alt Hacker NewsI was definitely using simplifying assumptions to get my point straight here.
Setting the actual parameters for such systems is an engineering job, I just wanted to illustrate that the goal isn't going to have the charging station off the grid during peak hours thanks to the batteries, and more about managing the burden you put on the grid.
Yeah that's why it probably needs to be more than 1 charge in the battery. Unless you do N back-to-back charges during peak time, the charger isn't utilized enough. And to do N back to back charges you need about N car batteries as buffer.