Quote:
Originally Posted by CW3SF
That’ll never work. Peak demand is in the morning when everyone is getting ready for work and evening when everyone gets home and makes dinner, does laundry etc. or when there’s a weather event. Those times vary slightly by geographical area and time zone. Do you want them trying to pull stored power from your EV when you are trying to charge it? Do you plug it in for their availability when it doesn’t need a charge? Doesn’t make sense to me.
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While not going to comment on the viability of pulling the energy from an EV as a way to deal with surge in power demand( I agree probably not viable), a few misconceptions.
1. When it comes to EV's, keep it plugged in when at home( if you have a home charger, etc) is what you want to do. The car will manage itself and does not do any damage to the battery. It allows preconditioning the car to draw from the house and not from the battery, etc.
2. Most of the time you will be charging the car between midnight to 6 am when at home, not at peak hours. You also don't charge to 100% and let it drain down to 10% lets say before plugging back in. For me, I keep my Model 3 at 65% SoC. My commute will have me getting home with 45-47% SoC. I plug it in, have the car scheduled to start charging at 11 PM( off peak for me) and takes about 1.5 hours to charge back to 65%.
Some of this talk of EV's straining the grid is a bit overblown in the sense that only people going to DC fast chargers will be charging during the day. Most of the time, the EV will be charging off peak in the middle of the night while you sleep.