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What is monocrystalline solar panel ?

Release:2017/02/17 Company News

Monocrystalline Solar Panel is assembled in a board by many monocrystalline solar cells according with some arrangement mode. Its conversion rate is about 17%, the most efficiency can be up to 24%, which is the most efficiency among all of solar pv modules, but its fabrication cost is high, so that it is still can’t be widespread utilization. As monocrystalline silicon is sealed by tempered glass and waterproof resin, it is very sturdy and durability, its lifespan is about 15 years, the most is 25 years.

Solar is a huge energy, it release about 3.8*10MW per second by lighting radiation, one of 2.2 billion power energy radiate to earth, after being reflected and absorbed by atmosphere, still remain 70% to the earth surface. Even so, the solar energy that the earth receive is up to 1.8*10KW*h a year. With the decreasing of fossil fuel, human have the sense to make more developing. The utilization of solar includes photothermal conversion and photovoltaic conversion. Solar power generation system is a kind of new-style energy. Generalized solar energy is the source of many energy, such as wind energy, chemical energy, water energy, etc.
Presently, Crystalline silicon (polycrystalline and monocrystalline silicon) is the main photovoltaic material, and its market occupation is above 90%, and it will be the main materials of solar pv modules in a future long time. The production technology of polycrystalline silicon is mastered by 10 factories of three Countries which is the United States, Japan, Germany for a long time, which cause the blockade on techniques and corner on the market. The main request of polycrystalline silicon is main from semiconductor and solar cells.

The photovoltaic conversion of monocrystalline solar panel is about 17%, the most efficiency can reach 24%. The fabrication craftsmanship of polycrystalline is silimiar with monocrystalline, but the photovoltaic conversion of polycrystalline solar cell is lower than monocrystalline, it is about 15%. Its fabrication cost is lower than monocrystalline, simply fabrication materials, saving electric consumption, the total cost is low, so it have been getting development. Moreover, the lifespan of polycrystalline solar cell is shorter than monocrystalline. The monocrystalline solar cell is more better from the cost performance. Moncrystalline solar cells appeared inside a new-style thin film solar cells in 1976, its fabrication method is completed difference with monocrystalline and polycrystalline solar cells, its process of craftsmanship is extremely simplified, it just consume a little of silicon materials, low electric consumption, its merit is that it still can generate electricity under weak sunlight. But the big disadvantage of moncrystalline solar cell is the low photovoltaic conversion, its conversion rate is about 10% under present international advanced technology, and its stability is not good, its conversion rate is decreasing with long time use.
In terms of measure condition, as the output power of solar pv modules rely on solar radiation and temperature of cells, etc, therefore, the measure of solar pv module is under standard condition (STC): Air mass is 1.5, solar radiation is 1000W/m^2, temperature is 25℃. The maximum power that solar panels generator is said as peak power under this STC condition, in many occasion, The peak power of solar modules is measured by solar simulation equipment. The main factors to effect the peak power of solar modules is load impedance, sunlight intensity, temperature and shadow.
With the reduction of fabrication cost, monocrystalline solar panel is gradually developing, and its high performance, it will occupy main market in future.