Aurora Energy customers in Mosgiel and surrounding areas had no power after a tree snapped power lines in Morris Rd.
A Fire and Emergency New Zealand spokesman said crews assisted with traffic control about 9.30am.
Residents took to social media to complain about the fire risk trees in that area posed.
"Why were these not removed after the fire they started [in 2015]," one man said.
In 2016, an investigation found a gum tree was "most likely" the cause of the 2015 blaze on Saddle Hill.
However, a lack of evidence meant no party was asked to compensate for the cost of battling the blaze.
Yesterday, Aurora Energy special delivery general manager Richard Starkey said the tree fell during high winds and caused a power cut to 579 customers.
The company had a regular vegetation inspection programme across its entire network to make sure trees were clear of power lines, Mr Starkey said.
The trees along Morris Rd were inspected in late 2019, with those identified as growing too close to power lines maintained in early 2020.
They were next scheduled to be inspected between October and December this year, with any required maintenance completed following that.
