“The transition to a 100 per cent renewable energy system by 2050 is both technically possible and economically viable in the long term,” the report says. And by 100 per cent renewable, it means all energy use, including transport and heating.
The report canvasses two renewable energy scenarios, one based on a high level of renewable energy in the electricity grid, but with transport largely reliant on fossil fuels. The second is the Advanced Renewables scenario, which canvasses a totally renewable electricity system by 2030 and a fully renewable energy system by 2050.
Interestingly, the ‘advanced renewables” scenario includes a significant share of ocean energy and geothermal energy, which have yet to make their mark in Australia, along with solar thermal and storage and biomass, which will add to the “flexible” generation capacity that will fill the gaps between wind and solar.
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