1.7 Million People Live for a Week on 100% Renewable Energy

1.77 million people live in South Australia, speading across 984,321 square kilometres (or 380,048 square miles), according to Wikipedia. Today the Sydney Morning Herald announced that South Australia "sourced an average of just over 100 per cent of the electricity it needed from renewable power for 6 and a half days leading up to December 29 last year." They're calling it "a record for the state and perhaps for comparable energy grids around the world." The state's previous record was just over three days, says Geoff Eldridge, an energy analyst who runs the website NEMlog.com.au, which tracks the operations of the National Energy Market covering Australia's east-coast states and South Australia. His analysis shows that for the six days identified, the state produced on average 101 per cent of the energy it needed from wind, rooftop solar and solar farms, with just a fraction of the energy the state used being drawn from gas, in order to keep the grid stable. At times during the period, slightly less renewable energy was available and at other times renewable capacity was higher than needed, he says. Bruce Mountain, director of the Victoria Energy Policy Centre, said he believed that aside from some small island grids such as those in Hawaii and Tasmania, it was likely that South Australia's six-day run on renewables was a record for a grid supporting an advanced economy. During the unprecedented 156-hour renewable run, the share of wind in total energy supplied averaged 64.4 per cent, while rooftop solar averaged 29.5 per cent and utility-scale solar averaged 6.2 per cent, clean energy website RenewEconomy.com.au reported, using Mr Eldridge's data. (Thanks to Slashdot reader betsuin for sharing the article)

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