Australia can make its electricity three times cheaper by using 82% renewable energy in its grid by 2030, according to new CSIRO analysis. The research shows that with mostly solar, wind, and batteries, wholesale electricity costs could fall to $91 per megawatt-hour. This is far below today's cost of $129 per MWh. The CSIRO studied different technology mixes for 2030 and 2050, marking the first time all combos were modelled. Their findings support the Albanese government’s goal of 82% renewables by 2030, despite expert warnings it might be missed. The report also debunks claims by the Coalition that more renewables will spike electricity prices. Currently, electricity bills rose 37.5% in the last year, mainly because government rebates ended. Without rebates, prices went up just 5%, says the Australian Bureau of Statistics. The CSIRO’s GenCost report says running nearly 100% renewables by 2050 can happen with no rise in generation costs. It notes using fossil gas as backup is cheaper and more efficient than green hydrogen or full emission-free setups. Costs for batteries fell 15% in a year, while coal and gas prices rose due to turbine manufacturing. Solar costs rose slightly, and wind costs stabilized. The cheapest plan uses mature technologies like coal, gas, solar, and wind, with no big new emission cuts past 2030. Adding offshore wind, carbon capture, or nuclear increases costs. This report offers fresh hope that clean energy can be much cheaper than feared and reshape Australia’s energy future.