As we all know, the factory roof has always been the favorite of the photovoltaic industry. Using idle factory roofs to build photovoltaic projects can not only reduce energy consumption but also make full use of idle resources, which plays a role in energy conservation and emission reduction. It can bring huge economic and environmental benefits to the factory, which can be described as killing many birds with one stone! So, what are the specific benefits of installing distributed PV on the roof of industrial and commercial enterprises?

First of all, the distributed photovoltaic power station is built on the roof of the enterprise building, and the enterprise can adopt the electricity mode of self-use and surfacing. On the one hand, enterprises preferentially use the electric energy produced by photovoltaic power stations, which reduces the electricity cost in the production process and thus reduces the energy consumption of enterprises. On the other hand, in addition to their own use, enterprises can incorporate excess electricity into the national grid, which not only contributes to social electricity consumption but also gains electricity costs, increasing the competitive advantage of enterprises.

Secondly, the distributed photovoltaic power station is mainly constructed on the roof of the factory building of the enterprise, which revitalizes the fixed assets of the enterprise and exploits the idle resources of the enterprise. Thus, the idle factory roof of the enterprise can be effectively used to enhance industrial efficiency and create economic value.

What's more, photovoltaic power generation is based on solar energy resources. In the process of power generation, zero output of dust, wastewater, waste residue, noise, and other pollution sources can be achieved. It not only contributes to the development of clean energy and the construction of a clean, low-carbon, safe, and efficient energy system for the country but also helps to achieve the goal of "carbon peak, carbon neutral", thus enhancing the brand image and influence of the enterprise.

The basic equipment of distributed photovoltaic power generation system on the factory roof includes photovoltaic modules, photovoltaic supports, a DC confluence box, a DC distribution cabinet, a photovoltaic inverter, transformer, AC distribution cabinet, and other equipment, in addition to the power supply system monitoring device and environmental monitoring device. Its operation mode is that under the condition of solar radiation, the solar cell module array of the photovoltaic power generation system converts the energy output from the solar energy and sends it to the DC distribution cabinet through the DC confluence box. Then the grid-connected inverter converts it into AC power to supply the load of the building itself. The excess or insufficient power is adjusted by connecting to the grid.

Advantages of industrial and commercial rooftops with distributed PV:

1. Make use of idle roofs to revitalize fixed assets to increase corporate income.
2. Save the peak electricity cost for enterprises (peak electricity generation is the most during the day), and the surplus electricity can be sold online.
3. Reduce the temperature inside the factory to increase the cost of working comfort and cooling in summer.
4. It can better fulfill the targets of energy conservation and emission reduction stipulated by the government.
5. Not restricted by the distribution of resources, the advantage of building a roof is safe and reliable, with no noise, and no pollution.
6. The nearby user-side access is adopted to avoid the need for long-distance transportation and avoid the loss of long-distance transmission lines.
7. The solar power generation system has a short construction cycle and takes a short time to obtain energy. The solar array can be added or reduced arbitrarily according to the load increase or decrease to avoid waste.
8. Good investment returns, can run for at least 25 years. It is an ideal clean energy without fuel, low operation cost, and not easy to produce polluting wastes in the process of power generation.