Hi guys, Need some help. I've gotten two quotes on a NEMA 14-50 install that appear to conflict with each other. One electrician is saying that I can put a 40Amp 14-50 outlet without any upgrades to my panel, the other is saying I can only do 20A with the current load. I have an existing 120V outlet already installed and I don't drive much (~30km a day) but in BC here we can get 75% of the first $750 as a rebate, so I want to take advantage of that. I have two questions 1) Is it advisable to install a NEMA 14-50 on a 20A breaker, are there any downsides aside from slower charging speed? 2) Why is it that one electrician is telling me it won't go over the load? I've pasted the email from the electrician saying I can only go 20A below. Trying to make sense of this with very little electrical knowledge. Any advice would be brilliant. I did a load calculation and without the EV charger everything is good: 100.42A. Your panel is rated for 125A so there’s lots of capacity there. Adding a charger changes things though, and presents you with some options: - If I give you a 240V 20A circuit your total load goes up to 120.42A. This is the max we can get away with. It’s not the greatest charging setup but it’s not bad. Definitely better than a regular outlet that would provide only 15A at 120V. Some information online states it could take 22 hours to get a full charge with a 20A setup (I assume from zero). - another option is to install a charge controller that will turn the charging circuit on/off as needed depending on the load of your panel at any given moment. I think I mentioned this when we met, if not I can give you more information. This will give you a 40A circuit but not affect the loading of your panel. This setup is good for about 11 hours charging (again, I assume from zero, both stats came from the same chart). It’s more expensive for sure, the controller itself is about $1200. But it’s the only way we can give you more than a 20A circuit.