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> As is, I get the lower EV rates through the whole house, whenever the utility company detects that I'm charging my car It wouldn't make much business sense f
by danans 4y ago
> As is, I get the lower EV rates through the whole house, whenever the utility company detects that I'm charging my car
It wouldn't make much business sense for the utility to lower your rates when you are charging your car. It's usually the other way around: you charge your car when the utility rates are lower. Which utility is this? Also how are they detecting a car charging vs some other large load like an AC or electric stove?
- nomel 4y ago> you charge your car when the utility rates are lower I'm not sure if it comes from state funding, or profit, but they want to incentivize charging at off peak hours. https://www.sdge.com/residential/pricing-plans/about-our-pricing-plans/electric-vehicle-plans https://www.sdge.com/residential/pricing-plans/about-our-pri... I'm not sure how they detect it, but it's reliable. My naive assumption is that they detect the sustained 7kW increase, in the wee-hours. I haven't attempted to trick it.
- danans 4y agoThose are time of use rates, so I don't believe it's detecting your car, but just incentivizing you to schedule your charging at the cheapest time. This is doubly true in California, where almost no utility will sell you power at low rates during peak demand hours.
- nomel 4y agoNo, it's absolutely detecting our car. That's what the support told us, and I see the days that I charge on my bill. They're always accurate.