't the most important thing.

"We don't want to be leaning on all the volunteers who help us every year, because most of them are flat out anyway," she said.

"Most of them have got their own damage to look after and their friends and neighbours are helping them. For us, it's really important that happens first."