A Case Study Addressing the Benefits of Integrated Solutions for Daylighting and Electric Lighting in the Retail Sector
Abstract
This article describes the field monitoring of daylighting and electric lighting integrated design for a large furniture store. First in its genre, the store includes several areas of the showroom provided with abundant daylighting. For the monitoring, the areas of the living rooms and the gardening exhibitions were selected. They include wide glazed areas, daylight harvesting systems, and tunable lighting. The monitoring procedure assesses four aspects: energy use, objective or measurable lighting conditions, circadian potential, and subjective evaluation of lighting. The preliminary results, which are based on qualitative observations, suggests that the integration project was successful in terms of energy saving and users appreciation. The monitoring suggests that objective and subjective evaluations should be always combined for a full understanding of the integrated project. Keywords: daylighting; electric lighting; controls; integration; human centric lighting; energy saving; TEA; OBEA.