What Are The Advantages And Disadvantages Of Solar Street Lights?

With the increasing poverty of the earth's resources, the investment cost of basic energy is climbing higher and higher, and various safety and pollution hazards can be described as ubiquitous, solar street lights as a kind of "inexhaustible, inexhaustible" safety, environmental protection of new energy is more and more attention. At the same time, with the development and progress of solar photovoltaic technology, solar street light products in the environmental protection and energy saving double advantage, solar street light in the field of street lighting development has become more and more perfect. However, in addition to the advantages of solar street lights, there are certain disadvantages, so what are the advantages and disadvantages of solar street lights?

Advantages：

1.Solar street lights use solar photovoltaic cells to provide electricity, solar energy as a green and environmentally friendly new energy, "inexhaustible, inexhaustible". Full use of solar energy resources, to alleviate the tension of conventional energy has a positive significance.　　

2, solar street light installation is simple and convenient, no need to do a lot of foundation works such as laying cables like ordinary street lights, only need to have a base fixed, all the lines and control parts are placed in the light frame, forming a whole.　　

3, the solar street light operation and maintenance costs are low. The whole system is automatically controlled, without human intervention, and almost no maintenance costs are incurred.

Disadvantages：

Dispersion: The total amount of solar radiation reaching the Earth's surface, although large, has a very low density of energy flows. On average, near the Tropic of Cancer, the irradiance of solar radiation is greatest at midday in summer when the weather is clearer, with an average of around 1,000 W of solar energy received over an area of 1 square metre perpendicular to the direction of the sun's rays; if averaged day and night throughout the year, it is only around 200 W. In winter, it is roughly half that, and on cloudy days it is generally only around 1/5. In winter it is roughly half that amount, and on cloudy days it is generally only about 1/5 of that amount, which is a very low density of energy flow. Therefore, when using solar energy, to get a certain conversion power, it often requires a set of collection and conversion equipment with a considerable area and a high cost.　　

Instability: Due to the constraints of natural conditions such as day and night, season, geographical latitude and altitude, as well as random factors such as sunshine, cloudiness, clouds and rain, the solar irradiance reaching a given surface is both intermittent and highly unstable, which makes the large-scale application of solar energy more difficult. In order to make solar energy a continuous and stable source of energy, and thus eventually become an alternative energy source that can compete with conventional energy sources, it is necessary to solve the problem of energy storage well, i.e. to store up as much solar radiation energy as possible during the sunny day for use at night or on rainy days, but energy storage is also one of the weaker links in the use of solar energy.