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PERC 166mm (M6) solar modules are high-efficiency monocrystalline panels (typically 450W–475W for 144-cell layouts) that utilize Passivated Emitter and Rear Cell technology to optimize light absorption. They generally feature 9-busbar (9BB) or half-cut cell designs to reduce electrical resistance, boosting module efficiency up to 21.9%.
Key Specifications & Performance
- Module Power Output: Commonly ranges between 435W and 475W for 144-cell configurations.
- Cell Size: 166mm x 166mm (±0.25mm) M6 monocrystalline, often with rounded corners.
- Efficiency: Up to 21.9% module-level efficiency, according to SunEvo Solar.
- Cell Technology: Monocrystalline PERC, typically with 6BB, 9BB, or multi-busbar designs.
- Temperature Coefficient (Pmax): Typically around -0.36%/°C to -0.38%/°C, according to data sheets on ENF Solar and DS New Energy.
- Dimensions: A common 144-cell half-cut module is approximately 2094 x 1038 x 35 mm.
Advantages and Applications
- High Power Density: The larger 166mm wafer size increases power output compared to older 158.75mm cells.
- Reduced BOS Cost: Higher efficiency allows for fewer modules, lowering balance-of-system (BOS) costs for commercial and utility projects.
- Improved Low-Light Performance: The PERC architecture, often combined with half-cut technology, offers excellent performance in low-light conditions.
- Versatile Use: Suitable for residential rooftops, commercial, and utility-scale installations.
Popular 166mm Module Options
Features 132 half-cut cells (166mm), 20.8% efficiency, and a 25-year warranty.
Uses 166mm wafers with multi-busbar technology, offering up to 21.9% efficiency.
A 144-cell module with a 30-year performance warranty, often used in commercial projects.
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Web results
166mm
Regitec
https://regitecsolar.com › products › solarmodules › perc
Regitec
https://regitecsolar.com › products › solarmodules › perc
PERC 166mm cell. Solar module efficiency up to 21.2%. REGITEC 166mm solar module uses 166mm 9BB solar cells,the increasing of the wafer size optimizes the ...Read more
People also ask
Is a perc solar panel good?
Improved Performance in Low-light and High-heat
A low-light and high-heat environment can be destructive for traditional solar panels, but PERC solar panels excel in these conditions. They even see a 3% increase in efficiency when operated in high-heat and low-light.
A low-light and high-heat environment can be destructive for traditional solar panels, but PERC solar panels excel in these conditions. They even see a 3% increase in efficiency when operated in high-heat and low-light.
PERC Solar Panels - Top Benefits You Must Know - Genus Innovation
Genus Innovation
https://shop.genusinnovation.com › blogs › invertor-ups
Genus Innovation
https://shop.genusinnovation.com › blogs › invertor-ups
What is the lifespan of a PERC solar panel?
around 25+ years
This depends on the grade and type, but PERC panels are in the “medium to high” cost bracket compared to basic mono. Lifespan: Often around 25+ years.Nov 18, 2025
10 Types of Solar Panels in India: Cost, Efficiency & Power
KLK Ventures Private Limited
https://www.klkindia.com › types-of-solar-panels
KLK Ventures Private Limited
https://www.klkindia.com › types-of-solar-panels
Web results
166mm Monocrystalline PERC Solar Cell
DS New Energy
https://www.dsneg.com › ... › P Type Silicon Solar Cell
DS New Energy
https://www.dsneg.com › ... › P Type Silicon Solar Cell
72 pieces of high power 166mm Mono PERC solar cells with power up to 6.12 watt/piece can make solar panels with power up to 440 watt.Read more
PERC Bifacial A Grade 166mm Cell Solar Panels 450w ...
Nuukopower.com
https://www.nuukopower.com › perc-bifacial-a-grade-16...
Nuukopower.com
https://www.nuukopower.com › perc-bifacial-a-grade-16...
Established in 2008,we can customize the professional PERC Bifacial A Grade 166mm Cell Solar Panels 450w 9BB Solar Panel Double Glass according to your ...
PERC 166mm Solar module
SpolarPV
https://www.spolarpv.com › perc-166mm-solar-module
SpolarPV
https://www.spolarpv.com › perc-166mm-solar-module
Customize our PERC 166mm Solar Module with competitive price. We are PERC 166mm Solar Module manufacturer, supplier. SpolarPV offers excellent after-sales ...
New mono-PERC panels with enlarged 166mm cells - Abi Solar
abi-solar.com
https://abi-solar.com › new-mono-perc-panels-with-enla...
abi-solar.com
https://abi-solar.com › new-mono-perc-panels-with-enla...
Jun 7, 2021 — The new PV modules will have dimensions of 1768×1046 mm with an aluminum frame 35 mm thick. Module weight of 20 kg. Deliveries of new models ...Read more
PERC 166mm 9BB | Solar Cell Datasheet
ENF Solar
https://www.enfsolar.com › cell-datasheet
ENF Solar
https://www.enfsolar.com › cell-datasheet
TN Solar Co., Limited Solar Cells Series PERC 166mm 9BB. Detailed profile including pictures, certification details and manufacturer PDF.
High Efficiency PERC Solar Cell 166mm Monocrystalline
sunevosolar.com
https://www.sunevosolar.com › high-efficiency-perc-sol...
sunevosolar.com
https://www.sunevosolar.com › high-efficiency-perc-sol...
PERC technology effectively enhances the light absorption and energy conversion efficiency of solar cells, leading to increased power output.Read more
PERC 166MM Cell |
Jingjiang Alicosolar New Energy Co., Ltd
https://www.alicosolar.com › perc-solar-panels
Jingjiang Alicosolar New Energy Co., Ltd
https://www.alicosolar.com › perc-solar-panels
M6 Mono Half Cell Module ASM6-144-166 435~455W. 670 Watt Solar Panel price is about 0.25-0.35 per watt. Ultra-high power meets 21.6% efficiency.Read more
166mm PERC Half Cult Cells MBB Mono 450W-470W ...
sail solar energy co., ltd
https://www.sailsolarpv.com › Solar Panel
sail solar energy co., ltd
https://www.sailsolarpv.com › Solar Panel
M6 series 166mm solar cells use Passivated Emitter Rear Contact (PERC) technology, it is an advanced mono-crystalline solar cells. solar panels built with PERC ...Read more
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Web results
PNG 435W-455W 166mm Double Glass Bifacial Mono ...
Hefei Pinergy Solar Technology Co., Ltd
https://www.pnsolarpv.com › png-435w-455w-166mm...
Hefei Pinergy Solar Technology Co., Ltd
https://www.pnsolarpv.com › png-435w-455w-166mm...
166mm 144cells monocrystalline perc solar modules, double glass bifacial photovoltaic modules, they are widely used for residential and commercial.Read more