
Attempted copper theft from an Energex substation cut power to 13,000 customers. The incident is one of nearly 1,000 cable theft attempts in Queensland in 12 months, as high copper prices drive theft.
An attempt to steal copper from a south-east Queensland substation caused a fire and left about 13,000 customers without power overnight. State-owned Energex said the fire at its Browns Plains substation cut power to suburbs including Boronia Heights, Hillcrest and Regents Park from 2:45am. The outage affected homes and businesses in the area, a residential and commercial hub south of Brisbane.
Energex field delivery general manager Kev Lavender said someone broke into a cable pit outside the substation and tried to cut through an 11,000-volt cable. "We suspect that anyone who's been involved in cutting through a live 11,000-volt cable could have serious injuries, and it could've resulted in a fatality," he said. By 10:15am, power had been restored to nearly half the affected customers, leaving about 6,500 still without power.
The incident is the latest in a surge of copper theft attempts across Queensland. Energex recorded nearly 1,000 cable theft attempts in the past 12 months, Lavender said. The utility has been replacing copper cables with aluminum, and the cable cut overnight was aluminum, he said. Lavender noted an increase in thefts not only on the network but also in new housing estates and developments. The thieves risked their lives for material of relatively low value, he said.
High copper prices make scrap metal a profitable target. The Queensland government introduced legislation earlier this year to strengthen penalties for metal theft. The changes create new offences for possession of suspected stolen metal items and require scrap metal dealers to verify the source of copper, making it harder to resell stolen material. The legislation is still before parliament.
Copper prices are high, and scrap supply is tight. The theft wave is one result. It also creates operational costs for utilities. Energex's shift to aluminum is one example of substitution that could reduce copper demand from the power sector if theft persists. Security spending and insurance costs for infrastructure owners may rise.
Scrap copper accounts for about a third of global supply. Theft disrupts scrap flows, which can tighten the overall market. For traders tracking copper supply risks, the Queensland incident adds to a pattern seen globally.
Lavender described the behavior as "selfish" and said it has happened multiple times on high-voltage networks. He urged the public to report suspicious activity around Energex infrastructure to police.
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