The Big Green Bus visited the Energy Department and Secretary Chu this Tuesday. Ten Dartmouth students are touring the nation on the Big Green Bus to build enthusiasm for community involvement through environmental action. This is the 8th year this completely student run initiative has hit the road to travel 12,000 miles across 24 states on a reused, veggie-powered Greyhound bus. | Image: Justin Vandenbroeck, Energy Department

Every week, we'll feature our favorite energy-related photo here on, at, on Twitter via @ENERGY and on our Flickr photostream. For other photos of the week, view our gallery. If you have ideas for Photo of the Week, send us an email at