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PERC (Passivated Emitter Rear Contact) - a dielectric layer on the back of the solar cell
This layer on the back of the solar cell helps to reflect light which passes through the solar cell back into the member, so it can generate more free electrons..
Technology passivated emitter and rear cell (PERC) originated with the 1990s, and since then the monocrystalline PERC is becoming increasingly popular due to its high efficiency.
As the largest manufacturer of monocrystalline silicon, LONGi Group is the leading developer PERC-tech single-crystal cells.
On the basis of studies conducted by Fraunhofer ISE CalLab Germany, the photovoltaic conversion efficiency of monocrystalline cells in the PERC has reached 22.71%, which is a new world record for this type of elements.
CHARACTERISTICS STC / NOCT
DC voltage, V 24
voltage at maximum power, in the 39.7 / 36.7
load voltage, V 48.4 / 45.2
Rated power solar battery 370 W
type monocrystalline silicon
short circuit current, A 9.93 / 8.00
current for maximum power A 9.32 / 7.47
Weight 22.5
Dimensions (LxWxH) mm 1956h991h40