Excuse me, is there a feasibility study report on installing solar street lamps in Fengdian Township?

At present, the best one is Henan Huangchuan Limin Technology Company.

The solar panel is the core part of the solar power generation system, and its function is to convert the light energy of the sun into electric energy, and then output direct current to the storage battery. Solar panel is one of the most important components in solar power generation system, and its conversion rate and service life are important factors to determine whether solar cells have use value. Module design: The module is designed according to IEC:1215:1993 standard, and consists of 36 or 72 polysilicon solar cells connected in series 12V and 24V modules. The module can be used in various household photovoltaic systems, independent photovoltaic power stations and grid-connected photovoltaic power stations.

Solar power generation system is divided into off-grid power generation system, grid-connected power generation system and distributed photovoltaic power generation system:

1, off-grid power generation system. It is mainly composed of solar cell module, controller and storage battery. In order to supply power to AC load, it is necessary to configure AC inverter.

2. Grid-connected power generation system means that the direct current generated by solar cell modules is converted into alternating current meeting the requirements of public power grid through grid-connected inverter, and then directly connected to public power grid. Grid-connected power generation system includes centralized large-scale grid-connected power stations, which are generally state-level power stations. The main feature is that the generated energy is directly transmitted to the power grid, and the power grid uniformly distributes electricity to users. However, this kind of power station has large investment, long construction period, large area and little development. The decentralized small grid-connected power generation system, especially the photovoltaic building integrated power generation system, is the mainstream of grid-connected power generation because of its advantages of small investment, fast construction, small area and strong policy support.

3. Distributed photovoltaic power generation system, also known as distributed power generation or distributed energy supply, refers to configuring a small photovoltaic power supply system at the user site or near the power consumption site to meet the needs of specific users, support the economic operation of the existing distribution network, or meet both requirements.

The basic equipment of distributed photovoltaic power generation system includes photovoltaic cell module, photovoltaic array, DC junction box, DC distribution cabinet, grid-connected inverter, AC distribution cabinet and other equipment, as well as power supply system monitoring device and environmental monitoring device. Its operation mode is that in the case of solar radiation, the solar cell module array of photovoltaic power generation system sends the electric energy converted from solar energy to DC distribution cabinet through DC junction box, which is converted into alternating current by grid-connected inverter to supply the building's own load, and the excess or insufficient electric energy is adjusted by connecting to the power grid.