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Some states are spending more on energy than the combined cost of supplies and books—in a time of rising concern over energy supplies and tight school budgets.

Numerous studies have confirmed the relationship between a school's physical conditions and improved attendance and test scores.

Excerpts from:
Daylighting in Schools, Reanalysis Report October 2003
  • Overall, elementary school students in classrooms with the most daylight showed a 21% improvement in learning rates compared to students in classrooms with the least daylight.
  • A grade level analysis found that the daylighting effect does not vary by grade.
Excerpts from:
Windows and Classrooms: A Study of Student Performance and the Outdoor Environment October 2003
  • Due to varying daylight availability, campus layout often determines if the location will be a successful candidate for daylight harvesting.
  • Factors of an indoor environment (such as air quality and acoustics) which can be affected by daylight are important considerations in effectively designed learning environments.
Excerpts from:
Daylighting in Schools
An Investigation into the Relationship Between Daylighting and Human Performance - Condensed Report
August 20, 1999
...students in classrooms with the largest window areas were found to progress 15% faster in math and 23% faster in reading than those with the least.….

...three districts have different curricula and teaching styles, different school building designs and very different climates. Yet the results of the studies show consistently positive and highly significant effects.

Excerpts from:
IESNA Paper #41
Daylighting Impacts on Human Performance in School
Lisa Heschong, (2) Roger L. Wright, Ph D. and (2) Stacia Okura
…The Swedish researchers concluded that windowless classrooms should be avoided. In the United States, a North Carolina architectural firm has received attention for reporting that student test score performance improved in their daylit schools compared to neighboring non-daylit schools. While these studies all have methodological limitations, they have suggested a consistently positive effect for the presence of daylight on student performance...