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It is usually dramatically cheaper to charge at home at night. For example, in Alameda California I pay: * 15.17 cents per kWH during off-peak times (nights a
by mdeeks 3y ago
It is usually dramatically cheaper to charge at home at night.
For example, in Alameda California I pay:
* 15.17 cents per kWH during off-peak times (nights and weekends)
* 50 cents per kWH during peak times (5pm-9pm)
The Supercharger down the road charges:
* 51 cents per kWH from 12pm-11pm (the time you're most likely to use it)
* 41 cents per kWH from 11pm-4am
* 32 cents per kWH from 4am-12pm
No one is going to leave their car at a Supercharger overnight though. So more realistically you're paying over 3x the cost if you use public Superchargers.
My Model Y has a 75kWH battery so its about ~$11 to charge it from zero to full at home vs about ~$38 at a Supercharger during the day.
- boringg 3y agoHow do the economics work for the company running the chargers?
- mdeeks 3y agoGreat question! I don't know. I assume that Tesla pays the owner a flat monthly fee for spots but who knows. Likely some spots are more valuable than others. In some places Superchargers might bring in more people to the local businesses, but in others it might cost the owner limited parking spaces and hurt foot traffic.
- boringg 3y ago38$ for the day is actually more significant than I thought.
- mdeeks 3y agoCompare that to gasoline at ~$104 to fill a tank of gas on an Audi Q5 (rough equivalent of a Model Y. It has an 18.5G tank and premium gas is $5.65 here). The Q5 does get far more range though. Something like 450+ miles vs the 330 of the Model Y. Maybe it is better to judge how many miles a dollar gets you? 8 miles per dollar for the Model Y vs 4.3 miles per dollar for the Q5. If you charge at home during off-peak hours, like most people do, the numbers get a ton better.
- tzs 3y agoA month or so ago I did a comparison between charging a Chevy Bolt at home, with just a level I charger, and putting gas in a Nissan Versa, Hyundai Elantra, or Kia Forte. The Bolt will be cheaper per mile if G/E > 9.4, where G = price of gas in $/g, and E = price of electricity in $/kWh I looked at average gas prices and residential electrical rates in all 50 US stats plus DC, and in all of them G/E > 9.4. This comment has a table showing G and E for all states and DC at the time [1]. [1] https://news.ycombinator.com/item?id=36978950 https://news.ycombinator.com/item?id=36978950