Quote:
Originally Posted by kknudson
When you take the rare earth metals required for the motors and batteries, add in the energy to produce those batteries then to dispose or hopefully recycle the batteries the savings in energy over the life of vehicle is negated.
I agree there are conflicting opinions as to how much, but everything I have read shows most or all + of the savings are lost.
From what I have read Solar is somewhat similiar, although they have gotten much better.
An article I read a few years back showed that over the life of the solar cell, it will only procduce about 80 to 90 % of the energy used to produce them.
I do not agree, but it was written by a scientist from one of the producers of solar cells.
Finally, VOLVO Diesel Hybrid
http://www.smartplanet.com/technology/blog/transportation/volvo-launches-worlds-first-plug-in-diesel-hybrid/135/ |
No way Jose. When you take the rare earth metals required for the motors and batteries, add in the energy to produce those batteries then to dispose or hopefully recycle the batteries the increase in energy required
is about 1% more than a conventional vehicle.
Where you probably pulled your information from was a "study", and I say that very loosely, by CNW marketing where they equated vehicle cost with energy use, then made all sorts of other weird assumptions about vehicle lifespan to "conclude" that a Hummer used less energy than a Prius,
which was total BS. That said, it was
very good marketing since people believe a marketing firm more than they believe scientists from MIT.
The same has been said for solar panels, but it's pure BS just like the CNW blurb was.