First of all, keep the door manual if it isn't too heavy. If you must go with a power door, select the most efficient door motors and hydraulic pumps possible. Second, install fluorescent lights instead of incandescents - and always regulate with timers. If you wash your car at home, use hoses that use less water by mixing it with air. Your planet - plus your electricity and water bill payments - will thank you.
Do you have more ideas we can send to the lecturers? (I was thinking about good outlets for EV cars)