Roof mounted solar systems can serve multiple purposes

1. The solar module of the roof can play the role of "regulating" the indoor temperature. It can cool down and keep warm in summer and winter respectively. In addition, the photovoltaic array absorbs solar energy and converts it into electric energy, which greatly reduces the comprehensive outdoor temperature, reduces the heat gain of the wall and the cooling load of the indoor air conditioner.

2. The rooftop photovoltaic power station generates green energy. It is the application of solar power generation and will not pollute the environment. Solar energy is the cleanest and free, and there are no ecological side effects in the development and utilization process. It is a kind of renewable energy and inexhaustible.

3. It is directly connected to the grid on the user side, saving a lot of cost and time

4. Does not occupy land. Photovoltaic arrays are generally installed on idle roofs or exterior walls without additional land occupation, which is especially important for urban buildings where land is expensive.