Comment Monthly fixed costs will rise (Score 1) 494
In the end, this will just mean that monthly fixed costs will rise, while transmission costs per kwh will fall.
The cost of the electricity grid is actually in practice almost independent of the amount of electricity transferred overall - instead it has to be sized based on peak usage. The gist of it: A house that is connected to the grid and runs out of battery for just a day requires the same grade of connection to the grid like a house without batteries does. Therefore they should also pay the same, including administrative costs etc.
Maintaining the grid in a city is actually not expensive at all. It simply makes no sense to put batteries into your own cellar instead of the utility buying batteries and using them as necessary. The only reason for this can be electricity prices that roll costs into the price per kwh which are in practice not based on overall usage. So the fix for the problem described in the study is to get rid of elements of electricity prices that distort the market. Then there won't be an incentive to go off-grid anymore.