Wide Application of Solar Panels for Power Generation

1. Development Process

In the 1960s, scientists have already used solar cells in space technology to power communications satellites. At the end of the last century, with the gradual rise of environmental protection concepts, solar panels, a clean and direct form of energy that utilizes solar energy, became popular.

It is not only used in space, but also shows its talents in many fields. Such as: solar garden lights, solar power household systems, independent systems for village power supply, photovoltaic water pumps (drinking water or irrigation), communication power supplies, cathodic protection of oil pipelines, optical cable communication pump station power supplies, seawater desalination systems, road signs in cities and towns, highway road signs, etc.

At the same time, the year-by-year reduction in the manufacturing cost of silicon cells and the increasingly mature technology have also made solar panels power generation more and more widely used as a new energy source.

Around the turn of the century, advanced countries such as Europe and the United States incorporated solar panels power generation into urban power systems and natural village power supply systems in remote areas as a development direction.

2. Principle of Solar Panels Power Generation

Solar panels are composed of multiple solar cells. A solar cell is a device that responds to light and converts light energy into electricity. When light irradiates the surface of the solar cell, part of the photons are absorbed by the silicon material; the energy of the photons is transferred to the silicon atoms, causing the electrons to migrate and become free electrons that accumulate on both sides of the P-N junction to form a potential difference. When an external circuit is connected, under the action of this voltage, a current will flow through the external circuit to produce a certain output power. The essence of this process is: the process of converting photon energy into electrical energy.

3.Main Application Areas

(1) Household solar power supply:

-Small power supplies ranging from 10-5000W, used in remote areas without electricity such as plateaus, islands, pastoral areas, border posts and other military and civilian life needs, such as lighting, televisions, radios, etc.;

-3-30KW solar panels system for home / farm / container house ;

-Photovoltaic water pump: solves the problem of drinking water and irrigation from deep wells in areas without electricity.

(2) Transportation field

Such as navigation beacon lights, traffic / railway signal lights, traffic warning / sign lights, street lights, high-altitude obstacle lights, highway / railway wireless phone booths, unattended road shift power supply, etc.

(3)communication field

-Solar unattended microwave relay stations, optical cable maintenance stations, broadcasting / communication / paging power systems;

-Rural carrier phone solar panels system, small communication machine, soldier GPS power supply, etc.

(4) Petroleum, ocean, and meteorological fields

Petroleum pipelines and reservoir gate cathodic protection solar power systems, oil drilling platform life and emergency power supplies, ocean detection equipment, meteorological / hydro-logical observation equipment, etc.

(5)Home lighting power supply

Such as garden lights, street lights, portable lights, camping lights, mountain climbing lights, fishing lights, black light lights, rubber tapping lights, energy-saving lamps, etc.

(6) Solar power station

10KW-5MW independent solar power stations, wind and solar (diesel) complementary power stations, various large parking plant charging stations, etc.

(7) Matched with automobiles

Solar cars / electric cars, battery charging equipment, car air conditioners, ventilation fans, cold drink boxes, etc.;

(8) Solar hydrogen production and fuel cell regenerative power generation system.

(9) Power supply for seawater desalination equipment.

(10) Satellites, spacecraft, space solar power stations, etc.

4. Outlook of solar panels power generation

Solar building

The combination of solar panels and building systems has formed an industrialization trend. Combining solar panels power generation with building materials will enable future large-scale buildings to achieve power self-sufficiency, which is a major development direction for solar panels power generation.