For electric cars and maybe wind power: Hawaii.
There are not many roads in Hawaii. Thirty miles is a long drive. A battery car could make sense here. You do not need a heater and on the Leeward side, not much of an air conditioner.
http://www.nytimes.com/2008/12/03/te...i.html?_r=1&em
Better to make the cars out of fiberglass. The salt air makes stuff rust like crazy in Hawaii.
Also, Hawaii is in a trade wind zone. Twenty knot winds 355 days a year. Probably more at the ridgeline.
OK. Hawaii is not much of a market and those conditions cannot be replicated in too many other places, but it is a valid niche.