As the traditional energy increasingly scarce, the application of solar energy will be more and more widely, especially in solar power field within the short several years has developed into a mature sunrise industry. 1: currently, restrict the application of solar power is one of the most important part of the price
along with the increasing shortage of traditional energy sources, the application of solar energy will be more and more widely, especially in solar power field within the short several years has developed into a mature sunrise industry. 1: currently, restrict the application of solar power is one of the most important link is the price, with a light dual [solar street lamps Solar street light is a crystalline silicon solar battery power supply, valve control type sealed and maintenance-free battery ( Gel battery) Store electricity, super bright LED as light source, lamps and lanterns and controlled by the intelligent charging and discharging controller, is used to instead of the traditional public power lighting lamps. 】 For example, two road load for 60 watts, ( 4 effective light in the middle and lower reaches of the Yangtze river region. 5 h/day, 7 hours each night discharge, calculate the panels to 20% increase in reserve) The panels will need to about 160 w, calculated at 20 yuan per watt, the cost of the panels will be 3200 yuan, plus 180 ah battery costs are at around 1800, the whole street lamp one-time investment cost is much higher than the utility street lamp, caused a major bottleneck in the field of solar street light applications. 2: the service life of the battery should also consider in the whole street lamp system application, usually the battery warranty of three years or five years, but the general battery in one year or even half a year later will be in charge of discontent, some actual charge rate may fall to about 50%, it will affect the normal continuous rainy period of night lighting, so choose a good battery is especially important. 3: some project traders often choose LED lights as a solar energy street lamp lighting, but the quality of the LED lamp is uneven, droop serious LED light attenuation 50% six months could, so be sure to choose the droop slower LED lights, or choose electrodeless lamp, low voltage sodium lamp, etc. 4: the choice of the controller is often overlooked by engineering contractor of a problem, the quality of the controller layer is poor not neat, 12 v / 10 a controller market prices in 100 - 200 yuan, although is the minimum value in the street lamp system, but it is a very important link. Controller is good or bad will directly affect the solar street light system component life, and the purchasing cost of the whole system. One: should choose low power consumption controller, the controller working 24 hours a day, as their power consumption is bigger, will be part of the electricity consumption, had better choose power consumption in 1 ma ( MA) The following controller. 2: choose a controller of high charging efficiency, with MCT 【 MCT has multiple meanings. 】 The charging mode of maximum current controller can automatically track panels, especially in winter or insufficient light, MCT charging mode efficiency is about 20% higher than the other. Three: should choose to have two way to adjust power controller, adjust the power controller has been widely promotion, deserted in the night time can be automatically shut down all the way or two way lighting, save electricity, can also LED lights for power regulation. Select the saving function, but also should pay attention to the protection function of controller for battery and other components, as has a trickle charge mode controller can be very good to protect the battery, increase the service life of battery, the other set controller under-voltage protection value, as far as possible the under-voltage protection value in 11 or higher. 1 v to prevent the battery discharge. 5: far away from downtown should also pay attention to the security work, many engineering contractor for construction of negligence, not effectively guard against theft, lead to battery, panels and other components are stolen, not only affects the normal lighting, also creates unnecessary damage to property.