Evaluation of daylight performance metrics according to country guidelines: The case of educational buildings in Turkey

BAYDOĞAN M. Ç., Özkantar V.

Energy and Buildings, vol.297, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 297
  • Publication Date: 2023
  • Doi Number: 10.1016/j.enbuild.2023.113487
  • Journal Name: Energy and Buildings
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Compendex, Environment Index, INSPEC, Pollution Abstracts, Public Affairs Index, Civil Engineering Abstracts
  • Keywords: Daylighting, educational buildings in Turkey, Sustainability, Visual comfort metrics
  • Erciyes University Affiliated: Yes


According to the 2021 data from the International Energy Agency, educational buildings had the highest energy consumption after residential and office buildings. The number of schools affiliated with the Republic of Turkey Ministry of National Education (MoNE) is 67,125 and the number of users is over 20 million (preschool, primary school, secondary school), which is increasing daily. Providing adequate lighting and visual comfort conditions increases education quality and is favorable for health. In educational buildings, energy consumption can be saved by changing space usage with different education models, changing/transforming spaces with the requirements of the age, and optimizing space-related design conditions. Educational guidelines published by different institutions and organizations in various countries emphasize the importance of sustainable lighting conditions in educational buildings. In the guideline published by MoNE in 2015, it is not possible to optimize the energy required for lighting with the standardized building type according to different climate zones. Natural lighting conditions need to be investigated in detail with other issues such as space characteristics (size, furnishing, function, window size, etc.), latitude, sunshine duration, climate, direction, orientation, etc. Educational buildings, which have been produced as a uniform project in Turkey in recent years, need to be re-evaluated according to the physical and psychological needs of the users, architecturally flexible uses, building performance, and energy-efficient use according to different climate zones. This article aims to analyzing the daylighting standards in educational buildings and regulations that are applied internationally to define a set of rules that could be applied in Turkey to supplement the local legislation.