What are the advantages and disadvantages of solar street lamps? It should be widely used1

Human the use of solar energy has a long history, as early as two thousand years ago during the warring states period in China, will know that harnesses the power of the sun to dry agricultural and sideline products. Development to modern, is increasingly extensive application of solar energy, including solar street light, solar water heater, LED solar street light and so on. The advantages and disadvantages of solar energy has the following points, respectively. A huge advantages:

: each year on the surface of the solar radiation that reaches the earth or the equivalent of about 130 trillion t BiaoMei, its total current can be developed in the world's largest energy. 

长久：根据目前太阳产生的核能速率估算，氢的贮量足够维持上百亿年，而地球的寿命也约为几十亿年，从这个意义上讲，可以说太阳的能量是用之不竭的。 

普遍：太阳光普照大地，无论陆地或海洋，无论高山或岛屿，都处处皆有，可直接开发和利用，且勿须开采和运输。 

无害：开发利用太阳能不会污染环境，它是最清洁的能源之一，在环境污染越来越严重的今天，这一点是极其宝贵的。 

缺点：

不稳定性：由于受到昼夜、季节、地理纬度和海拔高度等自然条件的限制以及晴、阴、云、雨等随机因素的影响，所以，到达某一地面的太阳辐照度既是间断的，又是极不稳定的，这给太阳能的大规模应用增加了难度。

dispersion: to the amount of solar radiation on the surface of the earth although is very big, but can flow density is very low. Therefore, in the use of solar energy, want to get a certain switching power, often require area is quite a collection and conversion equipment, cost is higher.

low efficiency and high cost: the development level of the solar energy utilization, some aspects is feasible in theory, technology is mature. But some solar energy utilization device, because of low efficiency, high cost, in general, economy also can't compete with conventional energy.

all in all, solar energy is a energy, and renewable energy, for human beings to create a new life form, make the social and the modern age when human beings enter a save energy and reduce pollution. 【 The above content by solar insecticidal lamp price arrange release for you 】