Solar Lighting Systems

Sometimes we get absorbed in our daily routine that we forget to go back and mention the fundamental basics of what the technology is?  In a simple sense solar illumination can be thought of as solar- meaning the sun, and lighting -meaning delivers bright.  So let’s now discuss the variety technologies that are all mentioned to as solar lighting but actually have altered ways of using solar and illumination.

A solar lamp also is known as solar light or solar lantern is a lighting system composed of an LED lamp, solar panels, battery, charge controller and there may also be an inverter. The lamp works on electrical energy from batteries, charged through the use of the solar photovoltaic panel.

Solar Sky Lights

There are solar skylights which interact with the sun and clouds to dim and brighten indoor lighting.  This is to conserve energy and a building’s interior lighting controls actually sense when the sun is available as natural delighting and when it is not available or cloud cover has formed dimming the daylight.  The solar panels are much minor and set on the roof and detect when the sun goes away by a drop in voltage on the energy in the solar unit.  The lighting levels gradually vary depending on the natural available daylight that is accessible.

Check: DEEM SOLAR -  Solar Garden Light , Solar Panel

Photovoltaic Lights

The second and most common way we at Deem Solar refer to solar lighting is again a photovoltaic (PV) module that collects energy from the sun and stores it in batteries to operate the required wattage of light at night-time.  This is usually used for power savings, cash savings, and ecological reasons.  These systems are called grid free or stand-alone meaning that they make their own electricity at that exact site.  This cuts down on constructions costs of underground wiring.  This is also common in nations where the grid is not accessible or is undependable.  These types of schemes are also used for safety purposes as if the gird fails at precise locations the lighting will still be obtainable. 

Hybrid Solar Lights

The Third technology which is gaining momentum in solar lighting is the grid collaborative solar lighting schemes or sometimes mentioned to as hybrid schemes.  These schemes actually have 3 meaning within their individual meaning.  One type of hybrid scheme is a system that usually only has solar modules and have no battery.  This system usually has a meter and what it generates while the sun out goes directly into the grid.  These are common among areas that utilities deliver incentives for power generation these are generally on a light pole but actually don’t deliver any power to operate the light. 

The second hybrid system has a solar module and a battery with the illumination system.  The solar makes the power and delivers the energy collected into the battery and works the light for specific hours then the system switches back to grid power.  This type of system is common where power is accessible at the pole but the customer would like to offset the costs of the electricity.  Either the light fixture needs to be bright and the solar would have to be too large to function it in a stand-alone fashion or the pole is existing and is limited on the number of batteries and solar that can mount to it.  The third hybrid solar illumination scheme is where 100% of the power produced is capable of operating the light fixture, but for additional security would like the grid available so it can change on in case the weather doesn’t keep up with the system.    

So now you know the main changes between the 3 main types of solar lighting. What kind of solar lighting do you notice mounted where you live and work?


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