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IEEFA report: Bundling rooftop solar, storage and an electric vehicle becoming cheaper in Australia

By 2024, cheaper for Australian households to invest in solar, storage and an EV in combination, than in solar alone

Australia States only mapA new IEEFA report suggests Australia is on the cusp of another solar revolution.

Australia has one of the world’s – if not the world’s highest – uptake of rooftop solar.

The country also has one of the world’s lowest developed country uptakes of electric vehicles, which can be charged from rooftop solar.

In 2018, just 0.2% of vehicles sold in Australia were electric cars. That’s roughly 1800, and compares to more than 4000 in New Zealand, which has about a quarter of the population Australia does.

Gerard Wynn from IEEFA says exemptions from the GST and motor taxes, as well as a government grant in the range of $6,500 dollars, could dramatically increase that uptake of electric vehicles.

The country has one of the world’s lowest developed country uptakes of electric vehicles

“With not such big incentives, perhaps an exemption from road tax and possibly a capital incentive to help buy the vehicle, you can capture that solar power that you’re harnessing on your roofs, store that in a stationary battery, let’s say in a garage, and then use that stored solar to charge up an electric vehicle,” says Wynn.

“By combining those three technologies, your solar panels, your battery and your EV, you’re driving now two sources of savings.

“Already your solar panels are helping to save on the cost of running your household appliances. Now the panels are also helping to reduce the cost of, in this case, driving an electric vehicle.

It could be that Australia is actually on the cusp of something of an opportunity.

“I think this will play out not only because of Australia’s solar panels and solar market, but also the falling cost of EVs.

“I think it’s really interesting, and it could be that Australia is actually on the cusp of something of an opportunity.”

Such incentives as Wynn suggests would take the current payback period for a solar battery and electric car package from his estimate of about 9 years currently, to less than 5 currently, on IEEFA’s modelling.

By the end of the decade, that payback period could be less than two years.

There could be another benefit if electric vehicle uptake went up based on rooftop solar. It’s an extra use for that route rooftop solar which is currently destabilizing the energy grid because of the production during the day time when demand is low.

If more people had electric cars and were charging them during the day time, that daytime demand would be much higher.

Read the report: Steering by the Southern Sun – Australians Are Missing a Trick on Solar-Powered Electric Vehicles

This story first appeared on ABC’s Radio National.

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IEEFA update: Why renewables are the solution for Australia

IEEFA Report: Advances in Solar Energy Accelerate Global Shift in Electricity Generation

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