Not too bad here in Victoria (southern state). They closed a huge coal fired power station south east of Melbourne a couple years back that’s put pressure on. No nuclear in AU, but we have hydro up north and we get hydro from an undersea link from Tasmania. A fair bit of gas fired power here too.
Solar farms are the latest craze. The worlds biggest battery backup for solar was installed by Eon Musk‘s mob in South Australia last year, which help the locals there. Lots of power outages there previously during summer.
The government privatised power industry here a couple decades ago, so it’s now supply and demand. Problem is during freak hot weather events prices hit over $1000 per kWhr (from generation companies) so suppliers start cutting power to homes to save money. Although they’re in denial as that’s not legal.