Green School Lighting
Lighting is something that schools can change without building a new building. It also is one of the biggest users of energy in schools.
Using daylight well is an art. Here is a great example from the Blue Valley District in Johnson County, KS
This airy two-story entry lights the entrance all day. The windows face south and the uppers add solar gain in the winter.
This view looks north and has cool north light streaming in as well as bright morning light. There is some artificial light but only high on the left.
Daylighting a gymnasium is an important way to save energy. This gym has lots of small windows high on the walls and in the roof, too.
This library has it all going. Out of the picture on the right are big windows facing east. High on the left are wide slot windows admitting west light. In the middle are high-efficiency fluorescents lights bouncing indirect light off the ceiling and around the room. The result is a library that is bright and evenly lit with a minimum of electricity.
This classroom is in the Kiowa County Elementary School in Greensburg, KS. It's the town 90% destroyed by a F-5 tornado in 2005. The windows are high on the north admitting indirect light all year. The ceiling is reclaimed cypress wood from Hurricane Katrina.
The bright light is from south windows which have an overhang. In the summer the overhang will keep the direct sun out of the room. In this case there are strips of high-efficiency fluorescents on the ceiling.
This well-lit hallway has indirect lights and bright spots on the ceiling which spread the light around the hall. It's not necessary to have the halls as bright as a classroom needs to be.
Simple and cheap ways to save lighting energy are easy, they just require the cooperation of the students and teachers.
These stickers can cover your switch plates to remind everyone what to do. These are available from AwarenessIdeas.com.