Household appliance energy efficiency programs cut power bills and emissions — but they are out of date

Some energy efficiency standards for household appliances in Australia are outdated and no longer effective. (ABC News: Emma Machan)

You may not have realised it, but one of Australia's most successful climate change schemes has been the little "energy rating" stickers on fridges, heaters and other appliances.

And since they were introduced, they have saved you a heap of money, too.