I use delay-start to do the exact opposite - only run things in the middle of the day when the solar panels are generating the most power. Though it's less idea

I use delay-start to do the exact opposite - only run things in the middle of the day when the solar panels are generating the most power. Though it's less ideal for the washing machine as you need somewhere to hang the clothes overnight so you can dry them the next day (unless it's peak summer where there's enough daylight/warmth to dry clothes even if you don't hang them out until 4pm or so).