Solar street light Solar configuration calculation
street light Solar configuration calculation

With the increasing scarcity of traditional energy sources, solar street lamps will be more extensive, especially the field of solar power in just a few years has developed into a mature sunrise industry.
1: one of the most important part in restricting the application of solar power is the price of a dual solar lights, for example, two load of 60 watts (in the middle and lower reaches of the Yangtze River effective light 4.5h / day, night discharge 7 hours, increase the panels 20% reserve amount) panels to around 160W, $ 20.00 per watt, the panels will be 3200 yuan, plus about 180AH battery pack charges in 1800 about the entire street lamp one-time investment cost is much higher than the city circuit lights, caused a major bottleneck of the Street light solar applications.
2: The battery life should be considered in the entire street lighting system, applications, battery warranty for three years or five years, but the general battery in a year, or even half a year later there will be charging dissatisfaction some of the actual charge rate may drop to about 50%, which will affect the continuous rainy days during the normal lighting at night, so I chose a good battery is particularly important. 3: Some Contractors often use LED lights as solar street lamp lighting, but the uneven quality of the LED lamp, the light fades serious LED six months it is possible attenuation of 50% light. So be sure to choose the light fades slower LED lights, or the selection of the discharge lamp, low pressure sodium.
4: The controller of choice is often also works to ignore a problem, the quality of the controller layer poor missing the 12V/10A The controller market price of 100-200 per month, although the entire street lighting system, the smallest value part, but it is a very important aspect. The controller will have a direct impact on the life of the components of the street light Solar system, and the purchase cost of the entire system: You should select the low power controller, controller 24 hours of uninterrupted work, as it s own power consumption of a larger, will consume some energy, the best choice for the controller of the power consumption of 1 mA (MA). : Charging high efficiency controller, with the maximum current MCT charge mode of the controller can automatically track panels, especially in the winter or light period, MCT charge mode efficiency of about 20% higher than the other. : Should be selected to adjust the power controller, a two-way power adjustment controller has been widely, few pedestrians at night time period can be automatically shut down one or two lighting to conserve electricity, but also can adjust the power for the LED lights . In addition to select more than power-saving features, you should also pay attention to the protection function of the controller batteries and other components, like a trickle charge mode controller can be well protected batteries, increasing battery life, the other to set the controller undervoltage protection value, as under-voltage protection value adjustments ≥ 11.1V, prevent the battery from over discharge.
5: the distance from urban areas distant places should pay attention to security work, many engineering companies because of the construction negligence, there is no effective anti-theft, resulting in the theft of batteries, solar panels and other components, not only affects the normal lighting, but also created unnecessary damage to property. Case stolen the majority of batteries, battery buried with the pouring of cement is an effective anti-theft measures, the installation of the poles on the battery box is best for welding reinforcement.
http://www.coursertech.com.cn/