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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
ZXM7-EH144-550 550 Wp 21.28% 212.8 -0.350 0.55% 28.0 kg PERC Typical across the board
JS Solar JS182MHC144-550 550 Wp 21.28% 212.8 -0.350 0.55% 26.5 kg - Light for its class, top 11%
LF 550M10-72H 550 Wp 21.30% 212.8 -0.354 0.71% 28.5 kg PERC Fast degradation
Rarlon PV Tech RL550HM 550 Wp 21.50% 212.8 -0.470 0.73% 27.0 kg PERC Fast degradation
Isola New Energy YH550W-36MH 550 Wp 21.28% 212.8 -0.350 0.31% 27.0 kg - Slow degradation, top 1%
SunEvo Solar SE5-72H-550 550 Wp 21.50% 212.8 -0.360 0.55% 26.9 kg PERC Weak in heat
Gamko New Energy GKA182M144-550 BI 550 Wp 21.28% 212.8 -0.360 0.46% 25.0 kg PERC Lightest in its segment
Techwise Solar TW-550HC BI 550 Wp 21.28% 212.8 -0.350 - 31.0 kg PERC Degradation not published
Amerisolar AS-7M144-HC-550 550 Wp 21.28% 212.8 -0.360 - 29.0 kg PERC Weak in heat
CSUN CSUN550-144M 550 Wp 21.28% 212.8 -0.350 0.55% 29.1 kg PERC Typical across the board
Fellow Energy FE72-18X 550W 550 Wp 21.30% 212.8 -0.326 0.48% 27.4 kg PERC Cool in heat, top 4%
Heliene 144HC-550 M10 SL BIFACIAL BI 550 Wp 21.30% 212.8 -0.340 0.50% 29.2 kg PERC Typical across the board
Vespa Solar Enerji VSP550T-M10-144H BI 550 Wp 21.31% 212.8 -0.340 0.45% 28.2 kg PERC Slow degradation, top 20%
Resun Solar RS8I-M FULL BLACK 550W 550 Wp 21.28% 212.8 -0.390 0.50% 28.6 kg - Weak in heat
Resun Solar RS8I-M HC-550 550 Wp 21.28% 212.8 -0.340 0.50% 28.6 kg - Typical across the board
Resun Solar RS8I-M-DG-550 BI 550 Wp 21.29% 212.8 -0.300 0.50% 31.5 kg TOPCon Needs more roof
Bi-68-665 BI 665 Wp 21.29% 212.8 -0.340 0.55% 39.0 kg PERC Heavy for its class
WSMD-665 665 Wp 21.29% 212.8 -0.340 0.55% 34.5 kg PERC Typical across the board
Just Solar JST360M(120) 360 Wp 21.30% 212.8 -0.290 0.65% 19.0 kg Back Contact Space-efficient, top 3%
Selfa SV108M.2.4-430 430 Wp 21.50% 212.8 -0.300 0.41% 22.0 kg N-type Fast degradation
JAM66S30-505/MR 505 Wp 21.30% 212.8 -0.350 0.55% 25.2 kg PERC Top 4% efficiency
JAM66S30-505/MR/1500V 505 Wp 21.30% 212.8 -0.350 0.55% 26.3 kg PERC Top 4% efficiency
Emmvee E415HCM108-BT 415 Wp 21.28% 212.8 -0.290 0.40% 20.0 kg TOPCon Modest efficiency
Emmvee E415HCMW108-T 415 Wp 21.28% 212.8 -0.290 0.40% 20.0 kg TOPCon Modest efficiency
Goldi Solar GS10-B132-GF-505 BI 505 Wp 21.28% 212.8 -0.320 0.50% 28.0 kg PERC Cool in heat, top 3%
Goldi Solar GS10-B132-TF-505 BI 505 Wp 21.28% 212.8 -0.340 0.55% 26.5 kg PERC Space-efficient, top 4%
Goldi Solar GS10-M132-WF-505 505 Wp 21.28% 212.8 -0.340 0.55% 26.5 kg PERC Space-efficient, top 4%
S-Energy SL85-66BDL-660R BI 660 Wp 21.27% 212.7 -0.340 0.45% 37.9 kg PERC Slow degradation, top 19%
Solaria SPV660-TG12-132BD BI 660 Wp 21.28% 212.7 -0.300 - 38.0 kg TOPCon Modest efficiency
ME-132BD-660 BI 660 Wp 21.27% 212.7 -0.340 - 37.0 kg PERC Degradation not published
AE ME-132 660W 660 Wp 21.27% 212.7 -0.340 - 31.5 kg PERC Lightest in its segment
AE ME-132BD-660 BI 660 Wp 21.27% 212.7 -0.340 0.55% 37.0 kg PERC Typical across the board
AE ME-132-660 660 Wp 21.27% 212.7 -0.340 0.55% 31.5 kg PERC Lightest in its segment
SpolarPV SPV660-TG12-132BD BI 660 Wp 21.28% 212.7 -0.300 0.46% 38.0 kg TOPCon Modest efficiency
ME-132-660 660 Wp 21.27% 212.7 -0.340 0.55% 31.5 kg PERC Lightest in its segment
NS-460MH-120 460 Wp 21.27% 212.7 -0.290 - 21.5 kg N-type Modest efficiency
PolyCrown Solar Tech NS-460MH-120 460 Wp 21.27% 212.7 -0.290 0.42% 21.5 kg N-type Fast degradation
TSM-DE17M(II)-465W 465 Wp 21.30% 212.7 -0.340 0.55% 24.0 kg PERC Top 10% efficiency
Amerisolar AS-6M144-HC-465 465 Wp 21.27% 212.7 -0.360 0.55% 24.0 kg PERC Weak in heat
S-Energy SL65-54TDP-415R BI 415 Wp 21.27% 212.7 -0.300 0.40% 23.5 kg TOPCon Modest efficiency
S-Energy SL65-54TEP-415R BI 415 Wp 21.27% 212.7 -0.300 0.40% 23.5 kg TOPCon Modest efficiency
RedSolar CETC-415M(L)/108 415 Wp 21.27% 212.7 -0.350 0.55% 11.4 kg PERC Light for its class, top 3%
TSM-NEG9R.25-425 425 Wp 21.30% 212.7 -0.290 0.40% 21.0 kg TOPCon Modest efficiency
TSM-DE09R.05-425 425 Wp 21.30% 212.7 -0.340 0.55% 21.8 kg PERC Top 8% efficiency
TSM-DE09R-425 425 Wp 21.30% 212.7 -0.340 0.55% 21.8 kg PERC Top 8% efficiency
TSM-DE09R.08-425 425 Wp 21.30% 212.7 -0.340 0.55% 21.8 kg PERC Top 8% efficiency
EU-JKM425-450N-54HL4R-BDB-G4 (425W class) BI 425 Wp 21.27% 212.7 -0.290 0.40% 24.5 kg N-type Heavy for its class
JKM425N-54HL4R-BDV BI 425 Wp 21.27% 212.7 -0.290 0.40% 22.0 kg N-type Modest efficiency
JKM425N-54HL4R-B 425 Wp 21.27% 212.7 -0.290 0.40% 22.0 kg N-type Modest efficiency
TSM-425NEG9RC.27 BI 425 Wp 21.30% 212.7 -0.290 0.40% 21.0 kg - Cool in heat, top 12%
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