Use time controls for your school's heating and air conditioning. For example, start the central heating 30 minutes before the children arrive at work and stop it 30 minutes after they leave. Check that full lighting is not being used unnecessarily outside normal school hours. For example, cleaner’s may need only partial lighting when working. Light switches could be colour coded for different activities. Break up large areas of lights that are on a single switch into separately controlled areas, particularly areas near windows and partitioned off rooms. This enables lights to be switched off when they're not needed, put light switches where people can find and operate them. Form a student ‘energy patrol’ to ensure lights are out when rooms are empty. Set targets and remember friendly rivalry can achieve great things, have students make signs and stickers to remind people to turn off the lights when they leave a room. when you go home, log out and turn off your computer and monitor and accessories at the power switch. Switch off photocopiers and printers at night. Purchase electrical equipment with a high energy saving value.