Better combination of solar LED street lighting difficult spot

Although in the actual application, solar LED lights never form a real sense of marketing, but in terms of technology, it was a very popular technology in the industry a few years ago, and there are even more products, large-scale demonstration project. But with the LED technology is relatively more rapid progress and price increase, due to defects in the solar LED street lamp design, can not fundamentally solve the inherent, makes the ideal of "competitive advantage" is gradually offset, and LED lighting technology and industrial development are getting better in the more independent the development of solar energy, and is no longer the focus of applied technology research and industry promotion.

Solar energy and LED need each other

The once hot, we can understand, because from a technical point of view of idealism, it is indeed a very attractive technology, its application prospect to us as you can simply use the "perfect" to describe: one-time investment, long life and low maintenance cost of the LED lamp with no cost, no cable laying can be as convenient as the trees by no electricity costs inexhaustible energy and no pollution, and so on geographical restrictions.

In addition to the ideal, in fact, these two hot technologies of solar and semiconductor lighting, each does have hit it off with each other, need each other reason:

The application of solar technology, lighting is not the main field of application, nor can best embody the advantages of the field, but it is a form of energy, lighting the most intuitive and easy to be popular and accepted by cognitive. But in the current level, solar technology as high cost, low energy efficiency problems can not be avoided, especially in lighting applications of monomers, such as not to use the LED technology, and according to the conventional volume ratio design of solar lighting system, electricity is not sufficient for the power consumption of the lamp should tend to face the embarrassment of conversion. In this sense, because of its low energy consumption under the same visual effect, the advantages of DC inverter in the work, LED has become the first choice for the application of solar lighting.

As for the LED technology, it is the ultimate goal to enter the general lighting market, which is the most important breakthrough because of the characteristics of the product. But in the street in the application of high power LED the cost of a few years ago is very expensive, even if there is energy saving, long life, high safety, no pollution and other technical advantages, are not enough to offset the huge disadvantages with conventional lamps in the price, the promotion only based on "Application". Largely sell the "concept" instead of the product, there is no way to go the market route. With the combination of solar energy application seems to be a breakthrough: first, with the combination of solar energy although one-time investment cost is higher, but the concept as "selling point" the meaning is more prominent, and the demonstration and promotion of solar energy itself a piece of market demand; secondly, in combination with solar energy, compared to LED other lighting technology has more advantages, not only

Practical application defects can not be avoided

However, in the actual research and application, the inherent defects of solar LED street lamp can not be avoided and difficult to overcome:

The first is the "energy saving" as the main selling point of the system, which itself has a lot of waste of resources allocation. Because street lighting products have mandatory standards, which include the "power shortage rate" indicators, it does not allow the same as the landscape lighting products can be encountered in rainy days do not work. As a result, from a technical point of view of design, collection and storage of energy must be the most ideal weather conditions (sunshine time is short season, continuous rainy days) as the basis, as a result, in most conditions, most of the energy configuration (solar cells) and the storage device is idle, not only is the cost of the system will remain high, and energy saving to the performance of the system itself and the comprehensive utilization of the theme is draw further apart.

In addition, some seemingly technically simpler problem in practical applications also need to include the use of relatively high cost to solve: first, focus on management issues, if you do not use electrical lines, it is difficult to achieve centralized management is more important on the street, and remote monitoring, but if the allocation of electrical lines, not only increase the cost of products in the meaning of "selling" the weakened; second, solar battery life, battery life and other control components are often lower than life LED life, which brought to the realization of the entire system of long life actually need to solve a lot of problems, but also will have a relatively high maintenance costs; third, because the system uses a DC battery, very easily stolen, so the big problem is anti-theft system. In addition to the general installation of solar cell height is relatively high weight of the problems brought about the improvement of design ability of wind pole will bring the cost increase, etc. these problems are the solar LED lighting system cannot fundamentally solve the problem.

And correspondingly, with LED products continue to reduce costs, the use of electricity for the city LED street price is increasing, the core advantage of combining its life, energy saving etc., in stripping the solar system of high cost, the one-time investment cost has been reduced to the market to be able to accept the application degree. With its advantages in the concept of "energy saving" products and the promotion of relevant government departments, the pace of application has begun to show