johnlocke said:
If you power your home from 5 PM to 7 AM with your EV, how do you get to work and back home during the day? Using your employer's power to charge your EV every day? Seems tantamount to theft if you do it every day. Kind of like taking a couple of dozen pens home from work every day.
Consider a completely solar economy. No wind, no hydro, no nuclear.
Two choices, one expensive and one much cheaper.
Many people work during the day. If they charge at home at night, they will need to have or pay for stationary storage to charge, as you suggest. This is more expensive.
If they charge during the day, either at work if they are working or at home, if not, then less storage is needed. This is cheaper, in total.
Economics is different if there is enough wind, or hydro, or nuclear.
Cost of power in a completely solar economy is lowest during the day while the sun is shining, and higher when storage is needed. Likely will be more than one tiers of storage, so if the rate matches the cost, then a sunny day with all storage filled would be nearly free power, a cloudy day would be higher as would night time rates, and a cold night down to the last tier of storage would be the most expensive rate.
Does your employer bill you for charging at work, or is it an expected benefit of working? Don't know. Maybe it would depend on the day, if nearly free they don't bother.