Not completely, but you can make electricity almost free at certain times of day to encourage shifting usage.
Although there is a natural limit to this, since people have to be home to do laundry!
(Also electric driers are the real culprit, they use an obscene amount of electricity! I am not sure if Germany is big on electric dryers or not though, that is something which is very culture dependent)
Holy crap, doing the math a US style dryer would cost ~1.50 in electricity in Germany to dry one load of clothing.
Sources: https://www.globalpetrolprices.com/Germany/electricity_price... https://www.thespruce.com/how-much-does-it-cost-to-run-an-el...
So, like, you know, yeah. My dryer has a delay start function on it, if late night prices are 1/2 peak, then I'd save 75 cents a load. Let's say 3 days a week of laundry, $9 a month in savings.
Again, my dryer already does this, it isn't new tech, it is just nudging me to make use of the existing button that is already there!
US electricity prices are so low, eh, not really worth it for the state I live in.
Also, electricity prices are not the same everywhere. My parents for example pay only 20 ct/kwh (I have no idea how they got that contract, especially since they moved only last year. They have low overall usage though (2,000 kWh/a, with fixed cost being like 30% of the total bill)