Whatever reasoning you attribute it to, as a customer (typically of a monopoly utility), your reality is: electricity prices don’t change with the clock or the calendar, so storage in batteries isn’t as profitable as it is for people with variable rates.
That has nothing to do with demand, it has to do with US obsession with privatization.
Even at 25 cents a Kw/hr, that’s $15 a fillup.
Whatever reasoning you attribute it to, as a customer (typically of a monopoly utility), your reality is: electricity prices don’t change with the clock or the calendar, so storage in batteries isn’t as profitable as it is for people with variable rates.