When it’s time for new appliances you should replace older ones with newer more energy efficient ones. A good rule of thumb about replacing appliances is that if the price to repair an old one is half the price of a new one than you should get a new one because many new appliances are much more energy efficient.
However experts say you may want to consider first repairing an older model even though it may be less energy efficient. The reason is that if you can squeeze out a few extra years on your old appliance it keeps the appliance out of landfills for that much longer.
Getting appliances that use less energy will also save you money on your utility bills too.