@article {10.3844/erjsp.2015.25.41, article_type = {journal}, title = {Retrofitting the Electric Lighting and Daylighting Systems to Reduce Energy Use in Buildings: A Literature Review}, author = {Dubois, Marie-Claude and Bisegna, Fabio and Gentile, Niko and Knoop, Martine and Matusiak, Barbara and Osterhaus, Werner and Tetri, Eino}, volume = {6}, year = {2015}, month = {Aug}, pages = {25-41}, doi = {10.3844/erjsp.2015.25.41}, url = {https://thescipub.com/abstract/erjsp.2015.25.41}, abstract = {This paper presents a literature review about energy-efficient retrofit of electric lighting and daylighting systems in buildings. The review, which covers around 160 research articles, addresses the following themes: (1) retrofitting electric lighting in buildings, (2) electric lighting energy use and saving potential and (3) lighting retrofit strategies. The retrofit strategies covered in the review are: replacement of lamp, ballast or luminaire; use of task-ambient lighting design; improvement in maintenance; reduction of maintained illuminance levels; improvement in spectral quality of light sources; improvement in occupant behavior; use of control systems; and use of daylighting systems. The review indicates that existing general knowledge about lighting retrofit is currently very limited and that there is a significant lack of information concerning the actual energy performance of lighting systems installed in the existing building stock. The resulting key directions for future research highlights issues for which a better understanding is required for the spread and development of lighting retrofit.}, journal = {Energy Research Journal}, publisher = {Science Publications} }