There has been steady progress in getting power restored to homes in Newfoundland, with now fewer than 1,000 customers without power. 

Word came at a news conference at Newfoundland Power's headquarters in St. John's on Monday afternoon. 

The homes without power are located mostly in the Trinity North area and in the St. John's area, and the problems there are isolated, said Newfoundland Power officials. 

They added that rolling outages on Monday night were still considered likely, depending on how much electricity individual customers can conserve. 

The power outage, which gripped much of Newfoundland moved into its fifth day on Monday, with schools and university classes cancelled, businesses urged to turn off their lights and tough questions facing Premier Kathy Dunderdale.

Some 30,000 households and other Newfoundland Power customers were without power early Monday morning. Newfoundland Power, the private company that distributes energy it buys from Newfoundland and Labrador Hydro, said 18,000 of those customers are in the St. John's area, with the rest on the Avalon Peninsula. 

An incident Sunday night at the already-hobbled Holyrood generating station west of St. John's had knocked out power for as many as 100,000 households and businesses.

Hydro said the incident — which involved a massive blow of steam in the plant's switchyard — did not damage any generating equipment, but would take hours for service to be brought back to where it had been.

Even then, the Holyrood plant had been operating at less than 40 per cent capacity, in just one of numerous problems that Hydro, a division of Crown-owned Nalcor Energy, has been dealing with. Nalcor said its aging infrastructure has been struggling to keep up with a growing consumer demand.

Meanwhile, Newfoundland Power resumed a pattern of rolling blackouts, in order to distribute electricity from its significantly reduced supply. These scheduled blackouts typically last an hour. (Newfoundland Power has been urging consumers with longer distruptions to contact the company in case it is a local issue.)

Nalcor Energy CEO Ed Martin said the disruption happened on Sunday night as workers were trying to bring the last of three generators online. That work caused a fault in the switchyard in which the whole plant shut down with a loud bang and a massive release of steam. 

The noise was so loud that some people in nearby communities thought there had been an explosion. 

Martin said getting all three machines back in operation will take time. 

"We had crews and experts out there last night going through data and issues in the switchyard, and until we understand exactly what's happened, we won't give a time frame on [restoration]," Martin said. 

Schools closed, some surgery cancelled

The government has echoed calls for conservation, and has restricted operations at its offices. Schools have closed and hospitals have cancelled elective surgery. 

Newfoundland Power crews

Newfoundland Power has been struggling to reconnect its customers after losing much of its supply from Newfoundland and Labrador Hydro. (CBC )

Still, Dunderdale said Monday that most people are going about their day-to-day lives. 

"We've got 30,000 people who are inconvenienced, who are uncomfortable, who a number of them might have issues with their place or with daycare because our schools are going to be closed for two days," Dunderdale told CBC News.

"[But] the province is not shut down. None of our municipalities have invoked their emergency plan ... For a large segment of the population, life is going on as per normal."

The problems of the last week have highlighted Newfoundland and Labrador's equipment, which has long been dogged by maintenance problems. 

In an interview, Martin agreed much of Hydro's infrastructure is old and prone to breaking down. 

Nalcor, in fact, has been planning for years to decommission the fuel-burning plant at Holyrood, particularly as the Muskrat Falls hydroelectric project in Labrador comes onstream within the next four years. 

NDP, Liberals insist there's a crisis 

NDP Leader Lorraine Michael said a public inquiry should be called through the Public Utilities Board to determine what went wrong in a cascade of problems that saw rolling blackouts start last Thursday, even before a blizzard struck the province and two days before a fire at the Sunnyside substation knocked out power across almost all of the island.

Michael strongly disagreed with Dunderdale, who insisted on Sunday afternoon — before the latest incident at the Holyrood station — that the power outages did not constitute a crisis, but rather a serious challenge.

Power blackout

Only lights from cars were visible on streets in many parts of St. John's early Monday. (Anthony Germain/CBC)

"The people of the province believe there is a crisis," Michael said.

"I wish the premier would start using the language of the experience of the people of the province.  We have a crisis when we cannot meet peak moments during the year."

Opposition Leader Dwight Ball said Dunderdale's conclusion is wrong.

"This is a crisis, there's no doubt about that," Ball told CBC News.

"Any time that you have to take this kind of generation out of service in January, I would consider that a crisis."

Energy demand passed supply 

Peak demand in Newfoundland last week hit 1720 megawatts, well above historic averages as well as what Hydro — which generates the lion's share of the island's energy — could cope with.

With rolling blackouts still in the cards, officials have made unusual moves. All public schools are closed for Monday and Tuesday, as are Memorial University and most campuses of the College of the North Atlantic. Education institutions in Labrador are not affected by the provincial government's decision.

As well, the Newfoundland and Labrador government will send employees home on Monday at 5 p.m., to ensure the energy demand at government buildings is as low as possible.