Sure, a battery isn't available to everyone. But I is available for many.
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.
> A side effect of policies like this is effectively getting people to invest capital to time-shift elec usage.
this means you don't have a functioning government/political system.