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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
Solar-Fabrik Mono S4 Halfcut BC Series White 490W BI 490 Wp 24.00% 240.1 - - 25.0 kg Back Contact Incomplete datasheet
ICMD-108BDE-490 BI 490 Wp 24.00% 240.1 -0.260 0.35% 23.5 kg TOPCon Top 2% efficiency
Hanersun HN18RB-54HT490W BI 490 Wp 24.00% 240.1 -0.260 0.35% 23.5 kg Back Contact Top 24% efficiency
Hanersun HN18RB-54HTB490W BI 490 Wp 24.00% 240.1 -0.260 0.35% 23.5 kg Back Contact Top 24% efficiency
Luxen Solar Energy LNAB-490BA BI 490 Wp 24.01% 240.1 -0.260 0.35% 23.5 kg Back Contact Top 18% efficiency
PVolution PVN490-RL10TCBB BI 490 Wp 24.00% 240.1 -0.260 0.35% 24.5 kg Back Contact Top 24% efficiency
WINAICO WST-490BDX54-A2 BI 490 Wp 24.00% 240.1 -0.260 0.35% 25.0 kg Back Contact Heavy for its class
AIKO-A620-MAH72Dw BI 620 Wp 24.00% 240.0 -0.260 0.35% 32.5 kg Back Contact Heavy for its class
AIKO-A620-MAE72Dw 620 Wp 24.00% 240.0 -0.260 0.35% 31.5 kg Back Contact Top 21% efficiency
AIKO-A-620-MAH72Mw 620 Wp 24.00% 240.0 -0.290 0.35% 28.2 kg Back Contact Weak in heat
AIKO-A620-MAH72Mw 620 Wp 24.00% 240.0 -0.290 0.35% 28.2 kg N-type Top 1% efficiency
Maxeon SPR-MAX7-475 475 Wp 24.00% 239.9 -0.270 0.25% 21.1 kg Back Contact Slow degradation, top 1%
Gamko New Energy GKA182N144S-620W BI 620 Wp 23.99% 239.9 -0.300 - 25.0 kg TOPCon Top 1% efficiency
Gamko New Energy GKA182N144-620 BI 620 Wp 23.99% 239.9 -0.300 0.40% 28.0 kg TOPCon Top 1% efficiency
TWMNF-66HD745 BI 745 Wp 24.00% 239.8 -0.280 0.40% 37.3 kg TOPCon Top 1% efficiency
RSM132-8-745BHDG BI 745 Wp 24.00% 239.8 -0.240 0.30% 37.5 kg HJT Top 1% efficiency
SunEvo Solar SE6-66HBD-745W BI 745 Wp 24.00% 239.8 -0.240 0.30% 37.9 kg HJT Top 1% efficiency
Sunplus 745 BI 745 Wp 24.00% 239.8 -0.300 0.31% 39.0 kg HJT Top 1% efficiency
Gamko New Energy GKA210N132-745 BI 745 Wp 23.98% 239.8 -0.340 0.45% 32.0 kg TOPCon Space-efficient, top 1%
Hanersun HN21N-66HT745W BI 745 Wp 24.00% 239.8 -0.280 0.40% 37.4 kg TOPCon Top 1% efficiency
Jetion JT745SLk(B) BI 745 Wp 24.00% 239.8 -0.240 0.30% 36.4 kg HJT Lightest in its segment
TSM-NEG21C.20Q-745 BI 745 Wp 24.00% 239.8 -0.260 0.35% 38.3 kg TOPCon Top 1% efficiency
Gokin GK-4-78HGBD-770M BI 770 Wp 24.00% 239.7 -0.260 0.35% 38.7 kg Back Contact Top 2% efficiency
AIKO-A770-GRH78Dw BI 770 Wp 24.00% 239.7 -0.260 - 39.8 kg Back Contact Top 2% efficiency
AIKO-A670-MAH78Dw BI 670 Wp 24.00% 239.7 -0.260 0.35% 34.7 kg Back Contact Modest efficiency
HT-SAAE HT60-18X(N)-530W 530 Wp 23.90% 239.4 -0.310 0.40% 23.5 kg TOPCon Top 1% efficiency
JAT60S41-530/LR 530 Wp 23.90% 239.3 -0.260 0.35% 23.5 kg N-type Space-efficient, top 5%
JAT60S40-530/LR 530 Wp 23.90% 239.3 -0.260 0.35% 23.5 kg N-type Space-efficient, top 5%
LR7-60HVH-540M 540 Wp 23.90% 239.3 -0.260 0.35% 25.0 kg N-type Top 5% efficiency
LR7-60HVHL-540M 540 Wp 23.90% 239.3 -0.260 0.35% 16.3 kg Back Contact Lightest in its segment
Gokin GK-5-60HG-530M 530 Wp 23.90% 239.2 -0.260 0.35% 23.3 kg Back Contact Top 2% efficiency
LR7-72HVHF-645M 645 Wp 23.90% 238.8 -0.260 0.35% 28.5 kg N-type Lightest in its segment
CS6.2-66HB-645 BI 645 Wp 23.90% 238.8 -0.240 0.30% 32.8 kg HJT Space-efficient, top 1%
AIKO-G645-MCH72Mw 645 Wp 23.90% 238.8 -0.260 0.35% 31.5 kg N-type Top 2% efficiency
LR7-72HVDF-645M BI 645 Wp 23.90% 238.8 -0.260 0.35% 33.5 kg N-type Top 2% efficiency
LR8-66HVD-645M BI 645 Wp 23.88% 238.8 -0.260 0.35% 33.5 kg Back Contact Typical across the board
TSM-NEG19RC.20-645 BI 645 Wp 23.90% 238.8 -0.290 0.40% 33.0 kg TOPCon Top 1% efficiency
LR7-72HVH-645M 645 Wp 23.90% 238.8 -0.260 0.35% 28.5 kg N-type Lightest in its segment
JAM66D45-645/LB BI 645 Wp 23.90% 238.8 -0.290 0.40% 33.1 kg TOPCon Top 1% efficiency
CHSM66RN(DG)/F-BH-645W BI 645 Wp 23.90% 238.8 -0.290 0.40% 31.6 kg TOPCon Top 1% efficiency
TWMNH-66HD645 BI 645 Wp 23.90% 238.8 -0.280 0.40% 32.2 kg N-type Top 2% efficiency
DAS Solar DAS-DH132NE-645W BI 645 Wp 23.90% 238.8 -0.280 0.40% 31.9 kg TOPCon Top 1% efficiency
LR7-72HVD-645M BI 645 Wp 23.90% 238.8 -0.260 0.35% 33.5 kg N-type Top 2% efficiency
LR8-66HYD-645M BI 645 Wp 23.90% 238.8 -0.260 0.35% 33.5 kg Back Contact Typical across the board
LR7-72HYD-645M BI 645 Wp 23.90% 238.8 -0.260 0.35% 33.5 kg N-type Top 2% efficiency
JKM625-650N-66HL4M-BDV-Z1-EN (645W) BI 645 Wp 23.88% 238.8 -0.290 0.40% 32.4 kg TOPCon Space-efficient, top 1%
AIKO-G645-MCH72Dw BI 645 Wp 23.90% 238.8 -0.260 0.35% 33.5 kg Back Contact Typical across the board
CS6.2-66TB-645 BI 645 Wp 23.90% 238.8 -0.290 0.40% 32.8 kg TOPCon Top 1% efficiency
Huayao HY645-B144DDD BI 645 Wp 23.88% 238.8 -0.260 0.35% 32.5 kg Back Contact Typical across the board
Huayao HY645-B144DSS 645 Wp 23.88% 238.8 -0.260 0.35% 27.6 kg Back Contact Light for its class, top 5%
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