| Now we have entered the 21st century which means amazing development opportunities as well a serious challenge. The demand to energy is increasing day by day, and the environment pollution created from generating power is worse and worse, it is damaging our living environment, as well as the continue development of the world. In order to change this situation, many countries and scientists have been working decades on finding a none pollution and renewable energy. Up till today, we can surely declaim, we have achieved great development- renewable energy solutions, such as solar energy, wind energy, bio-energy, etc. the solar power (PV power) technology is a kind of renewable energy which has advantages of mature-technology, reliable performance, long lifetime, easy application, no pollution, no noise, and easily be applied in mass production.
The Sun is a huge energy resource, can reflect app. 3.8*1020 MW/sec. energy to the space, including one 2.2billionth to the Earth. So annually the Earth can acquire 1.8*1018 MW energy from the Sun. Solar module is a kind of semi-conductor can directly change solar energy into electronic power. With the composition of mass solar modules (mainly silicone solar modules), we can build up a PV power station, and provide reliable energy to industry, agriculture, telecom and civilian living. Since 1970’s to the beginning of 1990’s, PV station was mainly served to provide non-maintenance power to living power in power shortage /non power supply area, as well as communication, microwave transfer stations, oil pipes and gas pipes cathode protection, navigation aid-lights, etc., and acquired a great success. Since 1990’s, because of the big cost dropping in PV station build up, and more important, the heavy environment pollution created from standard power generation, making the mass application of solar energy into necessary, and becoming one of the effective ways to limit pollution and improve our environment.
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When installing solar modules, it should be guarantee that the modules can receive maximum sunlight. Concerning the sunshine direction change in a day and seasons, we recommend to install the module to the direction of the Equator, that is modules to south when in Northern Hemisphere, and to north when in Southern Hemisphere, normally the reference angel of the modules to the ground latitude ±(50 ~ 100). According to the request of customers, the PV power system can be build up in outdoor and tolerating wind, rain and sun-worn; and providing with continue and table power. When the biggest concern is continue many days raining comes, we recommend should give the system with power balance design, that is designing the PV power system with operation under the worst condition to guarantee the system can work properly in different seasons and different climate situations. |
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