Solar street lights are a great way to bring in lighting without having to trench in traditional electrical power; however, they can be costly. There are ways to lower the usage throughout the night and lower the cost of the solar power. Using sensors are one of the best ways to lower the power needs of the solar street light and provide a much faster ROI then ever imagined.
Since people do not typically travel down every road at all times of the night, figuring out the most active times is key to making the sensor street lights work well. The lights would turn on at dusk and run a set number of hours or time of night, say 4 hours or till 11pm. The lights can either then dim to a lower intensity to still provide lighting or turn off entirely. The lights can come back to full intensity when there is movement detected and then dim back when there is no longer movement. They can also come back on for a set number or hours before dawn or at a specific time and run full till dawn.
These types of solar street light application are perfect for neighborhoods and HOAs, even small communities. Use of the sensors can halve the amount of solar needed; therefore, reducing the cost of the solar street light assembly. By lowering the power usage and cost will make solar a more feasible option and help communities be a little greener in the end by reducing their overall electrical usage.