In Letter to States Education Executives, Eneref Institute Implores Schools to Include Interior Daylight in Classroom Lighting

Philadelphia – As part of the Eneref Institute #WellnessFriendlySchools Campaign, Eneref sent a letter to all 50 state education executives, urging them to act on the findings of a recent Eneref Report on classroom lighting. The Eneref Report examined the biological impact of Natural Interior Daylight in classrooms on improved student performance.  

Link to campaign: https://eneref.org/impact/wellnessfriendlyschools/

Eneref has reached out to school executives in order to place this report in the hands of authorities responsible for student performance. The bottom line of the Eneref Report is this: The right daylight in classrooms alone can improve student test scores.

Eneref Institute is a research and advocacy organization for sustainable development. The Eneref campaign aims to achieve a healthy school environment through an earth-friendly and wellness-friendly approach to building schools. 

As presented in the letter to school executives, the Eneref Report’s key conclusions describe:

  • A high correlation between schools that reported improvements in student test scores and those that reported greater amounts of daylight in the classroom.
  • A possible disruption of the molecular clocks that regulate the temporal dynamics of cellular activities caused by poorly designed artificial electric lighting.
  • The importance of illuminating schools with natural daylight to help students’ bodies regulate melatonin, reinforcing circadian wellness and improving performance. ­

The Eneref Report, titled “Classrooms Optimized with Natural Daylight Increase Student Performance,” can be downloaded here: http://bit.ly/eneref-skylightled.

As the Eneref Report states, careful architectural planning and utilization of daylight to illuminate rooms, in conjunction with LED electrical lighting, is not only efficient for buildings but also healthy for occupants, both students and faculty alike.

 

Featured

  • UNT Dallas Holds Ribbon-Cutting Ceremony for $100M STEM Building

    The University of North Texas at Dallas in Dallas, Texas, recently celebrated the opening of its new, $100-million STEM Building, according to local news. The ceremony on Dec. 2 preceded the first day of classes in the facility on Jan. 12, 2026.

  • classroom with crystal ball on top of a desk

    Call for Opinions: Spaces4Learning 2026 Predictions for Educational Facilities

    As 2025 winds to a close, the Spaces4Learning staff is asking its readers—school administrators, architects, engineers, facilities managers, builders, superintendents, designers, vendors, and more—to send us their predictions for educational facilities in 2026.

  • NWEA Report Recommends K–12 Natural Disaster Recovery Strategies

    The Northwest Evaluation Association (NWEA), a K–12 assessment and research organization, recently announced the release of a new playbook for schools and communities recovering from extreme weather events, according to a news release.

  • LAN, Inc. Opens Office in College Station, Texas

    Lockwood, Andrews & Newnam, Inc. (LAN) recently announced the opening of a new office in College Station, Texas, to support its regional client base, according to a news release. The organization provides engineering, design, and program management services for water, wastewater, transportation, stormwater, and education clients in the Brazos Valley.