What are the five components of a solar power system

Jun 15, 2020
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solar panel system

At present, as the population continues to increase, human demand for electric energy is increasing. Geothermal power generation, hydropower generation, wind power generation, and fossil fuel power generation are all exploring energy power generation. So how much do you know about solar power? Do you know the five major pieces of solar power system?

1. Solar panels (solar modules are mainly divided into two types of crystalline silicon and thin-film components on the market) crystalline silicon components are divided into two types of monocrystalline silicon and amorphous silicon);

Solar panel selection: First of all, it is not recommended to use thin-film modules. Why do you say that? Looking at the market share, the market share of thin-film modules is low, so you don’t need to understand it anymore. Secondly, the two types of monocrystalline components and polycrystalline components can basically be selected, because they have a lot of market share and are mature technologies. The warranty for both components is 25 years, and the output power is not less than 80% of the initial power. A must-have item in the contract. If not, please consider changing to another one.

2.Photovoltaic bracket (divided into two categories: fixed bracket and tracking bracket);

Bracket selection: The bracket is generally selected as a fixed bracket, because although the tracking bracket is already mature, it requires maintenance costs in the later stage and the market share is relatively small. Then definitely choose the fixed bracket. The fixed bracket generally uses more hot-dip galvanized C-shaped steel brackets. Pay attention to the method of avoiding on-site welding when installing the bracket. If you must weld it due to factors such as the type of the room, you must do rust prevention. And regularly check to do anti-rust treatment. Bracket life and component life are basically the same.

3. Inverters (there are string inverters, micro inverters, and centralized inverters);

Inverter selection: centralized inverters are not suitable for small distributed systems; the use of micro-inverters is too wasteful; generally choose string inverters, string inverters look at the market share, if you do not understand The market share can be attached to see what brand the installed users use and whether they often have problems such as failures. No specific brand recommendation.

4. Cable;

Photovoltaic cables are mostly used in distributed systems. Photovoltaic cables have different properties such as high temperature resistance, aging resistance, bearing capacity and bending. Compared with ordinary cables, photovoltaic cables are used regardless of DC in the system. The AC cable part does not need to worry about generally in accordance with the requirements of the State Grid otherwise the State Grid will not pre-accept.

5. Distribution box (combiner box)

Distribution box (combination box) selection: Generally, the junction box is matched with different interfaces and power according to different installed capacity. The basic requirements of the small distributed power distribution cabinet are not high, as long as there are self-resetting reclosing, lightning surge, knife gate, circuit breaker, etc. The requirements vary from place to place according to local requirements. Industry and commerce are generally equipped with online quality detectors.

The above are the five major components of the photovoltaic power generation system, each of which plays a vital role. Some resources are limited and some resources can be recycled, but it also requires that each of us usually has a sense of saving resources in life, take the path of sustainable development, love the environment, and protect the earth.