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User Evaluation of Visual Comfort in Some Buildings of the Daylight Europe Project.
Staffan Hygge and Hans Allan Löfberg
KTH, Centre for Built Environment, Gävle, Sweden
ABSTRACT
Use of daylight in combination with electric light should lead to considerable saving in electricity in many types of buildings as compared to a system using only electric light. The Daylight Europe project evaluates different ways to use daylight efficiently in new and old buildings. A technical solution is however not successful if the user of the building is not satisfied. User evaluations, so called post-occupancy evaluations (POEs), have been tried in some of the buildings to establish both a method that can be used in other buildings and to evaluate how successful the chosen system is.
We describe how a formal POE should be performed and also what can be achieved if not all conditions are fulfilled. Very few of the buildings in the Daylight Europe project were suitable for a formal POE. Other obstacles the researchers can encounter are also discussed. The questionnaire proposed and used is found as an Appendix.
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