[jmartinpetersen]

I wish my dishwasher could automaticly start whenver the price of electricity was low. I can manualle delay it by doing simple math in my head and forecasting prices, but it would be easier and more foolproof if I could script it with IFTTT.

[vel0city]

Your dishwasher probably uses ~1kWh of energy per cycle. Unless you're running your dishwasher a lot, or you're in an area where the difference per kWh is really massive, you're really not saving that much money.

[jmartinpetersen]

Saturday at peek hours 1kWH cost me 4.27 DKK. Six hours later it was at 1.67 DKK. That's $0.4 saved per kWh. We run our dishwasher every day.

[bluGill]

I doubt the cost in engineer hours would ever pay for your savings. Dishwashers don't use much water.

Normally I'd say someone should check the numbers, but this time I think you have better things to do...

[goodpoint]

In some countries with day/night tariff appliancies can trivially detect nighttime by voltage.

It's been used for decades and it's extremely cheap and reliable.

[jmartinpetersen]

Our tariffs for electricity vary by the hour. I don't know how to detect that by voltage?

[simplyaccont]

it's actually one of the reasons for wifi in miele dishwasher. it can fetch data about electricity pricing in order to run when it's lowest