How to make a solar power generator? How to do solar power

You only need to buy semiconductor optoelectronic devices (commonly known as solar panels) and connect them, and if you want to save them, prepare a battery, charge them during the day and use them at night.

The practice of solar power generation is: manufacturing solar panels, assembling solar panels, installing photovoltaic cell packs, installing inverters, and connecting transmission lines.

Tools Materials: PV brackets, solar panels, PV cell packs, inverters, wires, power grids.

1. Manufacture of solar panels: Solar panels are the core components that convert solar energy into electrical energy. The manufacturing process of solar panels includes steps such as wafer production, cutting, cleaning, diffusion, spinnering, mulching, etc.

Solar panels are usually made up of multiple cells, each of which is composed of a p-n junction and two electrodes.

2. Assemble the solar panels: assemble the solar panels into a panel group according to the design requirements. Battery panel packs are usually formed by multiple solar panels connected in series or parallel to obtain the required voltage and power.

3. Install the photovoltaic cell pack: install the panel pack on the bracket and place it in a sunny position to obtain sufficient solar radiation.

4. Install the inverter: The direct current generated by the solar panel needs to be converted into alternating current through the inverter and then fed into the grid. Inverters are usually installed indoors for monitoring and maintenance.

5. Connect the transmission line: the electric energy generated is transmitted to the power grid through the transformer step-up and transmission line, and is used by users.

1. The solar power generation system is composed of a solar battery group, a solar controller, and a battery (group). If the output power supply is AC 220V or 110V, an inverter is also required.

2. Solar panels: Solar panels are the core part of the solar power generation system, and they are also the most valuable part of the solar power generation system. Its function is to convert the sun's radiation capacity into electrical energy, or send it to the battery for storage, or push the load to work.

The quality and cost of solar panels will directly determine the quality and cost of the entire system.

3. Solar controller: The function of the solar controller is to control the working state of the whole system, and to play the role of overcharge protection and overdischarge protection for the battery. In places with large temperature differences, qualified controllers should also have the function of temperature compensation.

Other additional functions such as light switches and time switches should be optional on the controller.

4. Battery: generally lead-acid battery, nickel-metal hydride battery, nickel-cadmium battery or lithium battery can also be used in small and micro systems. Its function is to store the electrical energy emitted by the solar panels when there is sunlight and release it when needed.

5. Inverter: In many occasions, it is necessary to provide AC power supply of 220VAC and 110VAC. Since the direct output of solar energy is generally 12VDC, 24VDC, 48VDC.

In order to supply power to 220VAC appliances, it is necessary to convert the DC power generated by the solar power generation system into alternating current, so a DC-AC inverter is required. In some cases, DC-DC inverters are also used when loads with multiple voltages need to be used, such as converting 24VDC to 5VDC (note that this is not a simple step-down).

1. Solar power generation methodThere are two ways of solar power generation, one is the light-heat-electricity conversion mode, and the other is the light-electricity direct conversion mode.

2. The light-heat-electricity conversion mode generates electricity by using the heat energy generated by solar radiation, which is generally converted into the vapor of the working fluid by the solar collector, and then drives the steam turbine to generate electricity. The former process is the light-heat conversion process; The latter process is the thermal-electric conversion process.

3. The light-electricity direct conversion method is to use the photoelectric effect to directly convert solar radiation energy into electrical energy, and the basic device of light-electricity conversion is the solar cell. A solar cell is a device that directly converts sunlight energy into electrical energy due to the photogenerated volt effect, and is a semiconductor photodiode, when sunlight shines on the photodiode, the photodiode will turn the sun's light energy into electrical energy and generate an electric current. When many cells are connected in series or parallel, they can become a solar cell array with relatively large output power.