Here is a query from a friend of mine studying for a PhD in the smart grid area. Does anyone have any references or information on this topic? Others who might know more? As a preface, I don't really understand this stuff, so please feel free to reply with technical or dumbed down information. I will pass along verbatim. However, as I read the quote, the question is about EV CHARGERS (emphasis mine) and NOT EVSEs. I'm assuming that the person knows the difference between the two and is asking specifically about the CHARGER's ability to withstand frequency deviations. Thanks in advance.