Active core sunlighting is the subject of a new design guide (DG-31-18) published by the Illuminating Engineering Society. With this approach, sunlight is captured using solar-tracking optics, delivered deep within the building core, and distributed as general, task and/or accent lighting. By replacing electric lighting at least a few hours of the day, active core sunlighting can save energy and improve lighting quality. This article, which I contributed to the June 2019 issue of ELECTRICAL CONTRACTOR, summarizes the IES guidance.
Click here to read it.
