@hyc @tweedge A wifi washing machine can be turned on automatically when your home automation system spots a period of cheap electricity.
I use free electricity for doing the laundry when available, as that's always (so far) been during the daytime, but on non-free days I don't stay up to put the machine on at 2am when the price drops.
@mrFred489 @hyc @tweedge If I had a washing machine that could be told to start a cycle unattended I'd get it to start at 2am - we're on the Flux tariff so fixed prices at fixed times of day.
Today the weather forecast was crap - it was supposed to be cloud and rain, so I charged the battery up quite a lot last night. And then the sun came out and completely filled up the battery ... so I put the washing machine on to use the generated power rather than export it.