In 2014, the country vigorously supported the photovoltaic power generation industry, and preferential policies were frequently introduced at the national, provincial, and municipal levels to encourage people to build and invest in photovoltaic power generation projects, and to utilize idle roofs in factories and households to construct distributed photovoltaic power stations. Among them, the construction of rooftop photovoltaic power stations in households has low investment and high returns, which has attracted people's attention. Household photovoltaic power stations are rapidly entering our lives.

Definition of Home Photovoltaic Power Station:

Household solar photovoltaic power generation systems are divided into off grid power generation systems and grid connected power generation systems:
1. Off grid rooftop power generation system. It mainly consists of solar cell modules, controllers, batteries, and AC inverters. To supply power to AC loads, an AC inverter household solar power generation system needs to be configured.

2. The grid connected rooftop power generation system refers to the direct current generated by solar modules being converted into alternating current that meets the requirements of the municipal power grid through grid connected inverters and directly connected to the public power grid. The grid connected power generation system has centralized large-scale grid connected power stations, which are generally national level power stations. The main feature is to directly transmit the generated energy to the power grid, and the power grid will uniformly allocate and supply power to users. However, this type of power station requires large investment, long construction period, and occupies a large area, making it difficult to develop and promote. Distributed small-scale grid connected power generation systems, especially rooftop photovoltaic power generation systems, use photovoltaic modules to directly convert solar energy into electrical energy. It is a new type of power generation and energy comprehensive utilization method with broad development prospects. It advocates the principles of nearby power generation, nearby grid connection, nearby conversion, and nearby use. Due to its advantages of small investment, fast construction, small footprint, and strong policy support, it is the mainstream of grid connected power generation.

Note: The number of equipment required varies depending on the installed capacity, and specific equipment configurations need to be calculated and selected according to the actual situation.