The younger the students, the more supervision needed. The students must want to participate and be able to carry out the tasks consistently and honorably. Sponsor, Principal and teacher recommendations. It might be appropriate to discuss energy production, fossil fuels, consumption, pollution, waste and high cost. Invite them to count light bulbs in one room and multiply by the number of rooms in the swchool, then add other schools,cities and the whole state.
Energy efficiency benefits people, the schooll, community state and planet.
Sponsors may want to use contracts. The contracts underscore the importance of being on the team and are reminders of duties which students must perform. When the outgoing team trains the incoming team they can pass out thankyou notes to rooms which had a good record during their tour of duty. An assembly to introduce everyone to the program is helpful. Inform the media.