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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 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 13,378 panels
Model Power Efficiency Wp/m² Temp Degr. Weight Tech. Standout
STP445S-H48-Nkh+ 445 Wp 22.30% 222.7 -0.290 0.40% 21.5 kg TOPCon Top 17% efficiency
STP440S-H48-Nkh+ 440 Wp 22.00% 220.2 -0.290 0.40% 21.5 kg TOPCon Typical across the board
STP435S-H48-Nkh+ 435 Wp 21.80% 217.7 -0.290 0.40% 21.5 kg TOPCon Typical across the board
STP450S-H48-Nfb+ 450 Wp 22.50% 225.2 -0.290 0.40% 24.0 kg TOPCon Typical across the board
STP445S-H48-Nfb+ 445 Wp 22.30% 222.7 -0.290 0.40% 24.0 kg TOPCon Top 17% efficiency
STP440S-H48-Nfb+ 440 Wp 22.00% 220.2 -0.290 0.40% 21.5 kg TOPCon Typical across the board
STP435S-H48-Nfb+ 435 Wp 21.80% 217.7 -0.290 0.40% 21.5 kg TOPCon Typical across the board
STP430S-H48-Nfb+ 430 Wp 21.50% 215.2 -0.290 0.40% 21.5 kg TOPCon Modest efficiency
STP435S-H48-Nkh 435 Wp 21.80% 217.7 -0.290 0.40% 21.5 kg TOPCon Typical across the board
STP445S-C54/Nshb 445 Wp 22.80% 227.9 -0.290 0.40% 21.0 kg TOPCon Top 1% efficiency
STP440S-C54/Nshb 440 Wp 22.50% 225.3 -0.290 0.40% 21.0 kg TOPCon Space-efficient, top 8%
STP515S-H54-Nkh+ 515 Wp 23.20% 231.6 -0.290 0.40% 23.5 kg TOPCon Light for its class, top 9%
STP510S-H54-Nkh+ 510 Wp 22.90% 229.3 -0.290 0.40% 23.5 kg TOPCon Light for its class, top 13%
STP505S-H54-Nkh+ 505 Wp 22.70% 227.1 -0.290 0.40% 23.5 kg TOPCon Light for its class, top 16%
STP500S-H54-Nkh+ 500 Wp 22.50% 224.8 -0.290 0.40% 23.5 kg TOPCon Light for its class, top 20%
STP495S-H54-Nkh+ 495 Wp 22.30% 222.6 -0.290 0.40% 23.5 kg TOPCon Light for its class, top 25%
STP565S-C72/Pmh+ BI 565 Wp 21.90% 218.7 -0.340 0.45% 32.0 kg TOPCon Weak in heat
STP560S-C72/Pmh+ BI 560 Wp 21.70% 216.8 -0.340 0.45% 32.0 kg TOPCon Weak in heat
STP550S-C72/Pmh+ BI 550 Wp 21.30% 212.9 -0.340 0.45% 32.0 kg TOPCon Modest efficiency
STP545S-C72/Pmh+ BI 545 Wp 21.10% 211.0 -0.340 0.45% 32.0 kg TOPCon Weak in heat
STP435S-C54/Nshm 435 Wp 22.30% 222.8 -0.290 0.40% 21.0 kg TOPCon Space-efficient, top 17%
STP440S-C54/Nshm 440 Wp 22.50% 225.3 -0.290 0.40% 21.0 kg TOPCon Space-efficient, top 8%
STP445S-C54/Nshm 445 Wp 22.80% 227.9 -0.290 0.40% 21.0 kg TOPCon Top 1% efficiency
STP595S-C78/Pmh+ BI 595 Wp 21.30% 212.9 -0.340 0.45% 35.1 kg TOPCon Needs more roof
STP590S-C78/Pmh+ BI 590 Wp 21.10% 211.1 -0.340 0.45% 35.1 kg TOPCon Modest efficiency
STP585S-C78/Pmh+ BI 585 Wp 20.90% 209.3 -0.340 0.45% 35.1 kg TOPCon Modest efficiency
STP560S-C72/Nmh+ BI 560 Wp 21.70% 216.7 -0.320 0.40% 32.8 kg TOPCon Heavy for its class
STP555S-C72/Nmh+ BI 555 Wp 21.50% 214.8 -0.320 0.40% 32.8 kg TOPCon Heavy for its class
STP550S-C72/Nmh+ BI 550 Wp 21.30% 212.8 -0.320 0.40% 32.8 kg TOPCon Needs more roof
STP545S-C72/Nmh+ BI 545 Wp 21.10% 210.9 -0.320 0.40% 32.8 kg TOPCon Heavy for its class
STP660S-D66/Pmh+ BI 660 Wp 21.20% 212.5 -0.340 0.45% 37.5 kg TOPCon Modest efficiency
STP655S-D66/Pmh+ BI 655 Wp 21.10% 210.9 -0.340 0.45% 37.5 kg TOPCon Needs more roof
JKM495-520N-51QL6-BDV-F2-EU (505W) BI 505 Wp 23.36% 233.6 -0.260 0.35% 26.3 kg TOPCon Cool in heat, top 2%
JKM495-520N-51QL6-BDV-F2-EU (510W) BI 510 Wp 23.60% 236.0 -0.260 0.35% 26.3 kg TOPCon Cool in heat, top 2%
TSM-NEG19R.20-635 635 Wp 23.50% 235.1 -0.290 0.40% 30.0 kg TOPCon Space-efficient, top 9%
JAM60D10-330/MB/1500V BI 330 Wp 19.20% 191.9 -0.354 0.50% 22.0 kg PERC Cool in heat, top 15%
JAM60D10-335/MB/1500V BI 335 Wp 19.50% 194.8 -0.354 0.50% 22.0 kg PERC Cool in heat, top 15%
STP650S-D66/Pmh+ BI 650 Wp 20.90% 209.2 -0.340 0.45% 37.5 kg TOPCon Modest efficiency
STP435S-C54/Nshtb+ BI 435 Wp 22.28% 222.8 -0.300 0.40% 21.5 kg TOPCon Space-efficient, top 17%
STP430S-C54/Nshtb+ BI 430 Wp 22.02% 220.2 -0.300 0.40% 21.5 kg TOPCon Typical across the board
AIKO-G660-MCH72Dw BI 660 Wp 24.40% 244.3 -0.260 0.35% 33.5 kg Back Contact Typical across the board
STP425S-C54/Nshtb+ BI 425 Wp 21.76% 217.6 -0.300 0.40% 21.5 kg TOPCon Typical across the board
STP625S-H66-Nsh+ BI 625 Wp 23.10% 231.4 -0.280 0.40% 33.1 kg TOPCon Cool in heat, top 7%
STP605S-H66-Nsh+ BI 605 Wp 22.40% 224.0 -0.290 0.40% 32.4 kg TOPCon Modest efficiency
STP575S-C72/Nsh 575 Wp 22.30% 222.6 -0.300 0.40% 27.5 kg TOPCon Light for its class, top 18%
STP580S-C72/Nsh 580 Wp 22.50% 224.5 -0.300 0.40% 27.5 kg TOPCon Light for its class, top 16%
CS7N-645MB-AG BI 645 Wp 20.80% 207.6 -0.340 0.45% 37.9 kg PERC Needs more roof
CS7N-650MB-AG BI 650 Wp 20.90% 209.2 -0.340 0.45% 37.9 kg PERC Modest efficiency
STP590S-C72/Nsh 590 Wp 22.80% 228.4 -0.300 0.40% 27.5 kg TOPCon Light for its class, top 13%
STP595S-C72/Nsh 595 Wp 23.00% 230.3 -0.300 0.40% 27.5 kg TOPCon Space-efficient, top 7%
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