How to judge whether photovoltaic panels are good or bad? Is photovoltaic power generation a new energy source?

New energy, also known as unconventional energy, refers to various forms of energy other than traditional energy. New energy power generation has a very important feature, that is, no pollution and no damage to the environment. From this aspect, I believe that you can definitely distinguish whether photovoltaics are new energy? What are the efficiency losses of photovoltaic power generation systems? Encyclopedia Knowledge Network will answer them for you one by one.

Contents of this article

1. How to judge whether photovoltaic panels are good or bad

2. Is photovoltaic power generation a new energy source?

3. What are the efficiency losses of photovoltaic power generation systems?

How to tell whether photovoltaic panels are good or bad

Distinguishing the quality of photovoltaic panels:

1. From the raw material point of view, battery components generally include battery cells, EVA, back panels, aluminum alloy frames, and tempered glass. Defects will occur during the lamination process, copper-tin copper bending and tightening; and bubbles will be generated. This proves that residual gaps will still be generated during the 160-degree high-temperature heating and sealing process. Battery cells attach great importance to sealing and anti-oxidation, otherwise they will have a service life of 1-2 years under open air.

2. From the appearance, it can be seen that it is single crystal silicon, amorphous silicon, polycrystalline silicon and other materials.

Is photovoltaic power generation a new energy source?

Photovoltaic power generation is a new energy source. It is different from traditional power generation modes. Photovoltaic power generation is a renewable energy source. New energy power generation has a very important characteristic, that is, it is pollution-free and does not damage the environment. Therefore, photovoltaic power generation should be classified as a new energy source.

New energy, also known as unconventional energy, refers to various forms of energy other than traditional energy. It refers to energy that has just begun to be developed or is being actively researched and is yet to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy. On June 14, 2012, Heilongjiang Province promulgated a regulation stating that the detected resources belong to the state. On August 20, the National Meteorological Administration expressed its support for the nationalization of wind and solar energy.

What are the efficiency losses of photovoltaic power generation systems?

1. Bandgap brightness efficiency loss VOC increases with the increase of Eg, causing efficiency loss of the photovoltaic power generation system.

2. Efficiency loss caused by temperature As the temperature increases, the efficiency of the photovoltaic power generation system decreases.

3. The focus of sunlight on solar cells causes loss of efficiency in the photovoltaic power generation system.

4. Efficiency loss caused by metal grid and light reflection The metal grid lines on the front surface cannot transmit sunlight, causing efficiency loss in the photovoltaic power generation system.