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The Advantages of Passive Solar Lighting (Daylighting)TJ Purewal
What is Passive Solar Lighting?
Passive Solar Lighting, or Daylighting is the use of direct, diffused or reflected sunlight to
provide added lighting for buildings.
Daylighting can fully replace electric lights.
Advantages
of Daylighting
Saves Costs
Passive solar energy can reduce monthly energy expenses by 13.8 percent.
All heat and light generated by your passive solar system is free.
No Equipment to Buy or Maintain
Homes with passive solar systems do not require central heating or air conditioning systems.
Passive solar systems require no maintenance, as there are no filters to change or ducts to
clean.
Fossil Fuels Conserved
Homeowners who get their power from local utility companies ultimately rely on fossil fuels for energy. Therefore, using
passive daylighting conserves fossil fuels.
Environmental Benefits
Passive solar design is a completely clean energy source. It produces no harmful
fumes, pollutants or emissions that can harm the environment.
Daylighting Techniques
Effective and Successful Daylighting is achieved through…
Positioning and sizing your windows to allow for sufficient natural light to enter
your home.
Using exterior shading to diffuse the sunlight
Solar Daylighting Windows
Solar daylighting primarily occurs through large windows. Buildings that use solar
daylighting require specific placement and spacing of windows. For example, windows
that are higher up on a wall distribute sunlight better.
Clerestory Windows
Skylights
“In my view, no space without natural light is worthy of
human occupation” ~ John Saladino
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