After: 30c/kwh most of the day, 0c from 11-2
It's still worth it if you have a lot of load you can shift to the middle of the day (like a pool heater or battery), but for most 9-5 workers you just end up paying more at the times you're actually home.
Smart meters are free, most people already have one.
Even if you're not home I'm thinking there are a number of ways to make use of the free elec. Hot water geyser seems like the obvious first candidate.
I'd also think heating (in winter), cooling in summer. Even if you're not there in those times, the effects will be evident for many hours after.
For those who have programmable washer/dryers or dishwashers it's also good. Even ovens on occasion.
I get that not everyone is best placed to take advantage of this, but equally improvements don't have to be an "everyone or no one" option.
Here in Germany, it is absolutely massive and an increasing number of people run their balcony solar with batteries that just feed into a regular Schuko Plug. It only allows to feed in 800W at a time, but there are workarounds for that as well
One would have to do the math, cost of battery versus 24kw free daily. But clearly for lots of people the math will work.
A side effect of policies like this is effectively getting people to invest capital to time-shift elec usage. That's good policy. Reducing the peaks in consumption solves other problems.
this means you don't have a functioning government/political system.
The government is having to force them to reflect the abundance of cheap, clean energy at these times in at least one of their tariff offerings.
They can bend the rules slightly by adding other daily charges or limitations and upping the price at other times to reduce uptake and move us all slightly further from the global optimum but maximize their profits.