OpenChargeMap is intended to be driven by users updating information, with occasional "official" updates. If you know of other EVSEs in your area, add them!I don't think the data for this site is up-to-date or accurate. There are quite a number of known charging stations in my area that are not listed. This source is more accurate and up-to-date: Alternative Fuels Data Center: Electric Vehicle Charging Station Locations Whether these data can be layered on a Google map is a whole other question.