I heard that ACs can be costly to run and are a drain on the electricity grid, why should I get one?

I heard that ACs can be costly to run and are a drain on the electricity grid, why should I get one?

It depends on the type of air conditioner. Energy-efficient reverse cycle air conditioners will in fact lower heating & cooling bills by up to 46%. Thousands of Aussies are saving hundreds per year (and thousands over the life of their systems) by installing energy-efficient air conditioners.

Moreover, air conditioners with Demand Response Mode Technology (DRMT) allow your electricity distributor to switch your aircon to economy mode during periods of high grid demand — for instance, extremely hot days and evenings. In addition, some energy retailers and communities financially reward participants of the program, since they reduce peak grid demands and the need for more infrastructure.