What is EVA film？
EVA is a thermosetting adhesive film used in the middle of laminated glass. It is a functional film made by adding crosslinking agents, coupling agents, and UV resistant agents to a resin based on ethylene vinyl acetate copolymer.
Many customers find it strange why solar panels with the same appearance have vastly different prices when choosing them? Some solar panels only cost 3 yuan/watt, while others cost nearly 20 yuan/watt. What is the reason for this huge difference?
The parameters of solar panels are provided by the manufacturer under STC (Standard Test Conditions). At STC, the corresponding solar radiation is 1000W/m2, the operating temperature of the battery is 25 ° C, and Am is 1.5.
Solar panels are very durable, and leading brands now offer them a 25-year product warranty. They can also save you thousands of dollars in electricity bills throughout their lifetime, while their upfront costs become very small. However, only by correctly installing solar panels can good results be achieved.
Understanding the grading system
For solar panel manufacturers, they often hear terms like “Tier 1,” “Tier 2,” and “Tier 3.”. Tier ranking is a classification system developed by professional organizations.
Flexible components, also known as lightweight components, can be bent by 30 degrees or even more. Its main materials include polyester, polyimide, PTFE, fluorinated polymers, etc.
Material quality
Most photovoltaic modules that accelerate the degradation of solar panels are caused by LID, PID, and backplane failures. These degradation mechanisms are partially caused by material defects, so it can be concluded that photovoltaic modules with higher quality materials degrade at a slower rate.
Current photovoltaic business model
Self-investment and self-construction
Solar panels are moving towards the forefront of modern technology, which can limit the use of fossil fuels and other harmful energy sources worldwide by converting the sun’s heat energy into usable energy.
Precautions for maintaining photovoltaic systems in snowy weather:
Firstly, to avoid snow and ice from compressing photovoltaic modules, photovoltaic modules should be cleaned immediately after snowfall;