All depends upon the sources of your power:
How Green Are Electric Cars? Depends on Where You Plug In - NYTimes.com
How Green Are Electric Cars? Depends on Where You Plug In - NYTimes.com
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Yep, Nat Gas and Wind are up significantly to make up for coal drop.Too bad they used data from 2007 since coal use has dropped since then.
It appears that the Union of Concerned Scientists use well-to-wheels analysis on the EVs. Does anyone know if they used well-to-wheels analysis on the ICE cars?
That is my #1 peeve about these comparisons.
It's my peeve too!
We should start a club.
The U.C.S. report, which takes into account the full cycle of energy production, often called a well-to-wheels analysis,...
I'd really be surprised if they did not apply the same criteria to ICE vehicles as EV's. This is not a report by Fox news or John Petersen after all.
The EROI for a PV system is generally around 10:1 or so - meaning that over it's useful life it will generate about 10x more energy than used to build it.I don't recall where I read this, or how old this info is, but regards to using PV's to generate electricity to charge EV's, how much energy (coal or otherwise) is used to create the PV panels? I've read that it takes as much energy to create one than it can create over it's life. Is that right? If so, wind seems like a much better solution for a zero-emission system (even though enery is required to create the wind components).
The full report, which should include their methodolgy, is supposed to be out today I think.They provided some of the heuristics they used for EVs but completely neglected to tell us any of the methodology for ICE. Without that data we can't evaluate it. I consider this a worthless report at this time. Show me the data and let me know that transportation, refining and other costs are included for gasoline. I also want to see the proportion of tar sands production included as well as oil spill costs.