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Ignoring improved efficiency and excluding other factors, converting all gasoline usage to electric would more than double US electricity consumption. Not a ba
by NickM 12y ago
Ignoring improved efficiency and excluding other factors, converting all gasoline usage to electric would more than double US electricity consumption.
Not a bad analysis, but there's a lot we're glossing over here.
For one thing, that 33kWh can get you about 100 miles in an average electric vehicle. That's compared to the average new US car which gets 25MPG, and existing cars out there average worse than that. So right away, there's a factor of four that we're leaving out here.
Further (as others have mentioned) it takes a huge amount of electricity to refine oil into gasoline. The electricity savings from not refining a gallon of gas are enough to drive an electric vehicle pretty far on its own.
Also, our grid and generating capacity are built to handle peak load, which (in most parts of the US) will occur on hot days when lots of people are using AC. On the flip side, the majority of electric car charging happens at night, so there's a lot of spare capacity already there.
If everyone switched to EVs, we'd probably need to build out more generating capacity, but probably not as much as your analysis suggests.
- DannyBee 12y ago"Further (as others have mentioned) it takes a huge amount of electricity to refine oil into gasoline. The electricity savings from not refining a gallon of gas are enough to drive an electric vehicle pretty far on its own." This isn't as much as you would think. The manufacturing electrical usage of the US (which includes this) is separated out on the EIA site, and you can simply subtract it :)