One of the best energy-saving features to go into a building is sustainable lighting. Lighting typically accounts for roughly 30 percent of a building’s total energy usage, therefore, our electrical engineers design the most sustainable lighting solutions in any commercial facility to ensure optimal energy savings. Our team members are the experts in transforming darkness to light in each of our projects by combining beauty, utility, and efficiency. Together they make something truly spectacular.


These days, exterior lighting now needs to meet codes for a dark sky and light trespass control. This means that any artificial lighting needs to be aimed downward and ‘cut off’ to avoid lighting adjacent properties. This brings in the popularity of both high-efficiency lighting and natural daylighting to brighten buildings.


High-Efficiency Lighting

LED lights are being used almost exclusively for exterior applications because their extremely long lives mean fewer replacements—replacements that require the use of expensive lifts. Interior lighting is both an art and a science. Often architects will select specific fixtures for aesthetically sensitive areas within buildings. LED lights are often selected now for their energy efficiency, long life, and ability to be dimmed where daylight controls are used. LEDs are also capable of producing an array of colors which are increasingly being used outside and inside of buildings.



Optimal use of daylight plays a critical role in sustainable building strategies because it’s a free, renewable source. Daylighting, shading and lighting control strategies can help to provide a naturally lit and cost-effective building. The most common design sources of natural light include:

●        Windows

●        Skylights

●        Light shafts

●        Atriums

●        Translucent panels.


The careful architectural design of a building helps maximize natural light while maintaining indoor temperature regulation and light glare reduction. Before including extensive daylighting features in a building, designers orient the structure to maximize daylight potential, taking into account the sun’s daily movement. Not only does optimal use of daylighting require zero electricity, but it can also bring to life other important aspects of a building, such as architecture, color, and textures. Occupants of buildings with more daylighting than artificial lighting also tend to see health and attitude and improvements.


Over the years, Gausman & Moree has completed projects where engineering for optimal lighting and daylighting has been utilized. One of our more elaborate projects was for St. Louis County Government Services Center in Duluth, Minnesota, which has a complete LED fixture retrofit with daylight controls. For more information about our electrical lighting engineering services, contact us at (651) 639-9618.