Six factors for photovoltaic cost reduction and efficiency increase
The development of science and technology cannot do without the help of energy. Especially in today's rapid development of science and technology, vigorously developing renewable energy has become a global consensus. The International Renewable Energy Agency (IRENA), in view of the development of renewable energy, believes that the proportion of renewable energy power generation in 2050 will reach 90%. With the improvement of innovative technologies in the photovoltaic industry, photovoltaic cell modules, manufacturing production, scale costs, raw material costs, and management costs have changed to varying degrees. Among them, the power generation efficiency of photovoltaic modules has increased from single digits to more than 20%, and the efficiency of the balance system has also been continuously improved, and the cost of photovoltaic power generation and non-silicon power generation costs have fallen to varying degrees.
Driven by the country’s “carbon peak and carbon neutrality”, how can companies achieve cost reduction, efficiency increase, and efficient use of electricity, help photovoltaics become the main energy source and build a green and smart world?
In the 21st century, the photovoltaic industry has entered the era of parity on the grid. If photovoltaic companies want to further reduce costs and increase efficiency, reduce photovoltaic costs and increase power generation, to make existing photovoltaic power plants more efficient, they need to pay attention to operation and maintenance costs, full-life power generation hours, and high efficiency. Six key points are inverters, high-efficiency components, high-efficiency batteries, and system cost.
Operation and maintenance cost
Intelligent operation and maintenance is conducive to ensuring the comprehensive power generation and reducing the labor cost of the power station, thereby promoting the reduction of the cost of electricity. Hours of full life power generation
With the innovation of technology and process, the comprehensive progress of component and system integration can extend the service life of the system to 30 years or more; on the other hand, the low light response of heterojunction and perovskite will increase the number of effective hours .
High efficiency inverter
High-efficiency inverters made of materials such as silicon carbide (SiC) and gallium nitride (GaN) can reduce the failure rate of passive components, reduce packaging and save installation costs, and can also reduce the size of the inverter heat sink ( Because GaN and SiC have excellent thermal conductivity).
Efficient components
Double-sided double glass components or new packaging materials can effectively increase power generation. High efficiency battery Passivated emitter and back cell technology battery (PERC) Heterojunction battery (HJT) Interdigital Back Contact Battery (IBC) Copper indium gallium selenide battery (CIGS) Perovskite battery (PSC) Silicon-based laminated battery
System cost
Measures such as thinning of the diamond wire, large size, and reducing the power consumption of the drawbar will further reduce the material and energy costs of the components.
The battery efficiency has moved from 20% to 30%. While reducing the cost per watt, it also dilutes the cost of land and non-material costs such as plant construction, support, electrical equipment, and management costs.
In recent years, the state has successively launched parity projects and bidding projects for the photovoltaic industry. Only by reducing costs and increasing efficiency can photovoltaic companies be competitive and stand out among many companies. With the increasing demand for renewable energy in various countries, photovoltaics, as a key factor in the development of new energy, is certain that the photovoltaic industry will continue to rise in the future and become the main way to achieve the "dual carbon" goal.
