The article introduces the parallel and series connection methods of solar panels. Parallel connection requires consistent voltage across all panels, constant voltage, doubled current, and the addition of diodes to prevent reverse current; The series connection requires that the current of each panel is the same, the voltage is superimposed, and the current remains unchanged. A bypass diode should be added to prevent obstruction and damage. The choice depends on the requirements, and following the specifications can safely and effectively increase power.

The article introduces visual inspection methods for ordinary people to distinguish the quality of photovoltaic modules and inverters: photovoltaic modules can be inspected by nameplates (power, tolerance), borders, color differences, printed circuits, and barcodes; The inverter can view the heat sink, wiring terminals, and also pay attention to fan noise. At the same time, it is reminded that you get what you pay for. It is recommended to choose well-known brands and reliable installers.

The article introduces that the maintenance cost of solar energy systems is relatively low, usually less than $100 per year. Maintenance includes cleaning photovoltaic modules, inspecting cables and connectors, replacing batteries, and seasonal maintenance. At the same time, it was mentioned that the system has a long lifespan and high reliability, and the advantages of Demuda's products, 18 years of industry experience, customized services, quality assurance, and high-quality after-sales service were also introduced.

The lifespan of solar inverters is mainly affected by quality, environment, and maintenance, generally reaching more than 10 years, and high-end brands can reach up to 20 years. Provide methods to extend lifespan: choose high-quality brand models, install in suitable environments, regularly clean and maintain, and repair faulty components. At the same time, the advantages of Demuda's related products, 18 years of industry experience, quality assurance, and high-quality after-sales service were mentioned.

The article states that the power generation duration of solar systems primarily depends on equipment quality, maintenance conditions, and installation location. Proper maintenance can ensure power generation for over 25 years. High-quality equipment can withstand harsh weather conditions, while regular cleaning of components, inspection of inverters and controllers, etc., can extend their lifespan. Installing this system can reduce energy costs, decrease reliance on traditional energy sources, and lower carbon footprints, making it a reliable long-term investment.