Hybrid cars are good for us, right? So policymakers should provide incentives -- things like tax breaks, access to HOV lanes, and free parking for hybrid drivers.
Well, not so fast, says a great article in today's Washington Post. There's growing reason to believe that those incentives for hybrids will make things worse -- actually generating more gasoline use, not less. That's because many of the incentives confuse the means for the end.
Reducing fuel use (and attendant GHG emissions, air pollution, etc.) is the goal; getting drivers into hybrids is simply one instrument in pursuit of that goal.
But one of the more popular incentives to boost fuel efficiency has been to encourage hybrid ownership by offering hybrid drivers access to HOV lanes, even when the drivers are alone. And as the article rightly points out:
An incentive -- whether it's access to a carpool lane or cut-rate financing -- still aims to put another car on the road, and that undermines efforts to encourage carpooling.
Giving over HOV lanes to hybrids is probably counterproductive. In Virginia, where allowing hybrids in HOV lanes was pioneered, officials are worried that solo drivers in hybrids are clogging the high-capacity lanes and thereby discouraging carpools (because carpooling is no longer any faster than driving alone). In fact, 25 percent of all Virginia HOV lane users are hybrid drivers. And despite their hype, hybrids are not so fuel efficient that they can offset the fuel efficiency of an ordinary car with two or three riders. So the fuel efficiency of Virginia hybrids may become illusory as the vehicle fleet actually consumes more gas because drivers give up carpooling.
Same goes for other popular incentives: tax breaks and free or reduced-price parking. These incentives encourage people to drive by making it cheaper.
And if some incentives are wrong-headed, it's because they seem to miss the reason why hybrids are good in the first place. If we want to reduce fuel use, it's hard to see why hybrids deserve special tax breaks not afforded to buyers of other fuel-efficient, gas-powered cars (some of which are actually more efficient than certain hybrids). What's so special about hybrids?