Loose wire blamed for power outage

A loose connection is to blame for taking down Whitehorse’s largest hydro generator Friday.

A loose connection is to blame for taking down Whitehorse’s largest hydro generator Friday.

Unit #4 at Whitehorse’s dam went down around 2 a.m. knocking out power to almost the entire territory with the exception of Mayo.

Most people had their lights back on by around 6 a.m. after Yukon Energy switched part of its supply over to diesel and LNG.

Spokesperson Janet Patterson said technicians examined the downed hydro generator and uncovered a loose connection in the unit’s governor.

In simple terms, the governor regulates how much power comes out of the unit, Patterson said.

By about 2 p.m. the system was fixed and the hydro unit was back up and running.

In the interim, the territory used a total of 41,000 litres worth of diesel and liquified natural gas. The utility used one of Whitehorse’s two LNG-fired generators.

“We didn’t have to bring on the other one, but we would have,” Patterson said.

“If we had gotten in there and it looked like this was going to be a much longer outage, then definitely we would have been using both of our LNG units but we didn’t need to.”

Less diesel and LNG might have been required if the Aishihik power plant had been up and running. But the plant was not available to help power the territory because it was having its elevator repaired.

Whitehorse’s unit #4 is the biggest in the city. When the 20 megawatt unit came online in 1985 it doubled the dam’s capacity.

Contact Ashley Joannou at

ashleyj@yukon-news.com

Just Posted

UPDATED: Porter Creek highway shooting now attempted murder investigation

Police believe incident was “targeted and related to the illicit drug trade and organized crime”

Inuvik mayor pens letter of concern about Dempster conditions

Conditions near Eagle Plains have been “terrible” the past two summers, she says

Yukon skiers embrace experience at Winter Youth Olympic Games

Derek Deuling and Sasha Masson skied for Team Canada at the 2020 Lausanne Winter Youth Olympic Games

‘It was terribly traumatic to lose a patient,’ nurse says during Blackjack inquest

The inquest is now happening at the Kwanlin Dün Cultural Centre

Whitehorse council and staff consider low-income transit fares

The discussion leaves anti-poverty coalition members feeling optimistic

Today’s mailbox: Biomass, fire

Letters to the editor published Jan. 24

EDITORIAL: The health department needs a time-out

The information and privacy commissioner deserves to be treated better

Yukon Rivermen face tough tests on the road

The team is in the middle of its busiest stretch of the season — 10 league games in three weeks

Yukon skiers battle both rain and heavy snowfall at 2020 Haywood Western Canada Cup

“They also realize that you have to be ready for anything — extreme cold or extreme warm.”

City news, briefly

Some of the discussions from Whitehorse city council on Jan 20

Driving with Jens: Both motorists and pedestrians have responsibilities when sharing the road

Roadways are a shared-use public resource. They are meant to be shared… Continue reading

Today’s mailbox: Biomass

Letters to the editor published Jan. 17

Most Read