Does a washer and drier under light load settings use alot of power, and want to know how much it uses?

Answer 1

one load on a 40c wash not on economy with a 1600 spin, with an 80 min dry costs me around 90pence

Answer 2

In order to know this you will need to know several things such your rate per KWH, and your paticular machine's energy rating on each setting. The machine information will be on a sticker(known as an "energy wise" sticker) somewher on the machine, or you can call the manufacturer.
Usually the duration of the wash cycle has more to do with the cost per load than whether it is a light load or not. If the machine is geared different on a light load it could, but probably not. Your dryer should be rated just like your washer, and you can get the information the same way as with the washer.
...jj
16 years in laundry biz

Answer 3

For a washer, shorter cycles will reduce the electricity usage of the washer. Also lower water temperatures and smaller load settings will reduce the amount of hot water needed and the power used by the hot water heater to heat it.

For a dryer, lower temperatures settings will use less power. And because the temperature in the dryer is regulated, smaller loads will reduce the amount of heat needed to dry the clothes causing it to use somewhat less power.

One hidden cost of washing and drying is the amount of heat that is spilled into your home while laundering. If you are in an air conditioned home you will pay extra to have this heat removed that you just payed to have made by your water heater and dryer. Of course, during the winter months in a heated home this can be a benefit

WK