Your mother realized that an open door wastes energy, and she knew the energy has a cost, because she paid the heating bill. You can see that energy use depends on the equipment you are using, it's efficiency and reliability, and on behavior. Whether we use energy wisely or wastefully depends on the choices we make. For example, it does not make much sense to change to higher efficiency lighting and then leave the lights on all the time. The savings are canceled by an increase in usage.
Buildings don t use energy, people do.
Project and Exercises A. Measure and record the characteristics and equipment in your school that account for its energy use. Blueprint of your school 2. Ruler, tape measure, clip board and pad Steps 1. At a time that is not disruptive to classes, confirm that the blueprints accurately reflect the current school facilities. Note any changes that have taken place.