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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 Resun Solar Longi Solar Suntech Hanersun Gamko New Energy GCL Waaree Vikram Solar ZNShine SunEvo 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 Premier Energies SunLink TCL Zhonghuan Hyundai First Solar VDS Renewable SpolarPV Recom Boviet Solar PVolution Sun Earth AUSTA ENERGY REC SunKean Isola New Energy Sunket New Energy Rarlon PV Tech Solitek Adani Solar Silfab Renewsys Axitec Gokin Hounen Solar Solarwatt WINAICO Solar-Fabrik Just Solar RedSolar Exiom Tata Power Solar Lina Energy FuturaSun G-STAR Maxeon Ocean Solar CSUN Selfa Aptos Solar IBC Solar SP Enerji 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 Solarever 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 Peimar Solar Power Vietnam YS Solar Zonergy ENCOR AKCOME KDM Kingdom Solar Kingdom Easun Power LS Solar MWG ASM AU Optronics Growatt RMCIP Tescom Solar Top Solar Wanze Energy
Active 300 Wp and up Found 13,554 panels
Model Power Efficiency Wp/m² Temp Degr. Weight Tech. Standout
SRP-450-BMB-BG BI 450 Wp 20.79% 207.9 -0.340 0.45% 27.3 kg PERC Heavy for its class
SRP-450-BMB-HV 450 Wp 20.79% 207.9 -0.340 0.70% 22.3 kg PERC Fast degradation
Gamko New Energy GKA182M120 450W BI 450 Wp 20.78% 207.9 -0.360 - 21.0 kg PERC Light for its class, top 5%
JS182MHC120-450 450 Wp 20.79% 207.9 -0.340 - 23.0 kg PERC Degradation not published
Vespa Solar Enerji VSP450T-M10-120H BI 450 Wp 20.79% 207.9 -0.340 0.45% 24.0 kg PERC Slow degradation, top 11%
JS Solar JS182MHC120-450 450 Wp 20.79% 207.9 -0.340 0.55% 23.0 kg - Fast degradation
Gamko New Energy GKA182M120-450 BI 450 Wp 20.78% 207.9 -0.360 0.46% 21.0 kg PERC Light for its class, top 5%
Techwise Solar TW-450HT 450 Wp 20.79% 207.9 -0.350 0.55% 22.5 kg PERC Light for its class, top 18%
CSUN CSUN450-120M 450 Wp 20.85% 207.9 -0.350 0.55% 24.2 kg PERC Typical across the board
REC REC590AA Pro MG BI 590 Wp 20.80% 207.9 -0.240 0.25% 36.8 kg HJT Heavy for its class
JAM66D30-495/MB/1500V BI 495 Wp 20.80% 207.9 -0.350 0.45% 29.0 kg PERC Slow degradation, top 11%
S-Energy SL65-66MAJ-495Z 495 Wp 20.79% 207.9 -0.350 0.55% 27.0 kg PERC Typical across the board
RSM120-6-355BHDG BI 355 Wp 20.80% 207.8 -0.240 0.30% 35.0 kg HJT Heavy for its class
Viessmann M390WG 390 Wp 20.80% 207.8 -0.340 - 20.5 kg PERC Top 5% efficiency
Bi-55-535 BI 535 Wp 20.78% 207.8 -0.350 0.55% 32.5 kg PERC Heavy for its class
Bi-57-535 BI 535 Wp 20.78% 207.8 -0.350 0.55% 27.5 kg PERC Typical across the board
WSMD-535 535 Wp 20.78% 207.8 -0.350 0.55% 27.5 kg PERC Typical across the board
WSMDi-415 415 Wp 20.78% 207.8 -0.365 0.55% 22.0 kg PERC Weak in heat
Q-SUN Solar QNM182-HS450-60 450 Wp 20.70% 207.8 -0.370 0.55% 24.5 kg PERC Weak in heat
Hanersun HN18-60H450W 450 Wp 20.77% 207.8 -0.350 0.55% 24.0 kg PERC Typical across the board
Hanersun HN18-60HT450W BI 450 Wp 20.77% 207.8 -0.350 0.45% 26.5 kg PERC Slow degradation, top 11%
AmoSolar AS450M10-120 450 Wp 20.78% 207.8 -0.350 0.55% 23.0 kg PERC Typical across the board
Sunlike Solar LNVK-450M 450 Wp 20.78% 207.8 -0.360 0.53% 23.0 kg - Weak in heat
Gamko New Energy GKA210M400W (1/2*4*20) BI 400 Wp 23.00% 207.7 - - 18.0 kg TOPCon Incomplete datasheet
Q.PEAK DUO XL-G11S.3 / BFG 580 BI 580 Wp 20.80% 207.7 -0.340 0.45% 34.9 kg - Heavy for its class
Boviet Solar BVM7610M-450-H-HC-BF-DG BI 450 Wp 20.60% 207.8 -0.350 0.55% 27.8 kg PERC Heavy for its class
MD-108BD-405W BI 405 Wp 20.77% 207.7 -0.350 - 23.5 kg PERC Degradation not published
MD-108BS-405W BI 405 Wp 20.77% 207.7 -0.350 - 20.3 kg PERC Degradation not published
AE MD-108E-405 405 Wp 20.77% 207.7 -0.350 - 20.3 kg PERC Degradation not published
AE MD-108 395W-415W (405W class) 405 Wp 20.77% 207.7 -0.350 - 20.3 kg PERC Degradation not published
AE MD-108E 405 405 Wp 20.77% 207.7 -0.350 0.55% 20.3 kg PERC Light for its class, top 21%
AE MD-108-405 405 Wp 20.77% 207.7 -0.350 0.55% 20.3 kg PERC Light for its class, top 21%
AE MD-108BD 405W BI 405 Wp 20.77% 207.7 -0.350 0.55% 23.5 kg PERC Heavy for its class
AE MD-108BS 405 BI 405 Wp 20.77% 207.7 -0.350 0.55% 20.3 kg PERC Light for its class, top 21%
Philadelphia Solar PS-M108(HC)-405W 405 Wp 20.80% 207.7 -0.300 0.55% 20.5 kg PERC Cool in heat, top 3%
Philadelphia Solar PS-M108(HCBF)-405W BI 405 Wp 20.80% 207.7 -0.350 0.50% 20.5 kg PERC Slow degradation, top 22%
MD-108-405 405 Wp 20.77% 207.7 -0.350 - 20.3 kg PERC Degradation not published
MD-108BD-405 BI 405 Wp 20.77% 207.7 -0.350 0.55% 23.5 kg PERC Heavy for its class
MD-108E-405 405 Wp 20.77% 207.7 -0.350 0.55% 20.3 kg PERC Light for its class, top 21%
TSM-DE09R-415 415 Wp 20.80% 207.7 -0.340 0.55% 21.8 kg PERC Cool in heat, top 24%
TSM-DE09R.08-415 415 Wp 20.80% 207.7 -0.340 0.55% 21.8 kg PERC Cool in heat, top 24%
TSM-DE09R.05-415 415 Wp 20.80% 207.7 -0.340 0.55% 21.8 kg PERC Cool in heat, top 24%
TSM-NEG9RC.27-415 BI 415 Wp 20.80% 207.7 -0.290 0.40% 21.0 kg TOPCon Modest efficiency
TSM-415NEG9RC.27 BI 415 Wp 20.80% 207.7 -0.290 0.40% 21.0 kg - Cool in heat, top 11%
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
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