The Cheaper Home Batteries scheme is on track to notch up half a million installations in August, according to the latest tally, as the hugely successful federal government rebate continues to defy all expectations, even after being wound back in May.

In an update on the rebate’s progress, federal energy minister Chris Bowen said 487,000 discounted home battery systems had been installed as of Tuesday, adding a total of 13 gigawatt-hours (GWh) of energy storage behind the meter, soaking up excess rooftop solar power.

Speaking at a gala dinner as part of the Australian Clean Energy Summit in Sydney on Tuesday, Bowen said it was facts and figures like these that were the best antidote to the fresh round of renewable energy and climate disinformation being whipped up by Pauline Hanson’s One Nation party.

“So we are … finally flattening the the duck curve, of solar, which brings down pressure on prices for everyone,” Bowen told the gathering. “Now people aren’t going to buy that straight away. That’s a constant, ever receding finish-line to achieve, to get the job done.

“But my point is… Australians … they’re on the journey. They’re making a better energy source more reliable, cheaper, and they are well and truly on the journey.