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Best panels for small roofs

Ranked by power density in watts per square metre. The figure that matters when the roof, not the budget, is the constraint. 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
JS Solar JS182MHC144-540 540 Wp 20.89% 208.9 -0.350 0.55% 26.5 kg - Light for its class, top 10%
LF 540M10-72H 540 Wp 20.90% 208.9 -0.354 0.71% 28.5 kg PERC Fast degradation
Rarlon PV Tech RL540HM 540 Wp 21.10% 208.9 -0.470 0.73% 27.0 kg PERC Fast degradation
Isola New Energy YH540W-36MH 540 Wp 20.89% 208.9 -0.350 0.31% 27.0 kg - Slow degradation, top 2%
SunEvo Solar SE5-72H-540 540 Wp 21.10% 208.9 -0.360 0.55% 26.9 kg PERC Weak in heat
Gamko New Energy GKA182M144-540 BI 540 Wp 20.89% 208.9 -0.360 0.46% 25.0 kg TOPCon Weak in heat
Techwise Solar TW-540HC BI 540 Wp 20.89% 208.9 -0.350 - 31.0 kg PERC Degradation not published
Amerisolar AS-7M144-HC-540 540 Wp 20.89% 208.9 -0.360 - 29.0 kg PERC Weak in heat
CSUN CSUN540-144M 540 Wp 20.89% 208.9 -0.350 0.55% 29.1 kg PERC Typical across the board
Fellow Energy FE72-18X 540W 540 Wp 20.90% 208.9 -0.326 0.48% 27.4 kg PERC Cool in heat, top 5%
Vespa Solar Enerji VSP540T-M10-144H BI 540 Wp 20.92% 208.9 -0.340 0.45% 28.2 kg PERC Slow degradation, top 20%
Resun Solar RS8I-M HC-540 540 Wp 20.89% 208.9 -0.340 0.50% 28.6 kg - Slow degradation, top 23%
S-Energy SL65-66BAJ-495S 495 Wp 20.90% 208.9 -0.350 0.54% 26.5 kg PERC Typical across the board
GCL-M10/54GDF-B 415W 415 Wp 20.90% 208.8 -0.350 - 25.3 kg PERC Heavy for its class
GCL-M10/54H-B 415W 415 Wp 20.90% 208.8 -0.360 - 21.0 kg PERC Degradation not published
GCL-M10/54GDF-B-415 BI 415 Wp 20.90% 208.8 -0.350 0.45% 25.3 kg PERC Slow degradation, top 9%
GCL-M10/54GDF-415 BI 415 Wp 20.90% 208.8 -0.350 0.45% 25.3 kg BIPV Heavy for its class
GCL-M10/54H-B 415 415 Wp 20.90% 208.8 -0.360 0.55% 21.0 kg PERC Weak in heat
MD-120BD-450 BI 450 Wp 20.88% 208.8 -0.350 0.55% 25.5 kg PERC Heavy for its class
AE MD-120 440W-460W (Pmax 450W class) 450 Wp 20.88% 208.8 -0.350 - 22.5 kg PERC Degradation not published
MD-120BS-450 BI 450 Wp 20.88% 208.8 -0.350 - 22.5 kg PERC Degradation not published
MD-120E-450 450 Wp 20.88% 208.8 -0.350 - 22.5 kg PERC Degradation not published
AE MD-120BS-450 BI 450 Wp 20.88% 208.8 -0.350 0.55% 22.5 kg PERC Light for its class, top 19%
AE MD-120BD-450 BI 450 Wp 20.88% 208.8 -0.350 0.55% 25.5 kg PERC Heavy for its class
AE MD-120 450W 450 Wp 20.88% 208.8 -0.350 0.55% 22.5 kg PERC Light for its class, top 19%
AE MD-120E 450 450 Wp 20.88% 208.8 -0.350 0.55% 22.5 kg PERC Light for its class, top 19%
MD-120-450 450 Wp 20.88% 208.8 -0.350 0.55% 22.5 kg PERC Light for its class, top 19%
Q.PEAK DUO BLK ML-G10.a+ 410 410 Wp 20.90% 208.8 -0.340 0.50% 22.0 kg PERC Slow degradation, top 22%
Q.PEAK DUO BLK ML-G10.D1+/AC-410 410 Wp 20.90% 208.8 -0.340 0.50% 23.8 kg PERC Heavy for its class
Q.PEAK DUO BLK ML-G10+ 410 410 Wp 20.90% 208.8 -0.340 0.50% 22.0 kg - Typical across the board
Silfab SIL-490 HN 490 Wp 20.90% 208.8 -0.360 0.48% 25.8 kg PERC Weak in heat
JAM72D20-465/MB/1500V BI 465 Wp 20.90% 208.8 -0.350 0.45% 27.3 kg PERC Slow degradation, top 11%
TSM-405NEG9.28 405 Wp 20.90% 208.8 -0.300 0.40% 21.5 kg N-type Modest efficiency
Philadelphia Solar PS-M156(HCBF)-GG-585W BI 585 Wp 20.88% 208.8 -0.349 0.45% 35.3 kg PERC Heavy for its class
ZXM7-SHW144-535 535 Wp 20.88% 208.8 -0.350 0.60% 13.5 kg PERC Lightest in its segment
JS Solar JS420M 420 Wp 20.90% 208.7 -0.280 0.70% 22.5 kg PERC Cool in heat, top 1%
Rarlon PV Tech RL420HM-144 420 Wp 20.90% 208.7 -0.390 - 22.5 kg PERC Weak in heat
FuturaSun FU 420 M NEXT Pro 420 Wp 20.87% 208.7 -0.350 0.50% 22.5 kg PERC Slow degradation, top 22%
Resun Solar RS6I-420M 420 Wp 20.87% 208.7 -0.340 0.50% 22.5 kg - Typical across the board
JKM475M-7RL3-TV 475 Wp 20.87% 208.7 -0.350 - 26.5 kg - Degradation not published
STP455S-B72/Pnh+ BI 455 Wp 20.90% 208.7 -0.360 0.45% 28.1 kg - Weak in heat
KB Solar KBS-385 BI 385 Wp 20.90% 208.7 -0.330 - 20.0 kg PERC Space-efficient, top 2%
AE ME-120 590 590 Wp 20.87% 208.7 -0.340 0.55% 29.0 kg PERC Light for its class, top 15%
ME-120BD-590W BI 590 Wp 20.87% 208.7 -0.340 - 35.0 kg PERC Degradation not published
AE ME-120-590 590 Wp 20.87% 208.7 -0.340 0.55% 29.0 kg PERC Light for its class, top 15%
AE590ME-120BD BI 590 Wp 20.87% 208.7 -0.340 0.55% 35.0 kg TOPCon Modest efficiency
ME-120BD-590 BI 590 Wp 20.87% 208.7 -0.340 0.55% 35.0 kg PERC Heavy for its class
Gamko New Energy GKA157M72-405W 405 Wp 20.87% 208.7 -0.360 0.50% 21.0 kg PERC Weak in heat
Gamko New Energy GKA157M72 405W 405 Wp 20.87% 208.7 -0.360 - 21.0 kg PERC Degradation not published
Gamko New Energy GKA157M72-405 405 Wp 20.87% 208.7 -0.360 0.50% 21.0 kg TOPCon Weak in heat
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