I searched and came up with a few extension cord topics, but they read specific to Roadster. Now that there are a few Model S on the road, I am looking for some voice of experience and practical advise. When I travel to family (parents/in-laws) I will travel min 300 round trip. Very likely more when considering local, in-town transit. This trip will occur on average at least 1x / month with the car. Sometimes as a "day" trip. At one house we have a 6-50 circuit at the "head of" the garage. The garage is tight (both short and narrow) and I will emulate the ungrateful son-in-law if I routinely displace their family car to charge mine overnight in the sole available bay. At the other house, I did some inspection of the current wiring system and calculation of existing load. Based on my estimate, the main service panel would need an upgrade to 200amp service to support a dedicated branch circuit for the a 14-50 install in the garage. In the utility room, immediately off the garage in a 14-30 receptacle with 10 awg wiring. As a result, I am looking into the feasibility of fabricating a ~25 foot extension cord. I am thinking of purchasing 6AWG or likely 4AWG 4 conductor (600 Volt SOOW) cable. * On one end wire a 14-50 female receptacle. On the other end of the 24' cable, wire a twist-lock (Hubbell) type male connector. * Then create two interchangeable terminating ends that would be a short ~12-18" run. cord #1: 1st end matching twist-lock female connector; 2nd end 6-50 plug cord #2: 1st end matching twist-lock female connector; 2nd end 14-30 plug Based on the current announced plans, the supercharger network is not apart of my charging solution (at least not for the foreseeable future). Additionally, I am sure I will be able to find a J1772 charge station in the town, however I am not yet sold on the convenience of dropping off my car at some public charge station for an extended period of time (over-night). My forum search found some roadsters guys in Europe have done something like this. However I am seeking some knowledge of doing this in the US with a Model S. It would be disappointing to go through all this effort only to find out that the Model S throws an error code that it doesn't like the extension cord and doesn't want to charge. So I am seeking input, guidance and other thoughts on how this project would prove most fruitful. I have inquired through my delivery contact and have been referred internally. No word back from Tesla, yet. Thanks in advance for your input.