280W Polycrystalline Solar Module 280wp
Prostar multi-crystalline silicon solar panels (sometimes called polycrystalline solar panels) are made from polycrystalline solar cells, but polycrystalline solar cells are cheaper to make than monocrystalline cells. To make a polycrystalline ingot, you simply melt a load of silicon and then pour the molten liquid into a big box where it solidifies. This is a lot simpler than growing a monocrystalline ingot on a multi-million dollar crystal growth machine from a tiny seed over days or weeks until you have a beautiful shiny cylinder made of a single crystal of silicon!
Prostar multi-crystalline silicon solar panel 280 watt made by 60 cells, is particularly suitable for utility-scale installations. Thanks to the excellent temperature coefficient, a high yield is guaranteed also at high temperatures.
Advanced encapsulation material with multi-layered sheet laminations to enhance cell performance and provide a long service life. Bypass diodes minimize power drop caused by shade and ensure excellent performance in low-light environments.
To convert this wafer into a solar cell, they have to be processed in almost exactly the same way as monocrystalline wafers, i. e. they are cleaned, textured, diffused and anti-reflection coated before the electrical conductors are printed on.
The only real differences between mono and polycrystalline solar cell are:
1) Polycrystalline solar cells are perfectly square;
2) Polycrystalline solar cells have grain boundaries (clearly visible) which slightly reduce the solar efficiency by making it a bit harder for the electrons to flow.
So does mean a multi-crystalline silicon solar panel 280 watt is inferior to a monocrystalline? Not really, because the multi crystalline cells’ square shape means that when they are laid up into the panel, there is no wasted space. This makes the efficiency of a typical polycrystalline solar panel almost identical to a typical monocrystalline module these days.
Polycrystalline cells were previously thought to be inferior to Monocrystalline because they were slightly less efficient, however, because of the cheaper method by which they can be produced coupled with only slightly lower efficiencies they have become the dominant technology on the residential solar panels market.
Product Features & Benefits:
1. Higher energy yield:
– Outstanding performance at low irradiance
– The 60 high-efficiency cells with 5 busbars decrease ohmic losses and increase the yield
– Maximum energy yield at low NOCT(dirty effect)
– Improved energy production through reduced cell series resistance
– IP67 junction box available long-term weather endurance
2. Increased system reliability:
– Enhanced system performance stability with PID resistant technology
– Tempered 3.2 mm safety glass for optimal mechanical stability and transparency
– Enhanced system reliability in extreme temperature environment with special cell level stress release technology
– Great for solar street light or off-grid applications from marine-related to dry camping
3. Extra value to customers:
– Positive power tolerance up to 5w
– EL tested solar modules; no hot-spot heating guaranteed
– Stronger 40mm robust frame to hold 5400Pa load
– Salt mist, ammonia, and blowing sand resistance apply
– To seaside, farm, and desert environment
– 25 years linear performance warranty
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