How much do you know about solar panel purchasing skills?
A solar cell is a device that directly converts light energy into electrical energy through the photoelectric effect or photochemical effect. Thin-film solar cells that work with the photoelectric effect are the mainstream, and the diverse Solar System Battery Prices have troubled some people how to choose solar cells. Today, I will briefly introduce the knowledge about the purchase of solar cells. Hope it helps you.
With the wide application of various solar products, solar cells are used more and more widely in our lives. But in the face of all kinds of solar cells on the market, how should we choose?
1. The choice of solar cell battery capacity
Since the input energy of the solar photovoltaic power generation system is extremely unstable, it is generally necessary to configure the battery system to work, and solar lamps are no exception, and the battery must be configured to work. Generally, there are lead-acid batteries, Ni-Cd batteries, and Ni-H batteries. Their capacity selection directly affects the reliability of the system and the price of the system. The selection of battery capacity generally follows the following principles: first, on the premise that it can meet the night lighting, the energy of the solar cell components during the day should be stored as much as possible, and at the same time, it should be able to store the electrical energy that meets the continuous cloudy and rainy night lighting needs. The battery capacity is too small to meet the needs of night lighting, and the battery capacity is too large.
2. The choice of solar cell packaging form
At present, there are two main packaging forms of solar cells, lamination and glue. The lamination process can guarantee the working life of solar cells for more than 25 years. Although glue-bonding was beautiful at the time, the working life of solar cells is only 1 to 2 years. Therefore, the low-power solar lawn light below 1W can use the glue-drop packaging form without excessive life requirements. For the solar lamp with a specified service life, it is recommended to use the laminated packaging form. In addition, there is a silicone gel used to encapsulate solar cells with glue, and it is said that the working life can reach 10 years.
3. Selection of solar cell power
The solar cell output power Wp we call is the output power of the solar cell under the standard sunlight conditions, namely: 101 standard defined by the European Commission, the radiation intensity is 1000W/m2, the air quality is AM1.5, and the battery temperature is 25°C. This condition is about the same as that of the sun around noon on a sunny day. (In the lower reaches of the Yangtze River, it can only be close to this value.) This is not as some people imagined. As long as there is sunlight, there will be rated output power. It can also be used normally under fluorescent lights at night. That is to say, the output power of the solar cell is random. At different times and different places, the output power of the same solar cell is different. Solar light data, between aesthetics and energy saving, most of them choose energy saving. The ideal inclination angle of solar cells in the lower reaches of the Yangtze River is about 40 degrees, and the direction is due south.
Summary: Not only the price of the solar energy system should be considered, but it is also important to choose the right solar energy system equipment supplier. Rekesun solar energy system supplier is your best choice!
