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Panels with the longest warranty

Ranked by performance warranty length - the guarantee on output, which is the longer of the two terms and the one that is usually meant by "25 years". All rankings

Manufacturer
All AE Solar Jinko Solar JA Solar DAH Solar Trina Solar Canadian Solar Longi Solar Suntech Hanersun Gamko New Energy Resun Solar GCL Waaree ZNShine SunEvo Solar Vikram Solar Yingli Sunova Horay Solar Phono Solar Emmvee Techwise Solar Seraphim Heckert Solar Risen Luxen Solar Energy Astronergy DMEGC Solar N Plus Goldi Solar AIKO Talesun MY Solar JS Solar Sunlike Solar EGing PV Jolywood Huasun Huayao LEDVANCE Runergy Tongwei Luxor Solar Leapton BYD Renesola TPL Solar HT-SAAE Q-SUN Solar VSUN Hiwatt Solar Shinson Technology Philadelphia Solar DAS Solar Jetion HY SOLAR Heliene S-Energy Q-Cells Solarspace Sunpro Power AmoSolar Ulica Solar PolyCrown Solar Tech SunLink SpolarPV TCL Zhonghuan Hyundai First Solar VDS Renewable Recom Boviet Solar PVolution Sun Earth AUSTA ENERGY REC SunKean Premier Energies Isola New Energy Sunket New Energy Rarlon PV Tech Solitek Adani Solar Silfab Renewsys Axitec Gokin Hounen Solar Solarwatt Solar-Fabrik Just Solar RedSolar Tata Power Solar Lina Energy FuturaSun G-STAR Maxeon Ocean Solar CSUN Selfa Aptos Solar IBC Solar SP Enerji Exiom Neo Solar Power New East Solar Einnova Solarline Motech Amerisolar Solaria LinkSol Panasonic LG Meyer Burger Mission Solar Hansol Kensol Powitt Solar Runtech China Bruk-Bet Lu'an Solar Sharp Daxieworld Twinsel Electronic Technology Weran Solar Haitai Solar CW Enerji Mysolar USA Renew Photovoltaics Centro Energy ECODELTA Fellow Energy GL Solar Avaada Bisol Lexron Sunplus Viessmann ET Solar Jinergy Loom Solar Sonnex Energie TN Solar Vespa Solar Enerji Kyocera Navitas Solar Clelo Tech Depozit Solar Gintech HD Solar KIOTO Solar Reliance New Energy TommaTech BECSA Bauer Solar Becquer DualSun Runda Solar SOMI Sunman VEDA Solar AEET Anern Energy Beny New Energy Corab Elege Electronic Jshine Solar Technology KB Solar MSolar Mogen Solar Solar Power Vietnam YS Solar Zonergy ENCOR AKCOME KDM Kingdom Solar Kingdom Peimar Easun Power LS Solar MWG ASM AU Optronics Growatt RMCIP Tescom Solar Top Solar Wanze Energy
Active 300 Wp and up Found 13,438 panels
Model Power Efficiency Wp/m² Temp Degr. Weight Tech. Standout
Bi-11-380 BI 380 Wp 19.02% 190.2 -0.370 0.70% 28.0 kg PERC Heavy for its class
Talesun TP7F78M-580W 580 Wp 20.70% 207.5 -0.350 0.55% 31.5 kg PERC Modest efficiency
Talesun TP7F78M-585W 585 Wp 20.90% 209.3 -0.350 0.55% 31.5 kg PERC Needs more roof
Talesun TP7F78M-590W 590 Wp 21.10% 211.1 -0.350 0.55% 31.5 kg PERC Typical across the board
Talesun TP7F78M-595W 595 Wp 21.30% 212.9 -0.350 0.55% 31.5 kg PERC Typical across the board
WS-345 345 Wp 17.32% 173.3 -0.386 0.70% 21.5 kg - Typical across the board
WS-350 350 Wp 17.57% 175.8 -0.386 0.70% 21.5 kg - Modest efficiency
WSM-330 330 Wp 19.81% 198.2 -0.370 0.70% 19.0 kg PERC Fast degradation
WS-325 325 Wp 16.32% 163.2 -0.386 0.70% 21.5 kg - Modest efficiency
WS-340 340 Wp 17.07% 170.8 -0.386 0.70% 21.5 kg - Typical across the board
WSMD-380 380 Wp 18.88% 188.8 -0.370 0.65% 23.5 kg PERC Modest efficiency
WSMD-385 385 Wp 19.13% 191.3 -0.370 0.65% 23.5 kg PERC Weak in heat
WSD-385 385 Wp 17.71% 177.1 -0.380 0.70% 23.5 kg PERC Modest efficiency
WSD-390 390 Wp 17.94% 179.4 -0.380 0.70% 23.5 kg PERC Needs more roof
WSD-395 395 Wp 18.17% 181.7 -0.380 0.70% 23.5 kg PERC Modest efficiency
WSD-400 400 Wp 18.40% 184.0 -0.380 0.70% 23.5 kg PERC Modest efficiency
Bi-25-390 BI 390 Wp 19.05% 190.5 -0.370 0.70% 28.0 kg PERC Heavy for its class
Bi-25-395 BI 395 Wp 19.29% 192.9 -0.370 0.70% 28.0 kg PERC Heavy for its class
Bi-25-400 BI 400 Wp 19.54% 195.4 -0.370 0.70% 28.0 kg PERC Heavy for its class
Bi-25-405 BI 405 Wp 19.78% 197.8 -0.370 0.70% 28.0 kg PERC Heavy for its class
Bi-27-380 BI 380 Wp 18.56% 185.6 -0.370 0.65% 29.0 kg PERC Heavy for its class
Bi-27-385 BI 385 Wp 18.81% 188.1 -0.370 0.65% 29.0 kg PERC Heavy for its class
WSM-390 390 Wp 19.58% 195.9 -0.370 0.70% 21.5 kg PERC Fast degradation
ZXM7-UH108-425/N 425 Wp 21.76% 217.6 -0.300 0.50% 20.5 kg TOPCon Fast degradation
ZXM7-UH108-430/N 430 Wp 22.02% 220.2 -0.300 0.50% 20.5 kg TOPCon Fast degradation
ZXM7-UH108-435/N 435 Wp 22.28% 222.8 -0.300 0.50% 20.5 kg TOPCon Fast degradation
ZXM7-UH108-440/N 440 Wp 22.53% 225.3 -0.300 0.50% 20.5 kg TOPCon Top 7% efficiency
WS-330 330 Wp 16.57% 165.7 -0.386 0.70% 21.5 kg - Modest efficiency
WS-335 335 Wp 16.82% 168.3 -0.386 0.70% 21.5 kg - Modest efficiency
WSD-325 325 Wp 16.14% 161.4 -0.386 0.70% 23.5 kg PERC Modest efficiency
WSD-330 330 Wp 16.39% 163.9 -0.386 0.70% 23.5 kg PERC Modest efficiency
WSD-335 335 Wp 16.64% 166.4 -0.386 0.70% 23.5 kg PERC Modest efficiency
WSD-340 340 Wp 16.89% 168.9 -0.386 0.70% 23.5 kg PERC Needs more roof
WSD-345 345 Wp 17.14% 171.4 -0.386 0.70% 23.5 kg PERC Needs more roof
WSD-350 350 Wp 17.39% 173.9 -0.386 0.70% 23.5 kg PERC Modest efficiency
Bi-27-390 BI 390 Wp 19.05% 190.5 -0.370 0.65% 29.0 kg PERC Heavy for its class
Bi-27-395 BI 395 Wp 19.29% 192.9 -0.370 0.65% 29.0 kg PERC Heavy for its class
Bi-27-400 BI 400 Wp 19.54% 195.4 -0.370 0.65% 29.0 kg PERC Heavy for its class
Bi-17-380 BI 380 Wp 18.60% 186.0 -0.370 0.65% 25.5 kg PERC Modest efficiency
Bi-17-385 BI 385 Wp 18.84% 188.4 -0.370 0.65% 25.5 kg PERC Heavy for its class
Bi-17-390 BI 390 Wp 19.09% 190.9 -0.370 0.65% 25.5 kg PERC Heavy for its class
Bi-17-395 BI 395 Wp 19.33% 193.3 -0.370 0.65% 25.5 kg PERC Heavy for its class
Bi-17-400 BI 400 Wp 19.58% 195.8 -0.370 0.65% 25.5 kg PERC Heavy for its class
WSMD-390 390 Wp 19.37% 193.7 -0.370 0.65% 23.5 kg PERC Weak in heat
WSMD-395 395 Wp 19.62% 196.2 -0.370 0.65% 23.5 kg PERC Weak in heat
WSMD-400 400 Wp 19.87% 198.7 -0.370 0.65% 23.5 kg PERC Fast degradation
WSM-385 385 Wp 19.33% 193.4 -0.370 0.70% 21.5 kg PERC Fast degradation
Bi-11-385 BI 385 Wp 19.27% 192.7 -0.370 0.70% 28.0 kg PERC Heavy for its class
Bi-11-390 BI 390 Wp 19.52% 195.2 -0.370 0.70% 28.0 kg PERC Heavy for its class
Bi-11-395 BI 395 Wp 19.77% 197.7 -0.370 0.70% 28.0 kg PERC Heavy for its class
Colour key Strong - top 25% of segment Typical - middle 50% Weak - bottom 25%
Reading this table

Every number is ranked

Colour and bar show where a value sits inside that panel's own segment - its cell technology at its power class - not across the whole database.

Standout says why it matters

One phrase per row, generated from whichever metric is furthest from its segment median.

A dash means no data

The manufacturer did not publish it. We never estimate a missing value - the amber triangle marks those rows.

Technologies

TOPCon HJT PERC N-type