Is there a way to program the car to accept charge after a certain time?
Lets say I come home at 5pm, plug the car in, but don't want charging to start until 9pm (because electicity is cheaper then)?
It's an advertised feature in Model S that is not available yet. Owners on Time of Use metering are not happy :(
Actually, I have had a Nissan Leaf for 19 months and I exclusively use Time of Use Metering. I LOVE it. I live in San Diego, CA and I have a separate meter for my EV. I always plug my Leaf in when I come home and I know that it will never charge between noon and midnight (only because I programmed the Time of Use 'program' to work that way). So if I come home at say 3 p.m. and plug in my EV it will not begin charging until midnight, when the rates drop significantly. When I wake up the next morning it is fully charged.
Specifically, the rate from midnight to 5 a.m. is ~7 cents/Kwh ('Super Off Peak' as the electric company calls it) vs. something like 35 cents/Kwh from noon to midnight ('Peak' time). From 5 a.m. until noon the cost is ~15 cents/Kwh.
My point is for me it is perfect because I don't need to charge during the highest demand time (Peak) times and with a Tesla it would be even better because I would only charge during Super Off Peak time because during those five hours (midnight to 5 a.m.) I could more than 'top off' the batteries.
With the Leaf I originally only allowed the Time of Use to charge during Super Off Peak time but given the limited range of the Leaf (60 miles for me) I have been charging in the morning (~15 cents/Kwh) for the last six months. I don't use a lot of charge during this time frame, but sometimes if I come home around 10:00 a.m. and have driven say 15 miles that morning, I can fill it back up before noon (when I have programmed the charger to never charge).
When I calculate my MPGe I get around 160. My usage over the last 19 months has been that I have averaged almost exactly 1,000 miles per month and my electric bill is about $28 per month. Like I said, with the Time of Use program I participate in I was given a separate electric meter for just my EV.
Participating in the Time of Use program certainly impacts when I charge my car (which is exactly what the electric company wants).
I know I save money with this program and with a Tesla it would be even more ideal because 100% of my charging would occur during Super Off Peak time.
He meant that TOU metered owners are not happy because its not yet workable with the MS. They will become happy, like you, when the app appears.
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