Natural Solar Lighting - An Untapped, Reliable Option for Solar Energy

A 'daytime alternative' for photovoltaic (PV)/solar cells for lighting your house or business is natural solar lighting, another type of solar power. This is also known as passive solar lighting or daylighting. Natural solar lighting takes direct advantage of the sun to light your spaces. Considering that in the United States, 22% of an average electric bill is for artificial lighting, natural solar lighting can mean significant savings. Furthermore, commercial buildings can save up to 40% on their lighting bills as well by installing more efficient lighting systems in that take better advantage of available sunlight. Some ways residences and commercial buildings can take advantage of natural solar lighting include adding more windows, installing skylights, retrofitting light tubes, and much more. They can also add light reflectors and light shelves.

The most conventional way to integrate natural solar lighting into your space is using regular windows to let sunlight in. Since windows are situated vertically into walls and combine different placements, a small number of windows can provide optimum lighting. Putting windows near light-colored walls, slanting the sides of windows (so the inner opening is larger than the outer opening), and using larger light-colored window sills are ways to optimize the amount of light windows can provide. Different kinds of glass and window treatments can also improve natural solar lighting. Meanwhile, light reflectors and light shelves can also be used to effectively enhance light from windows. Unfortunately, both light reflectors and light shelves are seldom used.

On the other hand, skylights and light tubes provide more light per area than even windows. They also distribute light more evenly and efficiently throughout a space. Skylights are commonly used in large commercial spaces while light tubes are "mini" skylights that can be used in houses. Light tubes are built into the roof and resemble recessed lighting fixtures on your ceiling. They take up very little space and can therefore be easily retrofitted into your existing structure.

By using natural solar lighting, you can make your home or business more energy efficient. There are many options for natural solar lighting ranging from windows to skylights that can be installed by a professional installer.