High voltage required to use Aemo’s emergency backstop is a bit like stopping a car by driving into a tree, Vince Garrone says
Your smoke detector may be at risk if solar power is turned off during sunny days to protect the grid, experts say
“It’s a bit like having to stop a car by driving into a tree because you’ve not maintained the brakes,” he said.noted that South Australia resorted to using the “backstop” almost daily for a week in November 2022 when windy and sunny conditions combined with transmission lines going down, leaving the state unable to export surplus power.
However, he highlighted a disparity between the 260 volts or higher likely to be needed to trip inverters against the maximum voltage of 253V to 254.4V used for testing appliances. The devices include residual current circuit breakers and residual current circuit breaker , and products from fans to dishwashers, Garrone’s data showed.
An SA government spokesperson said that state’s Office of the Technical Regulator had not received any complaints about failed or damaged appliances as a result of the use of so-called enhanced voltage management to turn off rooftop solar. One smoke detector supplier said that if their device was used under conditions outside their given specifications, “we cannot guarantee that the product will still work properly in the future”.
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