My wife and I open our home up to guests using AirBnB. I would like to offer electric car charging to those that stay with us. I want to attract electric car owners. I want to install something better than what we have without paying too much money. I am thinking Nema 14-50 outlet but am open to other ideas. Some things I've thought about: the 2-3 thousand for a bill at point of use unit is too expensive for us. in garage has more value but gives us inconvenience outside access available to all with an honor system pay as you go for those that want to stop for just a short top up (could be used if we were not home) spend a little more money to run a line to an open ended shed- could even run a new meter for this if idea was popular. Owners- please offer advice on what to install, how to market or best let you know, how to make it easy for you. Should I think of other things. And if you have ideas or links to help my redneck electrician do this right... please share. And if you are travelling through eastern north carolina let me know and I will send you link for where we are.