Well done - you managed to completely sidestep the fundamental requirement for base load power to keep the wheels turning! Windmills and solar cannot possibly provide that for the foreseeable future, if ever. The commercial decisions to close CFPSs you mentioned were based on little more than opportunism to force up the cost of power and make companies like AGL huge profits. Not only did AGL decide to not upgrade the Liddell power station, it actually refused to even sell it to someone else to keep it operating. They deliberately wanted to take some supply out of the system so they could foist big price increases on us all. It's rorts like this that confirm to economically rational people that much of the climate change industry is a money pit for opportunists.