If you've seen one of the Joe Bornstein-themed Priuses driving around Maine, you already know that Joe likes to be eco-friendly whenever possible, which is why he's promoting the University of Southern Maine's Greater Portland Energy Expo. hereTo be held this Saturday October 20th from 10am-2pm at USM, the Expo will feature presentations on energy efficiency, solar panels, electric vehicles, and more. Joe offers his thanks to USM for spreading awareness about the importance of sustainability, and urges Portlanders to learn more about this event here.