What are the characteristics of solar panels?

- Oct 17, 2018-

Solar panels: solar panels are the core part of the solar power generation system and the most valuable part of the solar power generation system.


The effect is to convert the sun's radiation into electricity, to be stored in storage batteries, or to drive the load.


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


Solar controller: the solar controller is used to control the working state of the whole system and to protect the battery from overcharge and overdischarge.


In places with large temperature difference, qualified controller should also have the function of temperature compensation.Other additional functions such as light switch and time switch shall be optional for the controller.


Batteries: generally lead-acid batteries, small and micro systems can also be used nickel-hydrogen batteries, nickel-cadmium batteries or lithium batteries.

Its purpose is to store the energy generated by the solar panels when there is light and release it when needed.


Inverter: in many cases, 220VAC, 110VAC ac ac ac power supply is required.


As the direct output of solar energy is generally 12VDC, 24VDC and 48VDC.To provide power to 220VAC, DC-AC inverters are needed to convert the DC-AC power generated by the solar system.In some cases, a dc-dc inverter is also used when a load of multiple voltages is required, such as converting 24VDC to 5VDC (note that it is not simply depressurizing).


Solar power is not expensive.The cost of solar power generation will be further reduced as technology advances if the country ACTS decisively to introduce industrial policies that encourage the development of green energy.


His comments sparked curiosity among reporters, who asked experts to discuss what they could do to make solar power as beneficial to humanity and the environment as possible.


Industrial application absorbs research and development costs, said ma shenghong, a researcher at the institute of electrical engineering, Chinese academy of sciences.


A new technology has different application requirements at different stages of development.Compared with other renewable energy power generation technologies, photovoltaic power generation has prominent technical and economic advantages in solving power supply of scattered villages and farmers and households in remote areas, and will play a major role in solving the power supply of 30 million people far away from the power grid in China.

In some special fields, photovoltaic power generation has been rapidly rising, showing "comparative advantages" in many fields, such as space power supply, communication station unattended power supply, pipeline cathodic protection, military field power supply, toys, clocks, street lights, courtyard lights and emerging environmental protection buildings.

Industrial applications can absorb a lot of research costs, thus driving the development of technical research, and finding more suitable materials and cost reduction solutions.


LED (Light Emitting Diode), also known as light-emitting diodes, use solid semiconductor chips as light-emitting materials.


When positive voltage is applied at both ends, the carriers in the semiconductor bond together, releasing excess energy and causing photons to emit visible Light.


High efficiency and energy saving of 1000 hours only consume several degrees of electricity (ordinary 60W incandescent lamp consumes 1 degree of electricity in 17 hours, while ordinary 10W energy saving lamp consumes 1 degree in 100 hours)

Ultra long life semiconductor chip luminescence, no filament, no glass bubble, no shock, not broken, the service life can reach 50,000 hours (the service life of ordinary incandescent lamp is only 1000 hours, and the service life of ordinary energy-saving lamp is only 8000 hours)

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