A Victorian-first trial of a fire-proof wrapping around wooden power poles to prevent damage by fire has begun at Powercor.

Victoria’s largest electricity distributor is trialling a new product designed to protect power poles during fires, strengthening the power network for regional communities in high bushfire-risk areas.

Powercor will wrap fire-retardant mesh around the base of the poles, protecting them from low-intensity grass fires.

In normal conditions the mesh allows the pole to breathe, but when exposed to heat it expands and hardens to shield the pole from flames and embers.

The trial will focus on protecting wooden power poles in areas most exposed to grass and scrub fires, helping limit damage to the network and reducing the length or likelihood of outages for when customers rely on power most.

It is the first time the technology has been used in Victoria and forms part of Powercor’s broader work to deliver a stronger, more resilient network as extreme weather events become more frequent.

Crews trialled installation of the mesh in a controlled environment at Powercor’s Ballarat depot in February, with the first field trials expected to begin within weeks.

Head of strategic projects Craig Savage said the trial was about further improving how Powercor prepared the network for fire conditions.

“This trial is about strengthening our network in known high-risk areas so we can limit damage during fires, reduce outages and restore power faster for the communities we serve,” Mr Savage said.

Almost 300 poles were impacted by grass and scrub fires across Victoria in January, including at Harcourt, Cobram, Skipton and Natimuk.

While Powercor crews responded quickly to rebuild the network, in some areas it was days before crews were able to safely access fire-damaged areas, meaning customers were off supply for longer periods.

If it receives approval from the Australian Energy Regulator, Powercor plans to roll out the technology more broadly as part of its 2026 to 2031 investment program.

“This solution costs significantly less than installing a new concrete pole and provides a stronger level of protection against passing fires than existing treatments for wooden poles,” Mr Savage said.

“While concrete poles continue to play an important role in heavily treed areas, this technology gives us another option to improve resilience across large parts of our network.”

Powercor has more than 250,000 wooden poles across its network and expects to propose a rollout of a combination of fire mesh and concrete poles in more than 1000 high-risk areas by 2031.

A decision on Powercor’s 2026 to 2031 plans will be made by the Australian Energy Regulator in April.

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