Costas Athan
Senior member
Um, not sure if you're serious? I'm not saying gasoline is better. I just take issue with calling EVs "zero emission" vehicles when they are not. Indeed it is never a zero-sum game, even with renewable resources.
For the sake of argument let's only consider the operational requirements, not the initial energy requirements needed to build the EV or power source.
See my first post...
I never said there wasn't a benefit of using electric cars. Their equivalent emissions are a fraction of even the best ICE cars. I never even implied that they were a bad idea. I just take issue with how things are said and have concerns about the safety of EVs.
Read this article: http://www.eia.gov/forecasts/aeo/er/early_elecgen.cfm
By 2040 renewables are projected to be a whopping 16% (vs 12% now) of the US energy supply. 27 years from now is quite a long ways away, and renewables will still be a small fraction of the energy supply in the US. That's not much more after a relatively long time.
I never 'added' their emissions. I said that burning natural gas produces "some amount of emissions." Am I wrong?
Fortunately, someone did this for us: http://www.afdc.energy.gov/vehicles/electric_emissions.php
I must correct myself here though. Apparently the equivalent emissions aren't nearly as different as I had previously learned. EVs produce about 62% of the CO2 equivalent emissions as an ICE.
Note that I never claimed to add up actual emissions. I never tried to calculate the benefit of EVs here. I used a rule of thumb, as I stated. I learned that rule of thumb when I was simulating and analyzing driving cycles of various vehicles during college. Clearly the cost of gasoline and electricity have changed since then and that number is no longer quite accurate.
You should use the new MPGe standard for further information on how an EV stacks up: http://en.wikipedia.org/wiki/Miles_per_gallon_gasoline_equivalent
Nuke plats are very good. In fact, they're some of the most efficient power generators in the US right now. I will grant you that. I question your magical 99% number there.
There's no problem with using sources. However, you offer little insight or thought about interpreting the sources you quote. Nor did you use them to address any of my points. You stated numbers that were accurate, but did not address anything I actually talked about, only things you seem to have made up that I never said.
I didn't say that you said gasoline is better. From your initial post I thought you tried to say that the benefits from EVs are marginal. I thought you implied the emissions are the same...
By 2040 coal will be the source only of 35% of total energy in USA according to your link. I think that's the most important thing. Other sources which aren't considered renewable have a less severe impact than coal. And 2040 is only 26 years away. It's not that far away. Our generation will leave to see the change (hopefully).
As for the 99% is just a symbolic number. I tried to emphasize that the indirect emissions are just a drop in the ocean.
With the sources I used I tried to show two things. That there are renewable sources with zero emissions and that some of the none renewable sources have very low emissions compared to coal. I quoted certain sites in order to provide real numbers. What I tried to say is that there is a benefit from EVs that can't be overlooked. Gasoline has always high emissions but other power sources we use to charge our vehicles have zero or little (compared to gasoline) emissions.