It's weird, you'd think that the US would be leading with its combination of a powerful economy and lots of sun hours: Solar panels are more popular here than ever, even after the subsidies stopped two years ago. My parents are moving to the countryside and using part of the financing specifically for solar panels. They'll earn back the money in 10 years, at worst, and 5 years in optimal conditions. Every kilowatt from there on is free.
Cheap, cheap, cheap cheap cheep energy in the US. Solar? Solar we pay the same as you. What's gas cost per liter where you're at? I'll bet it's a factor of three or four more than it is here. I'll bet heating oil and electricity are similarly expensive. I pay less than a euro per liter for super unleaded and eight cents per kilowatt hour. Hard to incentivize renewable energy when dinosaur blood costs so little.
You bet yo' ass it's expensive here. I looked it up: the price at the nearest gas station is 1,65 euro ($2,28) per liter, and $0.96 per liter in the US according to Wolfram. Not that it's more expensive to make or to haul over here: the difference is all in taxes. Here's a Dutch news article which says that regardless of the oil price, the petrol tax is 72 cents, there's an additional levy and on top of that there's 19% regular VAT.
On the positive side, due to high fuel prices, public transport is a really viable option. It's about the same price per kilometer, but not having to pay off a vehicle and pay insurance makes it an economically more viable option. And money from the fuel tax can be poured into public transportation, which drives more people into trains and buses.
Public transport is actually stupid cheap in most of the US, too... it's just slllllllllowwwwwwwwww. I used to take the bus to college. If the price of the bus pass wasn't rolled into my tuition, it would have been three bucks a day for sixteen miles. On that route, it took about as long as driving and had the distinct advantage of dropping me off in campus, as opposed to the $8/day parking a quarter mile away. Same bus route went to a club I mixed at, too. Even followed the same route. Difference being the bus got there in an hour and a half. I could drive it in 20 minutes. Things get really stupid in LA - if you're on one of the subway lines you're golden. I could make it the six miles from North Hollywood to Hollywood and Vine faster than I could in a goddamn helicopter for $1.75. And while I could make it from the Long Beach Airport to NoHo for $4... it'd take three and a half hours.