The article explains that solar energy system materials (glass, metal, etc. account for 85%) can be recycled, but the difficulty and cost of recycling are high. Currently, most waste panels are buried, which may generate a large amount of electronic waste in the future. The European Union has issued a recycling directive, and some companies have innovative recycling technologies. Some waste panels can be refurbished and resold, and recycling is crucial for environmental protection and resource conservation.

The article points out that solar panels are more environmentally friendly than other renewable energy sources, giving five reasons: solar energy resources are infinite and sustainable; Low negative impact on the environment and no harmful pollutant emissions; Can reduce carbon emissions and mitigate climate change; No water is required for operation, saving water resources; There is no noise during work, which will not cause noise pollution and contribute to sustainable development.

The article analyzes the service life and maintenance methods of photovoltaic panels. Its service life is usually 20-35 years, and the material affects its lifespan. After 25-30 years, it may need to be replaced. At this time, the power generation is about 80% of the initial amount, and proper maintenance can extend its use. Regular inspection of metal brackets, photovoltaic parameters, etc. is required for maintenance, and relevant issues should be promptly addressed to ensure normal operation.

The article provides a detailed explanation of the core principle of MPPT solar controller - by detecting the output voltage of the solar panel in real time, tracking the maximum power point (MPP), and charging the battery with the maximum power. Compared with traditional controllers, its theoretical efficiency has increased by 50%, and in reality, it has increased by 20% -30% due to environmental factors. It has better functions and is expected to replace traditional controllers in the future.

The article introduces the MPPT controller for off grid solar energy systems. Solar energy is commonly used in remote areas to replace diesel power generation, but traditional controllers are prone to fail to start due to battery depletion. The new MPPT controller supports dual start of battery and solar energy, and can track the maximum power point of the solar panel in real time. Compared with traditional controllers, it can actually improve charging efficiency by 20% -30% and is suitable for unmanned scenarios.