It came with a lot of strings attached. For instance, in order to use Tesla patents a company cannot attack Tesla for any intellectual property matter. Also, Tesla still makes use of trade secrets and its design patents are not released.

Which is the reason why about no one took on the offer, it is a legal minefield for not that much value. NACS became a thing only after they truly released the standard.

The patents for the NACS connector were open sourced. We are utilizing that for our charger hub/connector.

The communication and payment protocol is still proprietary.