How to choose home photovoltaic power generation equipment?
How to choose home photovoltaic power generation equipment?
21/06/2022Blog
The solar power generation system is not a standardized product. The same configuration may not be suitable for all users. It needs to be designed and configured according to the user's own situation. Many customers know less about this. So for users who are interested in purchasing a solar power generation system, what should be considered before purchasing?
01 environment and shadow of the place of residence
It is recommended to first consider the installation location and installation area ofphotovoltaic modules. Generally speaking, south roofs or roofs facing east and west are more suitable for installation. In addition, families with yards or balconies can also consider installing sun sheds, car sheds or awnings.
Shading is an important factor affecting power generation, and may even lead to no power generation, and damage components over time. According to the technical standard, the components on the winter solstice (with the longest shadow) meet the requirements only if they are not blocked. The reality is that most installers cannot accurately measure shadows, they may not be blocked at the time, and after a few months, there will be shadows that can seriously affect power generation. To judge the installation quality of a power station, just look at whether it is covered in winter.
02 The choice of installer
A photovoltaic power generation system mainly includes photovoltaic modules, inverters and various wires, as well as electricity meters and monitoring devices. Once the equipment is of poor quality, it will not only affect its own electricity safety, but also affect other users. It is recommended that you choose regular, quality-assured photovoltaic modules and related equipment when purchasing to avoid worries.
03 bracket
First, look at the bracket material. Photovoltaic brackets are generally required to be galvanized C-shaped steel or aluminum profiles. If it is angle steel or square, look at the inclination angle of the bracket. Each area has an optimum tilt angle. Above or below this angle power generation will be affected.
Finally, look at the aesthetics of the bracket. High-quality power station, the bracket is installed horizontally and vertically, and the appearance is neat and generous. Power stations with poor construction quality are crooked, and even the components are wavy, which seriously affects power generation.
A good power station, all cables will be wrapped in PVC pipes, and exposed wires are rarely seen. Even if the boards are connected in series, the parts that must be exposed are placed in the C-shaped steel grooves and fastened with cable ties.
05 Photovoltaic connector
This is the least expensive little thing in a power station that has the greatest potential to affect power generation. Photovoltaic connectors have the functions of waterproof, sun protection, and anti-corrosion. The quality is difficult to see with the naked eye, but there is a very simple way to judge whether it is good or bad. Pull the connectors together with force. If the wires fall off or the connectors are tripped, the quality is unqualified.
06 Distribution box
The main function of the photovoltaic distribution box is to protect the power station. There must be isolating switches, lightning protection devices, overvoltage protection and overcurrent protection functions with obvious breakpoints, and one less will reduce the safety of the power station. First of all, it depends on whether the relevant devices are available.
For more information on products for PV system, please feel free to call Slocable at 86-769-22010201. You can also email us at pv@slocable.com.cn.
