There's going to be a beautiful synergy here between electric vehicles and solar. Because an EV battery is already easily enough to power most houses through 14-16 hours of darkness, so if it can be a sink for solar during the day it can then be a source during the night. The future will have a combo of residential battery storage and V2H/V2G which has an attractive property that it scales naturally with population (every new person that moves to a location brings their EV battery with them).
It may be true for some who WFH often or in some cases, but not enough EVs will be able to discharge overnight for a v2g battery revolution.
BYO house solar is optional when there is grid solar (and home solar exports).
1. You have access to a charger at work 2. You’re retired 3. You take public transportation or bike to work (fairly common scenario in Europe) 4. Work-from-home (got more common after covid, I know many people who do it at least once a week now, and that’s generally enough to charge what you need to drive for a week) 5. You charge only during the day on weekends (should be enough to cover the week for most people, even if you feed say 20% of it back to the grid through the week) 6. Rental fleet operators (booking data can inform charge/discharge policy) 7. Residential batteries, where you charge the EV at night with what you got during the day, every day, but set up a policy where you allow both the home battery and the EV battery to discharge if the electricity is expensive enough. I could see myself making decisions about WFH or biking to work based on electricity pricing.
Remember that even my little town car (Renault Zoe) has a 52kWh battery.... which would run my house for five days. So the energy stored in these systems can be considerable.
The people doing these things have thought a lot about it. Take a look at this video - it's a bit 'puff piece' but shows what one way of doing it looks like: