Application, installation to income home photovoltaic power plant construction

Capacity is the power generation power of photovoltaic power stations, generally designed according to the buildable roof area of residents. The installation space can be a sloping roof or a flat roof. The flat roof area of 1 square meter can currently generate about 75W of electricity, and the roof load capacity increases by about 35-45 kg. 1 square meter of sloping roof facing south can build about 130W, and the roof bearing capacity increases by about 15 kg. The average resident can build a 3kW-5kW power station.

Commonly used photovoltaic cell modules are divided into monocrystalline silicon and polycrystalline silicon.

The efficiency of polysilicon is second, and the choice of polysilicon with a relatively rich installation area is more cost-effective and the price is relatively low. (Tip: The edge of the monocrystalline silicon cell is generally rounded, and the polycrystalline silicon cell is generally square, don't be deceived by bad merchants on the market!)

Battery components are divided into sizes according to power, and the power of a single component ranges from 10W-300W. The size of the power of a single component is proportional to the area, so when choosing the power, it is also necessary to choose the more appropriate size of the battery component to meet your installation space requirements. The poverty alleviation power stations recently installed by Yiyou Rural Photovoltaic in Heyuan area of Guangdong are all standard 265W polycrystalline silicon photovoltaic modules.

As the interface device between PV cell module and power grid, PV grid-connected inverter converts the DC power of PV cell module into AC power and transmits it to the power grid, which plays a crucial role in PV grid-connected power station.

The main parameters of grid-connected inverters are larger input power, larger input voltage, rated input voltage, starting voltage, MPPT voltage range, and output grid voltage.