BEHA is a triplane, a kind of aircraft associated more with the Red Baron and World War One than modern craft. BEHA's wings are also covered in solar panels, so the triplane shape is an added bonus: with more wings, more surface area can catch the sun and better recharge the plane's batteries. To add to its renewable power sources, the BEHA's wind turbines can draw power from the air itself. The "Bio" in BEHA comes from the biodiesel engine, which operates a pusher propeller. Electric engines will take off and land the plane, but for longer flights the biodiesel engine will provide additional power while recharging the plane's batteries.