Thin film batteries are the trend.
In fact, the efficiency of thin film batteries has been greatly improved compared to the previous two years, and coupled with their low price, they are now increasingly accepted by homeowners. Photovoltaic power plants are originally located in remote areas, so they do not hesitate to take up more space to compensate for the lack of conversion efficiency.
Although monocrystalline silicon cells are very efficient and silicon raw materials are not rare, they are too difficult to purify and their price remains high. Once the efficiency of thin film cells reaches a range acceptable to homeowners, it remains high. It will be difficult for silicon cells to survive.
What are thin film solar cells?
With the reduction of cost and weight and the improvement of the efficiency of the proElectricity generation, solar power generation is penetrating into various fields, such as agriculture, construction, automobile and even aviation. Hanergy, the world's leading thin-film solar power company, produces a variety of products such as Han tiles, Han walls, Han roads, Han paper, Han bags and Han umbrellas. Users can also install Han tiles on their roofs. thin-film solar power generation pigsties, thin-film vegetable greenhouses, space satellite power generation batteries, shared bicycle power generation batteries
What is the difference between Hanergy thin film energy production and other photovoltaic energy production?
At present, the most common thin-film solar cells in the world include the following types:
1. Organic photovoltaic solar cells:
1. : flexibility;
p>2. Disadvantages: sensitive to water vapor, low conversion efficiency;
3. Conversion efficiency: approximately 8%;
2. Amorphous silicon photovoltaic solar cells:
1. Advantages: flexibility, low cost;
2. Disadvantages: Low conversion efficiency;
3. %-12%;
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3. Copper indium gallium selenide photovoltaic solar cells:
1. Advantages: flexibility, light weight, low cost, low light energy production. , no hot spots
2. Disadvantages: Complex production process;
3. Conversion efficiency: 14%-18%
Cadmium telluride photovoltaic solar cells. :
1. Advantages: Large-scale production, low cost;
2. Disadvantages: stiffness, toxicity
3. 18%;
5. Gallium solar photovoltaic cells:
1. Advantages: flexibility, light weight, high power generation efficiency, low produclight energy, no hot spots
2. Disadvantages: Complex production process;
3. Conversion efficiency: 28%-31%;
Article data source: thin-film solar technology expert Zhongyi Xingye< /p>
Both following differences:
1. Different principles of power generation
Thin film power generation is based on a thin film solar cell. lightweight, thin and flexible chips, integrated into various devices such as Intel (Intel Class Carrier) chips, providing clean electricity. Photovoltaic power generation is a technology that uses the photovoltaic effect at the semiconductor interface to directly convert light. energy into electrical energy
2. Different Uses
Thin film power generation is mainly used for cell phones, iPads, backpacks, tents,clothing, special equipment or solar cars. It can be charged while driving in the sun, eliminating dependence on photovoltaic batteries. Power generation is used for stationary power generation devices, such as solar water heaters.
3. Different application technologies
Thin film power generation uses solar chips to generate power, while photovoltaic power is used. The generation uses the photovoltaic effect of the semiconductor interface to generate energy
Detailed information:
Advantages and disadvantages of the generation of photovoltaic energy
Advantages
Both in the world and in China, conventional energy sources are very limited. China's primary energy reserves are well below the global average, accounting for only about 10% of total global reserves.s.
Solar energy is an inexhaustible source of renewable energy for humanity and is completely clean, safe and relative. reliable and maintenance-free long service life, resource adequacy and potential saving, etc., play an important role in long-term energy strategy.
Compared with commonly used thermal power generation systems, the advantages of photovoltaic power generation are mainly reflected in:
①No risk of depletion
②Safe and reliable, no noise, in addition to the absence of polluting emissions, it is absolutely clean (no pollution);
③It is not limited by the geographical distribution of resources and can take advantage of building roofs, for example, areas without; electricity and areas with complex terrain;
④Can generate electricity and supply electricity on site without consuming fuel or erecting transmission lines;
⑤High quality of energy;
⑥Easy to use users must accept emotionally;
⑦ The construction period is short and the time spent on obtaining energy is short.
Disadvantages
However, the production of solar panels is characterized by high pollution and high energy consumption. In current conditions, it is still possible to produce panels for domestic use, but. large-scale exports are equivalent to polluting China and benefiting the world.
According to statistics, more than 40 kilograms of coal need to be burned to produce a 1mx1.5m solar panel, but even the most inefficient thermal energy A solar power plant in China can still use these coals which produce 130 kilowatt hours of electricity (typically, a 1m x 1.6m solar panel generates over 250 kilowatt hours per year) - this is enough to make a light emitting diode (LED) of 2.2 watts. The bulb glows for 30 years based on a 12-hour workday.
① The energy distribution density of irradiation is small, that is, it occupies a huge area
② The energy obtained is related in the four seasons, day and night, cloudy; and sunny and other weather conditions.
③ At present, compared to thermal power generation, the cost of generators is high.
④The manufacturing process of photovoltaic panels is not environmentally friendly.
Baidu Encyclopedia - Thin film energy production
Baidu Encyclopedia - Photovoltaic energy production