3 ms·

This will be the case in the next couple of years. Wall boxes are inherently smart (that is, controllable). So as a sink, the concept works somewhat already. Bu

This will be the case in the next couple of years. Wall boxes are inherently smart (that is, controllable). So as a sink, the concept works somewhat already. But most cars won't be empty all the time. Also as source the 50kWh will only be usable as an emergency backup for the owner of the vehicle and only if they have the infrastructure to consume directed current. No one will let their own battery drain for the greater good. For public use cases people won't offer to unload more than maybe half of the capacity, realistically maybe 25% on average.

manmal 5y ago
> No one will let their own battery drain for the greater good Agreed. That’s why you‘ll get adequately paid for the energy sucked out of the battery in the evening when everybody starts cooking and energy prices on the market spike. The big problem we have right now is that we want to get rid of coal and gas, but they are currently absolutely necessary for serving peaks occurring when wind power and solar lie flat. Vehicle2grid could be the solution - a giant distributed battery. I think if you charge 40kWh in the day with cheap solar, and sell it for 5x the price in the evening or morning, that would more than offset the battery degradation (which is way less of a problem than initially suspected, especially when charging and discharging slowly). A big battery could make you a couple of bucks every day.
- chuckledog 5y ago
  Yes and add to that the ability of many of these large-battery vehicles to self-drive. For example when the owner is working during the day, the vehicle could drive to a regional charging station. This could help with the distribution component e.g. in rural areas with no power lines for the last few miles — the vehicle simply drives the power from where it’s available to where it’s needed.

3 ms·

This will be the case in the next couple of years. Wall boxes are inherently smart (that is, controllable). So as a sink, the concept works somewhat already. Bu

by choeger 5y ago

manmal 5y ago
> No one will let their own battery drain for the greater good Agreed. That’s why you‘ll get adequately paid for the energy sucked out of the battery in the evening when everybody starts cooking and energy prices on the market spike. The big problem we have right now is that we want to get rid of coal and gas, but they are currently absolutely necessary for serving peaks occurring when wind power and solar lie flat. Vehicle2grid could be the solution - a giant distributed battery. I think if you charge 40kWh in the day with cheap solar, and sell it for 5x the price in the evening or morning, that would more than offset the battery degradation (which is way less of a problem than initially suspected, especially when charging and discharging slowly). A big battery could make you a couple of bucks every day.
- chuckledog 5y ago
  Yes and add to that the ability of many of these large-battery vehicles to self-drive. For example when the owner is working during the day, the vehicle could drive to a regional charging station. This could help with the distribution component e.g. in rural areas with no power lines for the last few miles — the vehicle simply drives the power from where it’s available to where it’s needed.