On Hybrids
Over at Wise Bread, Fred Lee writes about Honda Hybrids:
Hybrids are considered the wave of the future because they not only reduce emissions, addressing the issue of climate change, but they get great gas mileage, an important consideration with the current price of oil. It should be noted that hybrids can also improve the power of the engine, which compromises any advantages in fuel efficiency and emissions. Whatever the application, however, the technology makes the cars more expensive.
I wasn’t aware that the hybrids reduced emissions, so I went to do some research. According to this article, the reason that hybrids reduce emissions more than any other modern car is simply a function of their fuel efficiency:
The pollution associated with the production of fuel for hybrids is the same as the pollution created in the production of fuel for gasoline vehicles because they both use gasoline. The pollution is somewhat reduced for a hybrid vehicle because the vehicle has greater fuel efficiency.
Therefore, a hybrid car has no advantage over any traditional vehicle that gets similar gas mileage. In fact, the hybrid is at a significant disadvantage over a traditional vehicle because of the differences in their production processes (same source as the last quote):
The production process for the hybrid vehicle is very different than the production process of a gasoline vehicle. There are similarities especially in regards to the production of the gasoline powered engine. Thus the production of the gasoline powered engine in the hybrid is similar to that of a gasoline powered vehicle however the addition of the electric engine increases the environmental impact of the production of the hybrid vehicle. The greatest environmental impact comes from the pollution caused by the elaborate battery system that powers the electric engine. The battery pollution is substantial because the creation of the batteries requires destructive mining to produce the batteries and the caustic substances that power the batteries must later be disposed of. The caustic substances that power the batteries are very poisonous and when released into the environment leech into the waterways and poison groundwater.
But the hybrids get significantly better gas mileage than any traditional vehicle, right? Wrong.
The 1996 Metro’s average of 40 miles per gallon nears that of the hybrid 2008 Toyota Prius — priced at $21,000 for the cheapest model — and bests most current cars by a long shot, according to government ratings. Older models of the Geo Metro, specifically cars from 1991 and the XFi edition, have the same average as the hybrid.
Granted, it’s hard for a modern traditional car to get the same gas mileage as a Metro, because recent increases in required emission reduction technology and safety equipment have an impact on efficiency. Still, my 2007 Versa gets pretty close to 40mpg if I’ve been doing a lot of highway driving. The reduced emissions of a hybrid aren’t nearly enough to make up for the increased environmental impact of the batteries, even if the financial cost was the same.
None of this is to say that people shouldn’t buy hybrids if they want one. I seriously considered a Prius back when they were first introduced, because I wanted the cool touch-screen monitor that showed the fuel efficiency and power distributions. I’m just tired of people who’re supposedly environmentally conscious preening over their hybrid cars as though that choice makes them better than the rest of us — especially when their choice is actually more harmful than mine.