An estimated 2000 people in Sydney’s south are without power, while the blackout risk has eased across the rest of the city as the temperature cools down.
An outage that started in Cronulla at 4pm is still impacting over 1800 customers as of 6.40pm, Ausgrid has said.
Meanwhile, in nearby Engadine, roughly 200 customers lost power at 6.20pm.
Crews are working to restore power to both areas, but have not confirmed if the heatwave was the cause of the outage.
READ MORE: What the weather on Christmas Day is forecast to be in your city
The risk of a blackout for the rest of Sydney has now eased, the Australian Energy Market Operator (AEMO) advised as of .
Earlier today, experts said there could be “insufficient generation available” as workers and school students get home between 3pm to 8pm on what has been a sweltering day with temperatures in the high-30s for many.
The output from the state’s solar panels will also decline during that time.
“AEMO forecasts there could be insufficient generation available to meet the demand in NSW,” Energy Minister Penny Sharpe said in a statement.
“As a result, steps are well underway to reduce demand and lessen the risk of load shedding leading to temporary blackouts in some areas.”
Organisations such as local councils and water companies were being asked to reduce their power use amid the heat.
Householders were also do their bit by closing blinds, doors and windows to keep out the heat and delaying the use of things like dishwashers and pool pumps.
Air conditioning should be set between 24 and 26 degrees to save power.
AEMO said earlier that it “continues to work with industry and the state government to manage expected low electricity reserves this afternoon”.
“This situation is a result of heatwave conditions combined with the unavailability of major power stations,” it said.
By lunchtime, Sydney Airport neared 37 degrees, the west was 36 degrees and the city a cooler 29 degrees.
Meanwhile storms heading for parts of NSW have now moved on – for now.
However, they may return later, forecasters say.
“Severe thunderstorms have now weakened or moved south of the Victorian border, however thunderstorm activity continues in western NSW and storms may become severe again this afternoon and evening,” the Bureau of Meteorology said.
Rain is forecast, with showers possible tonight and tomorrow moving to heavier falls on Friday and Saturday.
The NSW State Emergency Service is also warning residents to prepare for “potentially severe storms with heavy rain, damaging winds and large hail” for areas including Western NSW, Sydney, Mid North Coast, parts of the Hunter and Illawarra.
Meanwhile, power is being restored to thousands of residents in southern New South Wales after outages affected more than 6000 customers from 5.30am.
Households and businesses in the Riverina region, including Wagga Wagga, Culcairn, Henty, Uranquinty and Holbrook, were impacted.
READ MORE: Lurking weather system could become Australia’s first tropical cyclone
Power company Essential Energy said the outage was caused by a fault on the Transgrid transmission line between Wagga Wagga and Albury.
It said the outage was not related to the heat, despite warnings of possible outages earlier this week due to some generators being offline.
“The power supply was isolated to keep the community safe until crews could temporarily restore power through a back feeder line just after 9am,” a spokesperson for Essential Energy said.
“Impacted customers were sent an SMS.
“To receive information about power outages, we encourage customers to confirm that their contact details are up to date with their electricity retailers.”
There were several power outages in Sydney yesterday, but Ausgrid said they were not believed to be heat-related.
Energy expert Tony Wood from the Grattan Institute said there were several factors in play that left Australia’s most populous state facing blackout risks in November.
He said climate change meant Sydney was seeing weather conditions more typical of January or February in November, while the ageing energy grid required ever-more maintenance.
READ MORE: Cass woke up vomiting as soon as the heatwave rolled in
“We have not been getting on with has to be done,” he told Today.
“What has to be done to ensure that we do have a transition to an energy system, which has exactly all the features that we all want and need, and we’re not there yet.”
He said it was unlikely Australia would experience massive state-wide blackouts, but these troubles would continue until the energy transition was closer to complete.
READ MORE: Scorching heat, afternoon thunderstorms and showers: What the weather on Christmas Day is forecast to be in your city
NSW can expect some relief from the heat later this week, with temperatures forecast to drop slightly to 30 tomorrow and then to a top in the mid-20s for Friday and the weekend.
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