If only I did not have a cello to carry around occasionally to chamber music sessions, I would certainly have a small hybrid or electric vehicle instead of a standard car. But I’m a firm believer in using as little energy as possible and am happy to know that the National Park Service is doing their part.
I’ve noticed the solar panels at Yellowstone’s Lamar Buffalo Ranch, where I’ve spent some delightful times staying while taking classes at the Yellowstone Institute. The panels have been sitting there in a nearby field for several years, but I just learned how they are used: NPS staffers based at the ranch use a low-speed battery electric utility vehicle and get power from that EV charging station, running entirely on the sun’s energy.
The Huffington Post article where I read about this [in 2012] also mentions that Great Smoky Mountains N. P. (North Carolina and Tennessee), which gets some three times as many visitors annually as does Yellowstone, has at least 24 recharge stations. Even better located for catching the sun’s energy are the solar panels at Zion N. P. in southern Utah. Way to go, NPS!