A third-party connection to the South Australian power grid is being blamed for causing lights to flicker and dim across the state for hours this morning.
- There are reports of lights flickering or dimming across Adelaide
- ElectraNet has confirmed a third party connecting to the power grid was the source of the problem
- The third party has since been disconnected from the grid
Energy distributor ElectraNet said the unnamed “third-party” connected to the grid in South Australia’s north about 1:30am causing a “voltage issue”.
There have been widespread reports of house and street lights flickering across the state as a result.
South Australian Energy Minister Tom Koutsantonis said the issue was not related to AEMO’s gradual end to its intervention to wholesale price caps, which started from 4am and would go for 24 hours.
“I don’t think it was anything malicious or dangerous. I just think it’s probably testing, probably either a new generator that’s attempting to establish its connection to the grid after commission,” he said.
“There was testing and as demand started to increase into the day, they pulled the testing and the flickering stopped.
“I’ll find out who it was, it’s either a gas fired peaking generator or a wind farm.”
ElectraNet said it worked with the Australian Energy Market Operator [AEMO] to identify the cause and the third party was disconnected from the network.
It said power supplies returned to normal about 5.30am.
Premier Peter Malinauskas said ElectraNet controls the transmission lines from power stations to localized networks.
“The transmission lines issue sits with ElectraNet and apparently there’s a frequency issue there with one of their feeders,” he said.
“I understand there is an investigation underway from AEMO with ElectraNet.”
AEMO last week suspended the market and directed generators to pump power into the network to keep lights on.
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