Saving Electricity with StreetLights
Looking at a nightview of earth's surface:
Much of the light we see is a result of streetlights reflecting from surfaces around it.
A person from Australia once told me that the reflected light from streetlights directly upwards is wasted and that one way to save energy would be to find a way to reflect less light from the streetlights into space.
Many streetlights especially those in areas with little traffic like residential areas and streetlights that are switched on during certain times of the night may not be needed since there are few cars and people moving along the street. So, it would be a far better use of energy if the streetlights were to switch on only when they are needed.
This could be accomplished through the use of motion activated streetlights, the lights would only switch on when a car or a person came within a certain distance of the light pole. Adjacent lights could communicate with each other so that they could all switch on if the moving object is traveling above a certain speed. Faster cars would require a longer lighted path in order to travel safely.
https://www.homedepot.com/p/eLEDing-Solar-Power-SMART-2400LM-Motion-Sensing-Outdoor-Integrated-CREE-LED-Brown-Street-Area-Light-EE815W-SH15/304124168
This technology is sufficiently easy to retrofit into existing streetlight light cases and if this is combined with low power consumption LEDs even further savings could be realized.
Much of the light we see is a result of streetlights reflecting from surfaces around it.
A person from Australia once told me that the reflected light from streetlights directly upwards is wasted and that one way to save energy would be to find a way to reflect less light from the streetlights into space.
Many streetlights especially those in areas with little traffic like residential areas and streetlights that are switched on during certain times of the night may not be needed since there are few cars and people moving along the street. So, it would be a far better use of energy if the streetlights were to switch on only when they are needed.
This could be accomplished through the use of motion activated streetlights, the lights would only switch on when a car or a person came within a certain distance of the light pole. Adjacent lights could communicate with each other so that they could all switch on if the moving object is traveling above a certain speed. Faster cars would require a longer lighted path in order to travel safely.
https://www.homedepot.com/p/eLEDing-Solar-Power-SMART-2400LM-Motion-Sensing-Outdoor-Integrated-CREE-LED-Brown-Street-Area-Light-EE815W-SH15/304124168
This technology is sufficiently easy to retrofit into existing streetlight light cases and if this is combined with low power consumption LEDs even further savings could be realized.
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