Now that the European Superchargers have CCS and Tesla connectors both, it would appear that Tesla could very easily build an adapter if they wanted to. They already have the software to do the CCS protocol.
That they do, and have had for a long time, according to jb. (I don't have time now to look for the specific quotation.)
What most of the people who trivialize the CCS adapter issue do not understand is that the HomePlug PHY protocols used to administer vehicle-CCS communication (in systems terms 'authorization') are particular to CharIN applying equally to CCS in both J1772 and Mennekes versions, These are easily managed for Tesla but...
Older lower power NA CCS stations had much less complex communications/authorization requirements, partly because there are fewer power monitoring and charge control requirements in that environment. Thus, even while older vehicles can plug into newer CCS stations they will not receive maximum charging power. Tesla, as a member of CharIN, is delivering EU M3 to allow CCS at ~equal power to Supercharger and are converting EU Superchargers to teh new standards while supplying after-market adapters to permit S and X to sue the new stations. So, Tesla can deliver CCS adapters in specific situations, in this case allowing S and X to use the new CCS-style EU Supercharger stations. That does NOT necessarily mean that those adapters will work with non-Tesla stations.
Finally I hope people do not confuse 'authorization' in CCS vehicle/charing station context with 'authorization' in payment terms.
The payment side is not globally mandated nor is it always even integrated directly with the charging station. In fact, many charging stations around the world use remote payment authorization based on unmanned payment authorization for fuelling stations and vending machines. CharIN has an optional method for that used mostly (only?) in the EU.
The administration of the charging process and authorization for a vehicle to charge is NOT optional, and is an intgral aprt to CCS, more stringently in high power than in lower power stations.
All this is overkill for this thread but important to understand that a high power CCS adapter in NA will not come soon. It is still possible that the higher power CHAdeMO and CCS adapters might come at about the same time. Might, but it is also possible that the presently available S and X CHAdeMO adapter, limited to 50 kW, might be as good as it will become. Both CHAdeMO and CCS are rapidly deploying higher power charging stations in some places, mostly not in NA. They are coming, though. Within the next few months we will learn how Tesla will deal with these developments because they must do that for the EU, China and Japan (different standards for each but similar issues).
Some expect multiple native charge ports, as in China-market S and X. Nobody actually knows for certain. We'll find out soon whether we actually will have external adapters or not. We do need to avoid over-simplifying this issue. It is not at all like that ancient world-wide plug adapters that many of us have in our travel kits.
