I don't think anyone here moralises Aircon. It's something that's most used during periods of sun so it's really mostly powered by renewables. During the times of high ac usage there's always an energy surplus from all the solar panels around these days and the electricity distribution has trouble dealing with it all.

Your comment makes me think you don't live in a warm country.

Where I am from it is currently 24-25C at 3am. It will likely go up to 27C in August. We keep our AC on overnight in some evenings.