Green banks offer nifty things like envelope-free ATMs and remote deposit capture so that business customers can deposit checks without visiting the bank. Some green banks emphasize home-efficiency projects, like outfitting homes with water-saving dual-flush toilets while others offer zero-interest loans to workers who buy cars that get more than 30 miles to a gallon. E3bank envisions becoming a leading green bank to support green building by having loan officers be accredited by the USGBC and empowering them to customize loans and lines of credit to commercial and residential borrowers planning green building projects and retrofits.