Intermittency Of Renewables?… Not So Much

[kristopher]

34. No, not time of day pricing

It is the provision of ancillary services that is where the money is.

Since the time of day assumption you've taken isn't applicable, we can skip over that, but to address a couple of other questions:

The utility could and will buy storage. But the availability of a huge existing base of storage can't be ignored. The way the economics work is that the consumer pays for a car for transportation and makes the economic valuation on that basis alone.
But the batteries are expected to outlive the rest of the auto.
The use that the utility puts the battery to one where only a little is taken, there wouldn't be cases where deep discharges occur.
That means wear and tear isn't nearly what you might imagine.
When you stack that up against the value of ancillary services, the owner can come out (depending on assumptions) between $1500-$3500 per year to the good IIRC (I haven't read those research papers in several years).
Some survey work has been done where the numbers were presented and the extra layer of financial benefit that the EV owner can realize is generally very attractive.
The numbers have been run by several entities from utilities like PG&E and grid operator PJM to battery makers, electric car companies, NREL researchers and academic researchers.
You might try googling "Willet Kempton V2G" the whole thing is his idea and he offers most of his published papers on his University of Delaware website.

The Federal Energy Regulatory Commission (FERC) is the regulatory body responsible for the operational security of the nation's energy delivery systems. They are 110% behind widespread adoption of V2G.