Note that's a winter peak you're looking at. The highest summer peak appears to have been just above 13GW. http://www.wattclarity.com.au/2016/02/highest-elect

Note that's a winter peak you're looking at. The highest summer peak appears to have been just above 13GW. http://www.wattclarity.com.au/2016/02/highest-electricity-demand-in-nsw-so-far-this-summer-seen-today/ http://www.wattclarity.com.au/2016/02/highest-electricity-de... However your point still stands I believe.