Residential PV generation is a model of using PV power stations as consumer goods, residents buy them at home and install them on the roofs for "spontaneous use, and surplus electricity is connected to the Internet". Photovoltaic power plants can be connected to the grid, and the excess electricity is sold to the national grid, and then used by residents themselves. Industrial and commercial PV power generation refers to suitable installation in enterprises, institutions, schools, hospitals, commercial buildings, office buildings, hotels, shopping malls, industrial plants, and other large-scale electricity consumers. The distributed grid-connected system can be consumed locally, offsetting part of the electricity consumption of online purchases and saving energy. The user's electricity bill, or the full Internet access, is exchanged for income.
