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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
TSM-415NEG9RC.27 BI 415 Wp 20.80% 207.7 -0.290 0.40% 21.0 kg - Cool in heat, top 12%
Goldi Solar GS10-M156-WF-580 580 Wp 20.70% 207.7 -0.340 0.55% 31.5 kg PERC Modest efficiency
GCL-M10/72H-B 545W 545 Wp 20.80% 207.7 -0.360 - 27.6 kg BIPV Weak in heat
GCL-M10/72GDF-B-545 BI 545 Wp 20.80% 207.7 -0.350 0.45% 33.2 kg PERC Heavy for its class
GCL-M10/72H-B 545 545 Wp 20.80% 207.7 -0.360 0.55% 27.6 kg PERC Weak in heat
GCL-M10/72H-545B 545 Wp 20.80% 207.7 -0.360 0.55% 27.6 kg PERC Weak in heat
Sunlike Solar LNVT-495MD BI 495 Wp 20.77% 207.7 -0.360 0.53% 28.5 kg - Weak in heat
Gamko New Energy GKA210M360W BI 360 Wp 23.00% 207.7 - - 16.2 kg PERC Incomplete datasheet
Bruk-Bet PEM.WB-410 410 Wp 20.77% 207.7 -0.324 0.64% 21.5 kg PERC Fast degradation
Emmvee E405HCBT108 BI 405 Wp 20.76% 207.6 -0.350 0.55% 20.0 kg PERC Light for its class, top 12%
Emmvee E405HCMW108 405 Wp 20.76% 207.6 -0.350 0.55% 20.0 kg PERC Light for its class, top 12%
Emmvee E405HCBG108 BI 405 Wp 20.76% 207.6 -0.350 0.45% 22.0 kg PERC Slow degradation, top 9%
CS7N-645MS 645 Wp 20.80% 207.6 -0.340 0.55% 33.9 kg PERC Needs more roof
TSM-DEG21C.20-645 BI 645 Wp 20.80% 207.6 -0.340 0.45% 38.3 kg PERC Needs more roof
CS7N-645MB-AG BI 645 Wp 20.80% 207.6 -0.340 0.45% 37.9 kg PERC Needs more roof
YL645DF66 f/2 BI 645 Wp 20.80% 207.6 -0.340 0.45% 38.4 kg PERC Heavy for its class
YL645D-45f 1/2 645 Wp 20.80% 207.6 -0.340 0.55% 34.0 kg PERC Needs more roof
ZXM8-TP132-645W 645 Wp 20.76% 207.6 -0.340 0.55% 33.5 kg PERC Modest efficiency
ZXM8-TPLD132-645 645 Wp 20.76% 207.6 -0.340 0.45% 38.5 kg PERC Heavy for its class
ZXM8-TPLDD132-645 BI 645 Wp 20.76% 207.6 -0.340 0.45% 38.5 kg PERC Heavy for its class
BYD MSBK-33 645 BI 645 Wp 20.76% 207.6 -0.328 0.50% 38.7 kg PERC Cool in heat, top 4%
AmoSolar AS645G12-132 645 Wp 20.76% 207.6 -0.340 0.55% 33.0 kg PERC Modest efficiency
AmoSolar AS645G12-120 BI 645 Wp 20.70% 207.6 -0.340 0.50% 38.7 kg PERC Modest efficiency
Solarspace SS9-66HD-645M BI 645 Wp 20.76% 207.6 -0.330 0.45% 37.5 kg PERC Cool in heat, top 6%
VSUN CSUN645-132M 645 Wp 20.76% 207.6 -0.350 0.55% 34.5 kg - Modest efficiency
Runergy SS9-66HD-645M BI 645 Wp 20.76% 207.6 -0.330 0.45% 37.5 kg PERC Cool in heat, top 6%
RS645~665S9B-132 (645W) 645 Wp 20.80% 207.6 -0.354 - 33.0 kg - Needs more roof
ZXM8-TPLD132-645W 645 Wp 20.76% 207.6 -0.340 0.45% 38.5 kg PERC Heavy for its class
ZXM8-TP132-645 645 Wp 20.76% 207.6 -0.340 0.55% 33.5 kg PERC Modest efficiency
CSUN CSUN645-132M 645 Wp 20.76% 207.6 -0.350 0.55% 34.5 kg PERC Modest efficiency
RS645S9B-132 645 Wp 20.80% 207.6 -0.354 0.54% 33.0 kg - Needs more roof
Amerisolar AS-8M132-HC-645W 645 Wp 20.76% 207.6 -0.340 0.60% 34.0 kg PERC Fast degradation
SRP-645-BMC-BG BI 645 Wp 20.76% 207.6 -0.340 0.45% 38.5 kg PERC Heavy for its class
SRP-645-BMC-HV 645 Wp 20.92% 207.6 -0.340 0.55% 32.2 kg PERC Needs more roof
Gamko New Energy GKA210M380W (1/2*4*19) BI 380 Wp 23.00% 207.6 - - 17.1 kg TOPCon Incomplete datasheet
JAM72D10-425/TB/1500V BI 425 Wp 20.80% 207.6 -0.310 0.50% 25.0 kg N-type Fast degradation
RedSolar CETC-405M(L)/108 405 Wp 20.76% 207.6 -0.350 0.55% 11.4 kg PERC Light for its class, top 3%
Heliene 156HC M10 SL Bifacial - 580W class BI 580 Wp 20.80% 207.6 -0.340 0.50% 31.0 kg PERC Needs more roof
Heliene 156HC-580 M10 SL BIFACIAL BI 580 Wp 20.80% 207.6 -0.340 0.50% 31.0 kg PERC Needs more roof
STP580S-C78/Pmhg BI 580 Wp 20.80% 207.6 -0.360 0.55% 31.1 kg - Weak in heat
STP580S-C78/Vmh 580 Wp 20.80% 207.6 -0.360 0.55% 31.1 kg - Weak in heat
PS380M4-20/UH 380 Wp 20.76% 207.6 -0.340 0.55% 20.0 kg PERC Top 5% efficiency
Gamko New Energy GKA210M108-530W BI 530 Wp 20.75% 207.5 -0.340 - 25.5 kg PERC Light for its class, top 5%
Gamko New Energy GKA210M108-530 BI 530 Wp 20.75% 207.5 -0.340 0.45% 25.5 kg PERC Light for its class, top 5%
Sunlike Solar LNST-415M 415 Wp 20.75% 207.5 -0.360 0.53% 21.0 kg PERC Weak in heat
JAM78S30-580/MR 580 Wp 20.70% 207.5 -0.350 0.55% 30.5 kg PERC Modest efficiency
JAM78D30-580/MB/1500V BI 580 Wp 20.70% 207.5 -0.350 0.45% 33.4 kg PERC Modest efficiency
Talesun TP7F78M-580W 580 Wp 20.70% 207.5 -0.350 0.55% 31.5 kg PERC Modest efficiency
Talesun TD7G78M-580W BI 580 Wp 20.70% 207.5 -0.350 0.45% 35.0 kg PERC Heavy for its class
TS-BW78(580) BI 580 Wp 20.70% 207.5 -0.330 0.55% 29.0 kg PERC Cool in heat, 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