Household solar photovoltaic power stations are small distributed photovoltaic systems, which are generally installed on roofs. But what if you think you can install a photovoltaic power plant as long as you have a roof? That would be a big mistake. Photovoltaic power stations, especially solar racks, should fully consider the actual situation in the installation design, follow the principle of economic applicability, be highly reliable, strong and durable, easy to maintain, and fully consider the influence of geographical and climatic environments.

With many years of practical production experience, Yi Zhao New Energy will tell you how to install a household photovoltaic power station. Remember the following points!

1. Selection of photovoltaic power station installation location

The location of a household photovoltaic power station can generally be chosen on the roof of your home or on an open space. The conditions that need to be considered are the usable area, building structure and load-bearing requirements, ground foundation conditions, meteorological and hydrological conditions, etc. If you choose to install it on your own roof, the roof load-bearing capacity must be greater than 20kg/㎡. In addition, if the beams of the house are made of wood, don’t consider it. The photovoltaic system has a service life of up to 25 years. Wooden beams are easy to rot, so it is recommended not to install them.

2. Selection of grid-connected inverter

Grid-connected inverters are mainly divided into three categories: high-frequency transformer type, low-frequency transformer type and transformerless type. Depending on the system being designed and the specific requirements of the owner, the transformer type is mainly considered from two aspects: safety and efficiency. Household distributed photovoltaic systems are small systems and do not require high technical specifications. When the inverter does not have an isolation transformer, the energy conversion efficiency is higher. Combined with cost and other factors, it is more reasonable to choose the transformerless type.

3. Choose reliable after-sales service

A rooftop photovoltaic power station will continue to generate electricity for no less than 25 years. Whether it is a distributed industrial and commercial rooftop photovoltaic power station of several MW or a household distributed power generation system of several KW, a reliable and complete after-sales service system is particularly important.