With more analysis of why New South Wales was barely coping with electricity demand during one of the days of its recent, really remarkable, heatwave in the news, I feel the need to make one observation:
Get a grip, people: the risk of losing power for an hour or two a year in a modern city is not the end of civilisation.
Going back a few decades in Queensland, at least, before concern about how our electricity was generated was even on the radar, summertime blackouts in my part of Brisbane (all of 7 or 8 km from the inner city) were hardly that unusual. Storms at that time seemed much more likely to cause very widespread blackouts than they are now, and I seem to recall people considered it an inconvenience but not a crisis.
Now, you get a city with a "brownout" of an hour, again really due to the weather and the high demands it causes, and everyone acts as if it is a crisis.
Sure, it's good to work on fixing the problem that causes it: continual supply is ideal and (like improvements to Queensland's transmission infrastructure) are worth working towards.
But let's not go overboard with how bad the current situation is...