I'm a prospective Model S buyer and trying to plan out how I would charge it. With today's changes in their charging options, you only have the option to get the High Power Home Charging package for $2700 for twin charging and High Power Wall Connector. I don't think I have the need for a High power wall connector. Is the twin charger worth it?
On a slightly different note, I got a new garage built last year with standard outlets. Is there any benefit to paying an electrician to bring in 240V outlet?
Just trying to plan ahead should my driving habits change as well as resale value. I'm not sure what questions to ask my myself for these issues.
First, I'll repeat what has already been said here: you most definitely want a 240V/40A outlet in your garage. (NEMA 14-50)
Personally, I think the HPWC is overkill for home charging. What difference does it make if you charge your car in 3 hours or in 6 hours, if you're asleep?? A rare exception, where the HPWC might make sense, is if you have off-peak electric rates for a very short period at night (4 hours or less). But, the HPWC can only be installed if you have a spare 240V/100A space left in your electric panel. Most homes have a 200A total, so unless you have a gas stove, gas oven and gas clothes dryer, you probably don't have 100A to spare.
All that said, the Twin Charger option is a very useful feature to have in your car for another reason: so you can charge at the 80A level (62 miles/hour) while visiting a Tesla store or while your car is being serviced at a Tesla service center. I have been in these situations several times, and I'm very glad I had the Twin Chargers. It kept me from having to wait another 90 minutes to get my car topped off. (Twin Chargers are not necessary for using a Supercharger station.)
Tesla's brand new configuration page now has the Twin Charger option bundled with the HPWC. (I hope they reconsider this.) If you are quite certain that you
don't want the HPWC, but you
do want Twin Chargers, call the Tesla Ownership team and explain this to them. They do make exceptions.