Our school buildings have 27 classrooms, 6 specialist rooms, 1 library, 1 ICT centre, ESOL rooms, administration rooms and offices. Each room has florescent lights of n wattage. The changing areas and bathrooms have an additional florescent lights. These lights are on for an average of ten hours a day.
1. Given the cost per lightbulb run at ten hours a day, how much does your school pay each month for lighting?
2. If the school changed its bulbs to (your preferred energy-saving lightbulb here), how much would the school save per month in electricity bills?
3. If the school turned off the lights during peak daylight hours, and relied simply on sunlight from the ample windows in all buildings, how much money would the school save per month?
Present your findings to the school administration in a proposal that they make the change.