There is another trick that works for people in colder climates, and that is this:

You can hang your wash out to dry in the winter when the temperature is below freezing, and it will dry! I learned this from my mother-in-law when they lived in South Dakota.

There is a technical explanation (I’m an engineer, remember?), which is that the water freezes (no big surprise when it’s -10, right?) and that it then “sublimes” or “effanesces”, which is the process of a material going directly from the solid state to the vapour state without melting (to a liquid) in between. The colder it is, the lower the amount of water vapour in the air is, and the greater the driving force for sublimation to take place.

So, hang your wash out to “dry” when it’s freezing, and save even more energy!