1. What is a solar battery?
A simple understanding is a device that can convert solar energy into electrical energy. Traditional thermal power generation is increasingly limited due to limited resources and polluted environment if a constant flow of solar power can be used. to produce electricity, it will have a great impact on the entire human race. The most essential material of crystalline silicon solar cells is silicon. The component of sand is silicon dioxide. After oxygen is removed from the sand, silicon ranks second in the earth's crust and is rich in silicon. a material that can convert solar energy into electrical energy. But there is a conversion efficiency problem: not all absorbed solar energy is converted into electrical energy. The current conversion efficiency of polycrystalline solar cells is 18.6%.Energy. All other light energy is used less than. The reason why solar energy attracts attention lies in its infinite resources, non-polluting and environmentally friendly characteristics. With these two characteristics, the world will pay more and more attention to it in the future.
2. The solar cell industrial chain is mature
Since 2018, solar energy has become a very mature industrial chain, from silicon material → silicon ingot OR silicon rod → silicon wafer → battery wafer → Components → Photovoltaic system → Photovoltaic recycling
3. The increase in photovoltaic investment and photovoltaic care for the elderly
More and more household photovoltaics are put into production, including self-sufficiency. , and surplus power grid mode is not only useless. You pay the electricity bill and you can comeDre excess electricity for cash. Domestic photovoltaics is a new investment channel. Generally, home photovoltaic installations require an initial investment of 20,000 to 40,000 yuan. Since they can produce electricity continuously for 25 years, there are subsidies for demolition, which can be seen as another form of retirement security.
4. Improving the efficiency of thin-film solar cells
Thin-film cells have a wider range of application scenarios than crystalline silicon cells due to their ability to bend and bend. deformability, particularly in the photovoltaic field. building-integrated applications. The efficiency of copper, indium, and gallium thin-film cells, amorphous silicon thin-film cells, and perovskite solar cells is steadily increasing. The latest efficiencyreported conversion efficiency of perovskite solar cells reached 17.9%, which is very close to the 18.6% conversion efficiency of polycrystalline cells. silicon.
5. Rich application scenarios
Photovoltaic roof
Fishing and photovoltaic supplementation
Photovoltaic shelter
Photovoltaic building
6. Large photovoltaic companies
JinkoSolar——No. 1 in the world in terms of shipments for three consecutive years;
Trina Solar——The most advanced enterprise in photovoltaic technology;
Dongfang Huansheng——the leader in shingle module technology;
GCL Group——the polycrystalline giant;
LONGi——Mono giant.
Photovoltaic enterprises became popular once in 2004. At that time, it gave birth to several richest men, such as Peng Xiaofeng of Jiangxi Saiwei, Shi Zhengrong of Wuxi Suntech, Miao Liansheng of Yingli Group, etc. their activity in the moduleses made of crystalline silicon, as the power generation efficiency of thin-film batteries increases and there are more application scenarios, a future explosion of thin-film batteries can be expected.