I wonder if apartments realize this when they allow charging in the garages? I’m sure when the apartment was built, the expectation for the plug in the garage was that it would be used for the garage door opener or an occasional power tool. That kind of usage is so low that it’s not worth trying to charge the tenant for the electricity. But if the renter is going to use $100/mo worth of electricity, the apartment would need to start billing the tenant. They may need to start having meters on each garage.
Trying to determine consumption from charge rates doesn’t give accurate answers for a variety of reasons. It’s better to just go with the fundamentals. A 2022 Leaf is rated at 30 kWh/100 mi, or (in my preferred units) 300 Wh/mi. That comes to $75/mo instead for 42 miles/day at $0.20/kWh.
The Leaf will do better than that if the OP does a greater mix of city driving than the EPA standard. Not sure if that’s the case, but due to their low-ish range, Leafs aren’t as great for people that do lots of highway driving.
Another good point - when hanging a cord, be sure it’s got strain relief, so the cable does not do a sharp 90° to hang down. Roll it over something that gives it bigger bend radius. I’m sure there’s something in the hardware store that does that.
300Wh/mi seems high. My Tesla does better than that except in subzero weather. Mind you, my comparison is 10¢/kWh and gas $1.58/L ($US 4.60/gal). I guess the question is how they allocate overall eletricity costs - I assume a meter fro the suite but a common meter for the whole garage?
A more interesting concern is what happens when there are plenty of vehicles charging simultaneously. How many garage outlets per panel breaker? What’s the total capacity of the garges panel? Otherwise when your neighbour Bob gets his new car, you’ll come out in the morning to find neither is charged.
Agreed, but that’s what the EPA says. I expect it to be closer to 250 under most conditions, but even with the more conservative number it’s not quite as bad as 3AxisCtrl’s estimate gives.
What else is on the same circuit is a concern. I’ve tripped the breaker at my parent’s place plugging into a circuit that we didn’t think was shared, but was. And I learned at my place that my dishwasher was on the same circuit as my garage door opener (which is where I’d plugged in). Tripped once I started using the timer on the dishwasher to run at the same off-peak hours as the car. An easy fix, though.
I got it solved. By putting a board up over the beams, I got the heavy part of the cord supported, and ended up not needing the 15-ft extension, but I was still a little short, so I am using the short cable with the breaker, which has not been tripped.
The car will charge about 50% in about 9 hours, so I should be able to get a full charge every day except Thursday. After I meet my son’s bus on Thursday, I’ll have to go some place to charge it to about 75% from 40%. I’ll arrive home with it a little above 50%, and have a full charge Friday, which is my biggest driving day, but then it has all of Shabbat to recharge, and I do very little driving on Sunday.
It should be 100% on Monday morning.
The charge I’ll have to pay for will cost about $3.
Thanks for all the responses.