Australia launches A$2.3 billion plan to boost home batteries
The programme cuts the upfront cost of installing a household battery by about 30 per cent, provided that the system is connected to solar panels. The discount rate will be reviewed at least annually and gradually decrease until 2030.
The government hopes that offsetting some of the relatively high upfront cost of batteries will allow it to tap a world-leading uptake of solar by its citizens – about a third of households had panels in 2024, but only one in 40 of those had storage. It would also help alleviate dramatic price swings that make Australia's electricity market one of the most volatile, with wholesale power rates regularly dropping below zero when solar generation peaks around noon, before spiking after sunset.
'Growth in battery adoption will help Australia smooth its increasingly volatile power market, and allow greater integration of renewables,' said Leonard Quong, head of Australian research at BloombergNEF. 'Small-scale battery deployments have failed to keep pace with rooftop solar installations, weighed down by stubbornly high up-front costs and a lack of policy support.'
The incentives are likely to drive a boom in sales in the near-term by customers wanting to take full advantage before the incentives wind down, according to Quong. That will be welcome news for producers such as Tesla, whose local head last month said that Australia was the first, and so far only, country with more Powerwall household batteries than Tesla electric vehicles.
It could well be profitable for households, which in a worst-case scenario are forced to curtail solar output, with several electricity retailers offering customers free power around noon, or even paying them to use it. Wholesale prices were negative 20 per cent of the time across the National Electricity Market, which covers about four-fifths of Australia's power use, in the second half of 2024, according to BloombergNEF.
While the incentive will accelerate battery ownership among households, it won't help increase the resilience of energy-intensive industries trying to manage the risks of the renewable transition, said Anita Stadler, head of Renewable Energy Investments at consultant ERM Energetics.
Some of those risks include increasing breakdowns linked to an ageing fleet of coal-fired power plants that still supply most of Australia's power. To help meet some of the shortfall, the government has set an ambitious target for 82 per cent of power generation to come from renewables by 2030, from about 40 per cent last year.
'We already generate an excess of clean, reliable, renewable energy from Australia's abundant sun and wind,' Greg Bourne, an energy expert at the Climate Council, said in a June report that showed the price of batteries has declined 86 per cent since 2013. 'Batteries will help soak it all up and put it to good use during periods of high demand.' BLOOMBERG
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