
Increased air conditioning use likely to blame for hydro outage in Ottawa's west end, utility says
Residents turning up the air conditioners on the hottest June 1 in Ottawa history likely caused hydro systems to overload, knocking out power to customers in the west end, Hydro Ottawa says.
Thousands of residents and businesses spent several hours in the dark and without air conditioning as the temperature hit 35 C Thursday evening.
Hydro Ottawa reported 8,500 customers in Kanata South, Kanata North, Stittsville and West Carleton-March lost power just before 6 p.m. Thursday.
Hydro was fully restored to all customers overnight.
The utility says the outage was due to some stations in the area becoming overloaded.
"We can speculate at the moment due to increased AC use yesterday," Hydro Ottawa said on Twitter Friday morning.
Hydro Ottawa said Thursday night that the outage was "likely due to the heat and AC being on."
In a statement to CTV News Ottawa on Friday, Hydro Ottawa says strain on the system can cause power outages.
"While Hydro Ottawa’s distribution system is built with sufficient capacity to accommodate summer peak loads, sometimes strain on the system can happen as a result of a sudden increased demand, resulting in outages," the utility said. "While this weather makes our system work harder, we are not experiencing any problems related to the peak demand."
The temperature hit 35.1 C in Ottawa on Thursday, the warmest temperature recorded in Ottawa on June 1.
A heat warning remains in effect for the city of Ottawa, with relief from the warm temperatures not expected until the weekend.
Hydro Ottawa offers the following tips to reduce demand on the system:
- Setting air conditioners to 26 C or higher, or use fans as an alternative
- Turning off unnecessary lights and appliances
- Closing curtains and blinds to keep out the sun and retain cooler air inside
- Delaying the use of dishwashers, washers, dryers and pool pumps until after 8:00 p.m.
With files from CTV News Ottawa's Natalie van Rooy
CTVNews.ca Top Stories

Health Canada recalls multiple Rainbow Road Board books due to choking hazard
Health Canada has issued a recall notice affecting multiple Rainbow Road Board books due to a potential choking hazard.
U.S., India talking about Canada murder, no 'special exemption': Biden adviser
The U.S. is in touch with Indians at high levels after Ottawa said Indian government agents had links to the murder of a Sikh separatist leader in Canada, and Washington is giving India no 'special exemption' in the matter, U.S. national security adviser Jake Sullivan said on Thursday.
Ukrainian President Volodymyr Zelenskyy set to arrive in Ottawa for first visit since war
Ukrainian President Volodymyr Zelenskyy is set to arrive in the national capital for his first official visit to Canada since Russia launched a full-scale invasion in February 2022.
B.C. First Nation research finds 158 child deaths at four facilities
An investigation into unmarked graves and missing children by British Columbia's Sto:lo Nation has revealed at least 158 deaths, most of them at an Indigenous hospital.
Is a 'no-tipping' policy ready to be adopted by Canadian restaurants?
As Canadians report their frustrations with 'out-of-control' tipping culture, some wonder whether it is time to remove the option to tip at restaurants and is it even possible amid rising food costs?
Canadian-founded Rumble slams 'deeply inappropriate' inquiry from U.K. MPs on Russell Brand content
A Canadian-founded video platform which has found success among right-wing commentators says it will not be removing the ability for Russell Brand to monetize videos on their platform after receiving an inquiry on the subject from the U.K. government amid a wave of sexual assault allegations against the comic.
Law firm awarded $4.5 million contract for David Johnston foreign interference probe
A Toronto-based law firm was awarded a nearly $4.5 million contract to work on former special rapporteur David Johnston's ill-fated foreign interference probe.
Man admits to fatally poisoning Toronto toddler's breakfast cereal in 'obsessive' plot against married woman
A Toronto man has admitted to fatal poisoning of a toddler's breakfast cereal at a Scarborough residence in 2021 as part of an "obsessive" plot against a married woman.
'I don't know when we'll go': Travel plans upended amid fraying Canada-India ties
Members of the Indo-Canadian community are reeling after the Indian government suspended visa services for citizens of Canada, upending travel plans for those set on visiting the country but now caught in the crossfire of a diplomatic blowup.