Sun Solar Power

　　Solar energy is energy from the Earth external objects (primarily solar energy), solar energy is huge hydrogen nuclei at ultra-high temperature fusion release, most of the energy needed to mankind directly or indirectly from the sun. We need live coal, oil, natural gas and other fossil fuels because of a variety of plants through photosynthesis solar energy into chemical energy stored in the plants down, and then after a long geological ages formed from buried animals and plants. In addition, hydro, wind, wave energy, ocean current energy, etc. are also coming from the solar energy conversion.

　　Power generation Edit entry

　　Solar energy is energy from the Earth external objects (primarily solar energy), solar energy is huge hydrogen nuclei at ultra-high temperature fusion release, most of the energy needed to mankind directly or indirectly from the sun. We need live coal, oil, natural gas and other fossil fuels because of a variety of plants through photosynthesis solar energy into chemical energy stored in the plants down, and then after a long geological ages formed from buried animals and plants. In addition, hydro, wind, wave energy, ocean current energy, etc. are also coming from the solar energy conversion.

　　Basic introduction

　　Solar energy is energy from the Earth external objects (primarily solar energy), solar energy is huge hydrogen nuclei at ultra-high temperature fusion release, most of the energy needed to mankind directly or indirectly from the sun. We need live coal, oil, natural gas and other fossil fuels because of a variety of plants through photosynthesis solar energy into chemical energy stored in the plants down, and then after a long geological ages formed from buried animals and plants. They are essentially fixed down from ancient biological solar energy. In addition, hydro, wind, wave energy, ocean current energy, etc. are also coming from the solar energy conversion. Now in this area, Anhui East peacekeeping Solar Technology Co., Ltd. is developing relatively well, with excellent R & D and technical support.

　　Generation Type

　　Use of solar power, there are two types, one is the photovoltaic power generation (also known as solar power generation), and the other is solar thermal power generation (also known as solar thermal power).

　　Solar power is the solar energy directly into electrical energy a power generation method. It includes photovoltaic, photochemical generation, power generation and light sensor photobioreactor four forms of power generation, electrochemical photovoltaic power generation in photochemical, photovoltaic and photocatalytic cell battery solution.

　　Solar thermal power generation is the first solar energy into heat, then heat into electricity, it has two conversion mode. One is the direct conversion of solar energy into electrical energy, such as a semiconductor or metal material temperature difference power generation, vacuum devices in the hot electron and ion thermal power generation, AMTEC, and MHD power generation. Another way is to drive the generator to generate electricity through solar thermal heat engines (such as steam turbines), and conventional thermal power generation similar, but not its heat from the fuel, but from solar energy.

　　Development Background

　　Existing energy

　　Disadvantage of thermal power with economic development, social progress, people are raised higher and higher energy demands, find new energy sources has become an urgent task facing humanity. Existing power energy sources are mainly three kinds, namely thermal power, hydropower and nuclear power.

　　Thermal power need to burn coal, oil and other fossil fuels. On the one hand the limited reserves of fossil fuels, the burning fewer, are facing the danger of depletion. It is estimated that the world's oil resources and then put dried up 30 years. On the other hand the burning will emit carbon dioxide and sulfur oxides, thereby causing the greenhouse effect and acid rain, deterioration of the global environment.

　　Shortcoming of hydropower

　　Hydropower to drown large areas of land could lead to ecological destruction, but also a large reservoir collapse once the collapse, the consequences would be disastrous. Moreover, a country's water resources are limited, but also affected the season.

　　Shortcomings of nuclear power

　　Under normal circumstances, although nuclear power is clean, but the event of a nuclear leak, the consequences are also dire. Former Soviet Chernobyl nuclear power plant accident, has made 900 million people have been varying degrees of damage, but this effect does not end.

　　New energy conditions

　　New energy to simultaneously meet two conditions: First-rich inexhaustible; the second is safe, clean, not a threat to humans and the environment. Currently, the new energy found there are two, one is solar energy, the second is the fuel cell. In addition, wind power can also be regarded as a new energy auxiliary. Among them, the best of the new energy is solar energy.

　　Best new energy

　　Solar radiation on Earth is very large, about 40 minutes of solar radiation on Earth, the global human consumption of energy sufficient for one year. We can say that solar energy is truly inexhaustible energy. And solar power is absolutely clean, does not produce pollution. Therefore, reputed to be the ideal solar energy.

　　Access to electricity from solar energy, to realize the need for photoelectric conversion by solar cells. It is the same in the past other power generation principle is completely different, with the following characteristics: ① no danger of depletion; ② absolutely clean (pollution); ③ from distribution of resources to geographical constraints; ④ at the nearest electricity power generation; ⑤ high energy quality; ⑥ user emotionally receptive; ⑦ short acquisition time energy consumption. The downside is: ① irradiation energy distribution of low density, that is, to take up a huge area; ② energy obtained with the seasons, day and night, and confront and other weather conditions. Overall, however, fundamental, as a new energy, solar energy has great advantages, so attention all over the world.

　　To make solar power truly practical level, it is necessary to improve the photoelectric conversion efficiency of solar energy and reduce its cost, the second is to implement solar power with the current power grids.

　　Currently, there are monocrystalline silicon solar cells, polycrystalline silicon, amorphous silicon three. Monocrystalline silicon solar cell conversion efficiency of the highest, has reached more than 20%, but the price is expensive. Amorphous silicon solar cell conversion efficiency lowest, but the price is the cheapest, the most promising for the future general power would be the battery. Once its large component of the photoelectric conversion efficiency of 10%, the price per watt of power generation equipment to $ 1-2, would be sufficient to compete with the current power generation. It estimated that the end of the century we can achieve this level.

　　Of course, special purpose and efficiency of solar cells used in the laboratory is much higher, such as gallium arsenide semiconductor gallium antimonide overlap with the semiconductor solar cell made Boeing developed the photoelectric conversion efficiency up to 36% faster caught up coal-fired power generation efficiency. But because it is too expensive, there can only be limited for use on satellites.

　　Working principle

　　Solar power is the use of the solar cell module directly into electrical energy. Solar module (Solar cells) is the use of semiconductor materials to achieve a solid means of electronic characteristic PV conversion, in the majority of the off-grid areas, the device can be easily implemented as a user-powered lighting and life, some developed countries but also with the regional power grid and network to achieve complementarity. From the perspective of the current civil, mature foreign technology research and industrialization is in its "PV - Construction (lighting) integration" technology, while the main domestic research and production apply without electricity for lighting small household solar power system.

　　1 solar power principle

　　Solar power system includes: a solar cell module (array), controllers, batteries, inverters, user is the lighting load and so on. Among them, the solar cell module and a battery as a power supply system, controller and inverter for the control and protection system, load the system terminals.

　　1.1 Solar Power System

　　Solar cell and battery components of the system power supply unit, so the battery performance directly affects the system performance characteristics.

　　⑴ cell

　　Due to technical and material reasons, single cell generating capacity is very limited, practical solar cell is a single cell through the string, parallel composition