Best Solar Panels in 2020

If you plan to equip your home or commercial plant with a solar generating system, you have to investigate which solar panels are best on the market today and which manufacturers are most reliable. We have done the research work for you and have compiled a full listing of the top-ranked solar panels, based on a number of characteristics.

See also: Solar Manufacturing News | Top Solar Panel Manufacturers

How to Choose the Best Solar Panels

Installing a solar system at home is becoming a more and more attractive option. Firstly, the prices of photovoltaic modules are getting lower and they are becoming more affordable. Secondly, governments of different countries introduce various incentive programs for solar plant owners. And finally, the climate issues and global warming encourage people to become more environmentally conscious and to switch toward cleaner energy sources. But how to select the proper solar solution for your home so that you could enjoy the benefits without running out of money?

Choosing the best solar panels is quite a challenging task, since there are plenty of panel makers and even more panel models available on the market. On the one hand, such a wide selection is advantageous because you can get an optimal device for your home to fit your budget. But at the same time, one can easily get lost in such a diversity. We have made a thorough investigation of the best products offered by the top solar manufacturers and compared them based on a number of characteristics. When choosing a solar panel, one has to pay attention to the following essential parameters.

1. Power. It is a key characteristic determining a panel’s expensiveness. Power is measured in watts and means how much electricity a panel will produce. Most residential panels have a power output ranging between 200W and 400W. For those who plan to supply most of their electricity needs from solar, we would recommend choosing 300-watt panels. If you content yourself with a smaller part of solar energy, you can consider more affordable products up to 275 watts.

2. Efficiency. This factor shows how much light a panel will convert into electricity suitable for usage. Conversion efficiency of domestic solar panels is 16-22 percent. The most efficient solar panels have a conversion rate of at least 19%, but they are rather pricy. So, if you have a big rooftop, you can think of installing a few less efficient panels. And don’t forget that what you have to check is the efficiency of the whole PV module, not an individual cell.

3. Type. PV panels are commonly manufactured of mono- or polycrystalline silicon. Single-crystal silicon panels have a higher efficiency and durability, and they are designed more smoothly. However, they are more expensive compared to multicrystalline rivals. Another type of modern solar panels is bifacial – with solar cells on both sides for maximum performance. Besides, there are framed and frameless panels. The latter integrate with the roof tiles and do not protrude above the rooftop.

4. Product or materials warranty. This is usually in the range of 10-25 years, which means a manufacturer is obliged to fix or replace a broken product within this period for free. The equipment warranty is your protection from product fault caused by original defects or environmental impact. The top panel makers provide their devices with at least 15 years of warranty.

5. Performance or power warranty. This shows how long a panel is supposed to perform at its initial output and how much power it will produce after the warranty period. Commonly, PV panels are said to operate at 80-90 percent of their original capacity after 25 or 30 years.

6. Temperature coefficient. Photovoltaic panels are best performing under standard test conditions. Every degree C above 25°C causes some performance degradation, and temp coef. shows this decrease in percentage. For the majority of solar products, this coefficient ranges between -0.30% and -0.40% per °C. This means that a panel with a coef. of -0.3 %/°C will perform 3% worse at a temperature of 35°C. The best solar panels have the lowest temp coefficient.

7. Size. In case of a small rooftop area, size of a solar panel is an important parameter. Most photovoltaic panels have an area of about 2m2. However, there are also more compact-sized models available for smaller roofs.

8. Weight. As well as the previous factor, the importance of weight also depends on your roof. If you have any doubts regarding the strength of your rooftop, you have to consider lighter panel models. 

Solar shoppers in the United Kingdom are recommended to check whether the product they would like to install is certified by MCS. Microgeneration Certification Scheme is the UK’s QA scheme for renewable energy and heat generating techs. If you don’t want to compromise the quality for doubtful saving, make sure both the solar module and the installation company you’ve chosen are MCS-approved.

One more piece of advice is to get familiar with reviews and feedback on different solar panel brands through the internet or among your family and friends who already use them. This way, you can learn if there are any issues the panel owners have encountered and whether they are satisfied with a product. As soon as you’ve chosen a panel manufacturer you like, contact a reliable solar company to get to know which device will suit your particular needs.

A common price of a photovoltaic system ranges between six and seven thousand pounds sterling, which includes the installation price. However, there are cheaper solutions priced about £3,000. The price depends on the manufacturer, panel type, efficiency and power, as well as cost of installation. While calculating the up-front costs, take into account the long-term savings on electricity bills. In order to choose the best price, compare offers from at least two or three commercial solar installers. The more quotes you consider, the more you can save on installation. It is reasonable to consider bids from local small solar companies, because large and well-advertised installers usually charge more, which does not mean they propose more qualitative service. So, we’d recommend to get as many quotations as you can to compare prices and equipment options which could optimally suit your home size and electricity demands.

Top Solar Panels in Each Category

Every solar panel shopper is looking for particular parameters, depending on how big your household is and how much solar energy you are planning to produce. Some homeowners see power output or efficiency as their key priorities, while for others compact size or light weight are essential. Below, we provide comparison tables for top products according to key characteristics, as well as some attractive products in the middle range.

The most powerful solar panels

The highest-powered solar panels presented below can be the best choice for those households whose energy needs are really high.

Manufacturer
Solar panel
Maximum power output
Canadian Solar
HiDM CS1U
420W
SunPower
Maxeon 3
400W
LG
NeON® 2
400W
Yingli Solar
PANDA Bifacial 72CL
390W
SunPower
Maxeon 3 BLK
375W
Sharp
NU-AF
370W


The most efficient solar panels

If your main priority is harvesting as much energy as possible during the sunny hours, you should consider the following panels which feature the highest conversion efficiency.

Manufacturer
Solar panel
Maximum efficiency
Canadian Solar
BiKu CS3U-PB-F6
23.8%
SunPower
X-Series X22
22.7%
SunPower
Maxeon 3
22.6%
LG
LG NeON® R ACe
22%
Panasonic
HIT® N340
20.4%
Canadian Solar
HiDM CS1U
20.37%
Sharp
NQ-R Series
20%


Below, we have listed a few other manufacturers who produce some of the most efficient panels (without specifying solar panel models). If you’d like to get more info on particular products, you can visit their official websites.
REC Group – 21.7%
CSUN – 21.2%
Solaria – 20.5%

The best power warranty solar panels 

No solar panel can remain as effective as it originally was forever. However, some products perform better over time than the others. In the table below, we have listed the most long-living panels with the best performance after the warrantied period.

Manufacturer
Solar panel
% of original output after 25 years
SunPower
Maxeon 3 (all models)
92%
LG
LG NeON® R ACe
90.8%
SunPower
E20 Series
90%
LG
NeON® 2 (all models)
89.6%
LG
NeON® R
88.4%
Panasonic
All models
86.2%
Solaria
All models
86%

The smallest solar panels

Those who are not lucky to have a spacy roof area, would be interested to look at the best small solar panels available. In this list, we have collected the most compact-sized panels for home use, without taking into account their performance parameters.

Manufacturer
Solar panel
Size
Sharp
NQ-R Series
1.29sqm
Panasonic
N300
1.54sqm
Sharp
ND-AK
1.63sqm
SunPower
X-Series X22
1.63sqm
SunPower
E20 Series
1.63sqm
TrinaSolar
HONEY PD05
1.64sqm


The lightest solar panels

Some roofs are limited in size, while others can be too fragile to house heavy solar arrays. If your roof is not strong enough, take a look at the top lightweight products offered.

Manufacturer
Solar panel
Weight
Panasonic
N250
15kg
Sharp
NQ-R Series
17kg
LG
NeON®2 (60 cell)
17.1kg
LG
NeON®2 Black
17.1kg
Panasonic
N300
18kg
Panasonic
N330
18.5kg


The lowest temperature coefficient solar panels

The performance of any solar panel is affected by high temperatures. Below, we have listed the manufacturers who make panels with the best temp coef. 

Rank Manufacturer Temperature coefficient
1 Panasonic -0.26
2 REC Group -0.26
3 Solartech Universal -0.26
4 SunPower -0.29
5 LG -0.30



The best solar panels in the middle range

The last comparison table is meant for lower-budget homeowners who would like to choose the decently performing product they can afford. The panels below feature the best mid-range combination of power and efficiency.

Manufacturer
Solar panel
Power/efficiency
Trina Solar
HONEY PD05
285W / 17.4%
Trina Solar
HONEY M PLUS
315W / 19.2%
Panasonic
N300
300W / 19.5%
Project Solar
EVO Ultramax
330W / 19.66%
LG
NeON®2 Black
320W / 18.7%
Canadian Solar
KuPower
300W / 18.05%


The best product warranty solar panels 

The following manufacturers provide the longest warranty for solar panel materials. All the companies listed guarantee their products materials will last for 25 years (compared to standard 10-year warranty).
• LG
• Panasonic
• SunPower
• Solaria
• Silfab
• Q CELLS

The Top Solar Panel Manufacturers and Their Best Products

We have investigated the top global manufacturers of solar panels and the panel models they offer, and have chosen the most attractive options for your consideration. Their price may be higher than average, but the long-term benefits are worth investing in.

LG

LGEfficiency: 18.5-22%
Power output: 320-400W
Types of modules available: monocrystalline, bifacial

The solar technology leader’s products have been awarded with Intersolar highest prize three times. The proprietary Cello Technology used in NeON2 (LG’s most popular) models comprises twelve wires (replacing the standard three busbars) for increased conversion efficiency and reduced losses. As for the bifacial models, they can generate 30 percent more electricity. LG’s both monofacial and bifacial panels are the most efficient among the counterparts. NeON R has the highest efficiency in the product range. NeON2 Black has very thin wires and seems to be totally black from a distance, which makes it more aesthetically looking. Besides, the company guarantees the highest performance within the warranty period – 86% to 88.4% (compared to standard 82% to 84%).

Website:  https://www.lg.com/

LG NeON® R ACe

LG NeON® R ACePower output: 380, 375, and 370 watts
Max efficiency: 22 percent
Temp coefficient: -0.3% per °C
Weight: 19 kilos
Type and number of cells: 60 single-crystal cells
Materials warranty: 25-year
Power warranty: 90.8 percent after 25 years
Size (mm): 1,700 x 1,016 x 40 (1.73 m2)

Website: https://www.lg.com/us/business/solar-panels/lg-lg375a1c-v5

NeON® R

LG NeON® RPower output: 370, 365, 360 watts
Max efficiency: 21.4 percent
Temp coefficient: -0.3% per °C
Weight: 18.5 kilos
Type and number of cells: 60 single-crystal cells
Materials warranty: 25-year
Power warranty: 88.4 percent after 25 years
Size (mm): 1,700 x 1,016 x 40 (1.73 m2) 

Website: https://www.lg.com/us/business/solar/neon-r-series-solar-panels

NeON® 2 (60-cell)

LG NeON® 2 (60-cell)Power output: 340 and 335 watts
Max efficiency: 19.8 percent
Temp coefficient: -0.37% per °C
Weight: 17 kilos
Type and number of cells: 60 single-crystal cells
Materials warranty: 25-year
Power warranty: 89.6 percent after 25 years
Size (mm): 1, 686 x 1,016 x 40 (1.71 m2) 

Website: https://www.lg.com/us/business/solar/neon-2-60-cell-solar-panels

NeON® 2 (72-cell)

LG NeON® 2 (72-cell)Power output: 400 and 395 watts
Max efficiency: 19.3 percent
Temp coefficient: -0.37% per °C
Weight: 20.3 kilos
Type and number of cells: 72 single-crystal cells
Materials warranty: 25-year
Power warranty: 89.6 percent after 25 years
Size (mm): 2,024 x 1,024 x 40 (2.07 m2) 

Website: https://www.lg.com/us/business/solar/neon-2-72-cell-solar-panels

NeON® 2 Black

LG NeON® 2 BlackPower output: 320 watts
Max efficiency: 18.7 percent
Temp coefficient: -0.37% per °C
Weight: 17.1 kilos
Type and number of cells: 60 N-type single-crystal cells
Materials warranty: 25-year
Power warranty: 89.6 percent after 25 years
Size (mm): 1,686 x 1,016 x 40 (1.71 m2) 

Website: https://www.lg.com/us/business/solar/neon-2-black-solar-panels

NeON® 2 Bifacial

LG NeON® 2 BifacialPower output: 395 and 390 watts
Max efficiency: 18.7 percent
Temp coefficient: -0.37% per °C
Weight: 22.1 kilos
Type and number of cells: 72 N-type single-crystal cells
Materials warranty: 25-year
Power warranty: 89.6 percent after 25 years
Size (mm): 2,064 x 1,024 x 40 (2.11 m2) 

Website: https://www.lg.com/us/business/solar/neon-2-bifacial-solar-panels

 

Panasonic

panasonicEfficiency: 19.1-20.4%
Power output: 245-335W
Types of modules available: monocrystalline
Panasonic’s solar panels are based on heterojunction with intrinsic thin-layer tech, reducing energy loss and maximizing efficiency. Among other advantages, the products feature incomparable temp coefficient of only -0.258%/°C. But the main attraction is obviously a reasonable price (around 2.58–2.95 pounds, or 3.37–3.86 USD) compared to other industry leaders. HIT Kuro Black is durable and aesthetically looking, it is all black and has a 44-milimeter frame able of withstanding 5.4kPa snow and wind. The models SLIM and COMPACT are perfect for roofs with limited space. SLIM can be installed either landscape- or portrait-oriented, while COMPACT panels can be placed in multiple rows for increased power generation.

Website: https://www.panasonic.com/

HIT® N340

Panasonic HIT® N340Power output: 340 and 335 watts
Max efficiency: 20.4 percent
Temp coefficient: -0.258% per °C
Weight: 19 kilos
Type of cells: single-crystal cells
Materials warranty: 25-year
Power warranty: 86.2 percent after 25 years
Size (mm): 1,580 x 1,053 x 40 (1.66 m2) 

Website: https://na.panasonic.com/us/energy-solutions/solar/hit-series/n340-hitr-series

N250 SLIM

Panasonic N250 SLIMPower output: 250 and 245 watts
Max efficiency: 19.8 percent
Temp coefficient: -0.258% per °C
Weight: 15 kilos
Type of cells: single-crystal cells
Materials warranty: 25-year
Power warranty: 86.2 percent after 25 years
Size (mm): 1,580 x 798 x 35 (1.26 m2) 

Website: https://eu-solar.panasonic.net/en/solar-panel-vbhn240sj25-vbhn245sj25.htm

N335K BLACK

Panasonic N335K BLACKPower output: 335 watts
Max efficiency: 19.7 percent
Temp coefficient: -0.258% per °C
Weight: 19 kilos
Type and number of cells: 96 single-crystal cells
Materials warranty: 25-year
Power warranty: 86.2 percent after 25 years
Size (mm): 1,590 x 1,053 x 40 (1.67 m2) 

Website: https://eu-solar.panasonic.net/en/2894.htm

N330 POWER

Panasonic N330 POWERPower output: 330 and 325 watts
Max efficiency: 19.7 percent
Temp coefficient: -0.258% per °C
Weight: 18.5 kilos
Type of cells: single-crystal cells
Materials warranty: 25-year
Power warranty: 86.2 percent after 25 years
Size (mm): 1,590 x 1,053 x 35 (1.67 m2) 

Website: https://na.panasonic.com/us/energy-solutions/solar/hit-panels/n330-photovoltaic-module-hitr

N300 COMPACT

Panasonic N300 COMPACTPower output: 300 watts
Max efficiency: 19.5 percent
Temp coefficient: -0.258% per °C
Weight: 18 kilos
Type of cells: single-crystal cells
Materials warranty: 25-year
Power warranty: 86.2 percent after 25 years
Size (mm): 1,053 x 1,463 x 35 (1.54 m2) 

SunPower

sunpowerEfficiency: 18.4-22.7%
Power output: 310-400W
The proprietary Maxeon tech used in SunPower’s products features high conversion efficiency, long life and superior look. The company offers 25 years of performance, materials and service warranty, and guarantees 92-percent performance after the warranty period, while the standard performance warranty ranges between 80 and 85 percent. The best products offered are listed below, starting with the highest efficiency.

Website: https://www.global.sunpower.com/

X-SERIES X22-370

SunPower X-SERIES X22-370Power output: 370 watts
Max efficiency: 22.7 percent
Temp coefficient: -0.29% per °C
Weight: 18.6 kilos
Type and number of cells: 96 single-crystal cells (Maxeon, Gen III)
Materials warranty: 25-year
Power warranty: 92 percent after 25 years
Size (mm): 1,559 x 1,046 x 46 (1.63 m2)

Website: https://us.sunpower.com/solar-resources/sunpower%C2%AE-x-series-residential-dc-x22-370

MAXEON 3

SunPower MAXEON 3Power output: 400, 390, and 370 watts
Max efficiency: 22.6 percent
Temp coefficient: -0.29% per °C
Weight: 19 kilos
Type and number of cells: 104 single-crystal cells (Maxeon, Gen III)
Materials warranty: 25-year
Power warranty: 92 percent after 25 years
Size (mm): 1,690 x 1,046 x 40 (1.77 m2)

Website: https://www.global.sunpower.com/solar-panel-products/sunpower-maxeon-solar-panels

MAXEON 3 BLACK

SunPower MAXEON 3 BLACKPower output: 375 and 355 watts
Max efficiency: 21.2 percent
Temp coefficient: -0.29% per °C
Weight: 19 kilos
Type and number of cells: 104 single-crystal cells (Maxeon, Gen III)
Materials warranty: 25-year
Power warranty: 92 percent after 25 years
Size (mm): 1,690 x 1,046 x 40 (1.77 m2)

Website: https://www.global.sunpower.com/solar-panel-products/sunpower-maxeon-solar-panels

MAXEON 2

SunPower MAXEON 2Power output: 360, 350, and 340 watts
Max efficiency: 20.4 percent
Temp coefficient: -0.35% per °C
Weight: 19 kilos
Type and number of cells: 104 single-crystal cells (Maxeon, Gen III)
Materials warranty: 25-year
Power warranty: 92 percent after 25 years
Size (mm): 1,690 x 1,046 x 40 (1.77 m2)

Website: https://www.global.sunpower.com/solar-panel-products/sunpower-maxeon-solar-panels

P19-320-BLACK

SunPower P19-320-BLACKPower output: 335, 330, 325, 315, and 310 watts
Max efficiency: 19.9 percent
Temp coefficient: -0.37% per °C
Weight: 28.1 kilos
Type of cells: single-crystal cells (Maxeon, Gen III)
Materials warranty: 25-year
Power warranty: 83.6 percent after 25 years
Size (mm): 1,690 x 998 x 40 (1.69 m2)

Website: https://www.sunpower.com.au/sites/default/files/2019-07/sunpower-p19-blk-residential-au_0.pdf

Canadian Solar

Canadian SolarEfficiency: 15.81-23.8%
Power output: 275-420W
Types of modules available: monocrystalline, polycrystalline, bifacial
Canadian Solar is an international company with offices, production facilities and clients worldwide. It is a leader in conversion efficiency – BiKu CS3U-PB-FG is 23.8% efficient. The company offers an extremely wide range of products, consisting of super-powerful 420W HiDM and extremely weatherproof Dymond. Its All-Black model consists of 60 single-crystal cells and is black-finished. Ku series (KuMax, KuPower, KuBlack and KuDymond) is based on Low Internal Current tech, which is next-gen technology both in single- and multicrystalline panels. 

Website: https://www.canadiansolar.com/

Canadian Solar BiKu CS3U-PB-FGBiKu CS3U-PB-FG

Power output: 365, 360, 355, and 350 watts
Max efficiency: 23.8 percent (with 30 percent bifacial extra gain)
Temp coefficient: -0.37% per °C
Weight: 29.3 kilos
Type and number of cells: 144 multicrystalline cells
Materials warranty: 10-year
Power warranty: 83 percent after 30 years
Size (mm): 2,012 x 992 x 5.8 (2 m2) 

Website: https://www.canadiansolar.com/biku/

Canadian Solar HiDM CS1UHiDM CS1U

Power output: 420, 415, 410, 405, and 400 watts
Max efficiency: 20.37 percent
Temp coefficient: -0.37% per °C
Weight: 23.4 kilos
Type of cells: single-crystal cells
Materials warranty: 10-year
Power warranty: 80.7 percent after 25 years
Size (mm): 2,078 x 992 x 35 (2.06 m2) 

Website: https://www.canadiansolar.com/hidm/

Canadian Solar HiDM CS1HHiDM CS1H

Power output: 340, 335, 330, 325, and 320 watts
Max efficiency: 20.16 percent
Temp coefficient: -0.37% per °C
Weight: 19.2 kilos
Type of cells: single-crystal cells
Materials warranty: 10-year
Power warranty: 80.7 percent after 25 years
Size (mm): 2,078 x 992 x 35 (2.06 m2) 

Website: https://www.canadiansolar.com/module/

Canadian Solar HiKu CS3W-PHiKu CS3W-P

Power output: 415, 410, 405, 400, and 395 watts
Max efficiency: 18.79 percent
Temp coefficient: -0.37% per °C
Weight: 24.9 kilos
Type and number of cells: 144 multicrystalline cells
Materials warranty: 10-year
Power warranty: 83.1 percent after 25 years
Size (mm): 2,108 x 1,048 x 40 (2.21 m2) 

Website: https://www.canadiansolar.com/hiku/

 

Canadian Solar DYMOND CS6X

DYMOND CS6X

Power output: 355, 350, 345, 340 watts
Max efficiency: 18.18 percent
Temp coefficient: -0.39% per °C
Weight: 27.5 kilos
Type and number of cells: 72 multicrystalline cells
Materials warranty: 10-year
Power warranty: 83 percent after 25 years
Size (mm): 1,968 x 992 x 5.8 (1.95 m2) 

 

 

KuMax

Canadian Solar KuMaxPower output: 360, 355, and 350 watts
Max efficiency: 18.15 percent
Temp coefficient: -0.37% per °C
Weight: 22.5 kilos
Type and number of cells: 144 multicrystalline cells
Materials warranty: 10-year
Power warranty: 83.1 percent after 25 years
Size (mm): 2,000mm x 992mm x 35mm (1.98 m2) 

Website: https://www.canadiansolar.com/ku/

Canadian Solar KuPower

KuPower

Power output: 300, 295, and 290 watts
Max efficiency: 18.05 percent
Temp coefficient: -0.37% per °C
Weight: 18.5 kilos
Type and number of cells: 120 multicrystalline cells
Materials warranty: 10-year
Power warranty: 83.1 percent after 25 years
Size (mm): 1,675 x 992 x 35 (1.66 m2) 

Canadian Solar DYMOND CS6K

DYMOND CS6K

Power output: 285, 290, and 295 watts
Max efficiency: 17.94 percent
Temp coefficient: -0.39% per °C
Weight: 23 kilos
Type and number of cells: 60 multicrystalline cells
Materials warranty: 10-year
Power warranty: 83 percent after 30 years
Size (mm): 1,658 x 992 x 5.8 (1.64 m2) 

 

 

 

sharpSharp

Efficiency: 16.5-20%
Power output: 258-370W
Types of modules available: monocrystalline, polycrystalline
The product range is rather diverse, offering various efficiency, output, type, design and color options. It includes at least thirteen solar panel models, so you are likely to choose the suitable solution for your needs and preferences. Its NQ-R models are the most efficient in the range and, at the same time, they are light and compact-sized. They allow either landscape or portrait orientation, which makes them flexible to install.

Website: https://global.sharp/

Sharp NQ-R SeriesNQ-R Series

Power output: 258.4 watts
Max efficiency: 20 percent
Temp coefficient: -0.377% per °C
Weight: 17 kilos
Type and number of cells: 48 single-crystal cells
Materials warranty: 10-year
Power warranty: 80 percent after 25 years
Size (mm): 1,318 x 980 x 46 (1.29 m2) 

 

Sharp NU-AF SeriesNU-AF Series

Power output: 370 watts
Max efficiency: 19 percent
Temp coefficient: -0.375% per °C
Weight: 22.5 kilos
Type and number of cells: 72 single-crystal cells
Materials warranty: 10-year
Power warranty: 80 percent after 25 years
Size (mm): 1,960 x 992 x 40 (1.94 m2) 

Website: https://www.sharp.co.uk/cps/rde/xchg/gb/hs.xsl/-/html/product-details-solar-modules.htm?product=NUAF370

 

 

Sharp NU-RD SeriesNU-RD Series

Power output: 300, 295, 290, and 285 watts
Max efficiency: 18.3 percent
Temp coefficient: -0.4% per °C
Weight: 20 kilos
Type and number of cells: 60 single-crystal cells
Materials warranty: 10-year
Power warranty: 80 percent after 25 years
Size (mm): 1,660 x 990 x 50 (1.64 m2) 

Website: https://www.sharp.co.uk/cps/rde/xchg/gb/hs.xsl/-/html/view-all-products-1999.htm

Sharp ND-AK SeriesND-AK Series

Power output: 275, and 270 watts
Max efficiency: 16.9 percent
Temp coefficient: -0.41% per °C
Weight: 18.1 kilos
Type and number of cells: 60 multicrystalline cells
Materials warranty: 10-year
Power warranty: 80 percent after 25 years
Size (mm): 1,640 x 992 x 35 (1.63 m2) 

Website: https://www.sharp.co.uk/cps/rde/xchg/gb/hs.xsl/-/html/view-all-products-1999.htm

Sharp NUSC360NUSC360

Power output: 360 watts
Max efficiency: 18.5 percent
Weight: 26 kilos
Type of cells: single-crystal cells
Materials warranty: 10-year
Power warranty: 25 years
Size (mm): 1,956 x 992 x 40 (1.94 m2)

Website: https://www.sharp.co.uk/cps/rde/xchg/gb/hs.xsl/-/html/view-all-products-1999.htm

 

 

Project SolarProject Solar

Efficiency: 19.66-21%
Power output: 258W to 330W
The company is incomparable in terms of services, communications and after-installation support. That is why, it is scored 4.5 out of 5 by Trustpilot, on account of almost 1.9 thousand feedbacks. Besides, the official website features a user-friendly robot welcoming and following visitors.

Website: https://www.projectsolaruk.com/

Sunpower E20 SeriesSunpower E20 Series

Power output: 327 watts
Max efficiency: 20.1 percent
Temp coefficient: -0.38% per °C
Weight: 18.6 kilos
Type and number of cells: 96 single-crystal cells (Maxeon tech by SunPower)
Materials warranty: 10-year
Power warranty: 90 percent after 25 years
Size (mm): 1,559 x 1,046 x 30 (1.63 m2) 

Website: https://us.sunpower.com/solar-panels-technology/e-series-solar-panels

EVO Ultramax

Power output: 330 watts
Max efficiency: 19.66 percent
Temp coefficient: -0.4% per °C
Weight: 20 kilos
Type and number of cells: 66 single-crystal cells
Materials warranty: unlimited
Power warranty: 85 percent after 25 years
Size (mm): 1,798 x 947 x 35 (1.7 m2) 

SolariaSolaria

Efficiency: 19.4-19.9%
Power output: 350-360W
Solaria’s registered PowerXT technology has smaller inter-cell gaps compared to other PV modules, which results in higher power output and nicer appearance. All panels feature black frames and backsheets, making them look strongly black-colored.

Website: https://www.solaria.com/

Solaria PowerXT® 355R-BDPowerXT® 355R-BD

Power output: 355 and 350 watts
Max efficiency: 19.6 percent
Temp coefficient: -0.39% per °C
Weight: 21 kilos
Type of cells: single-crystal cells
Materials warranty: 25-year
Power warranty: 86 percent after 25 years
Size (mm): 1,621 x 1,116 x 40 (1.81 m2) 

Solaria PowerXT® 360R-PDPowerXT® 360R-PD

Power output: 360 and 355 watts
Max efficiency: 19.9 percent
Temp coefficient: -0.39% per °C
Weight: 21 kilos
Type of cells: single-crystal cells
Materials warranty: 25-year
Power warranty: 86 percent after 25 years
Size (mm): 1,621 x 1,116 x 40 (1.81 m2) 

Trina SolarTrina Solar

Efficiency: 16.5-19.3%
Power output: 270-380W
TS started as a small Chinese company in 1997. Currently, it ships its products to more than a hundred countries worldwide. TS’s panels have already reduced carbon footprint by 32mln tonnes, which is equivalent to nearly 6mln acres of green plants. One of the company’s features is the original names it gives to its solar panels.

Website: https://www.trinasolar.com/

Trina Solar HONEY PD05HONEY PD05

Power output: 285, 280, 275, and 270 watts
Max efficiency: 17.4 percent
Temp coefficient: -0.41% per °C
Weight: 18.6 kilos
Type and number of cells: 60 single-crystal cells
Materials warranty: 10-year
Power warranty: 80 percent after 25 years
Size (mm): 1,650 x 992 x 35 (1.64 m2) 

Website: https://static.trinasolar.com/sites/default/files/EN_TSM_PD05_datasheet_B_2017_web.pdf

Trina Solar HONEY M PLUSHONEY M PLUS

Power output: 315, 310, 305, 300, 295, 290, 285, and 280 watts
Max efficiency: 19.2 percent
Temp coefficient: -0.39% per °C
Weight: 18.6 kilos
Type and number of cells: 60 single-crystal cells
Materials warranty: 10-year
Power warranty: 80 percent after 25 years
Size (mm): 1,650 x 992 x 35 (1.64 m2) 

Trina Solar TALLMAX PLUSTALLMAX PLUS

Power output: 375, 370, 365, 360, 355, 350, 345, and 340 watts
Max efficiency: 19.3 percent
Temp coefficient: -0.39% per °C
Weight: 26 kilos
Type and number of cells: 72 single-crystal cells
Materials warranty: 10-year
Power warranty: 80 percent after 25 years
Size (mm): 1,960 x 992 x 40 (1.94 m2) 

Website: https://www.trinasolar.com/us/product/tallmax

Trina Solar SPLITMAX (144-cell)SPLITMAX (144-cell)

Power output: 380, 375, 370, 365, 360, 355, and 350 watts
Max efficiency: 19.2 percent
Temp coefficient: -0.39% per °C
Weight: 23 kilos
Type and number of cells: 144 single-crystal cells
Materials warranty: 10-year
Power warranty: 80 percent after 30 years
Size (mm): 2,000 x 992 x 40 (1.98 m2) 

SolarWorldSolarWorld

The Germany-based tech firm delivers its solar products worldwide. The product range offered is limited, but all mono- and bifacial models are based on top single-crystal technology. The company provide a 20-year materials warranty – twice longer compared to many other solar manufacturers. Sunmodule Plus is light and thin, made of hardened glass. Its waved profile provides strength and ease of installation due to flexible options. The modules are self-cleaning through water corner drainage, which minimizes the need to be maintained and maximizes energy production. For those looking for aesthetical panels, there is the Black model available.

Website: http://www.solarworld.com/

SolarWorld Sunmodule PlusSunmodule Plus

Power output: 300 watts
Max efficiency: 17.89 percent
Weight: 18 kilos
Type of cells: single-crystal cells
Materials warranty: 20-year
Power warranty: 25 years
Size (mm): 1,675 x 1,001 x 33 (1.68 m2) 

 

SolarWorld Sunmodule Plus BlackSunmodule Plus Black

Power output: 290 watts
Max efficiency: 17.3 percent
Weight: 18 kilos
Type of cells: single-crystal cells
Materials warranty: 20-year
Power warranty: 25 years
Size (mm): 1,675 x 1,001 x 33 (1.68 m2) 

Yingli SolarYingli Solar

Efficiency: 15.7-20.1%
Power output: 260-390W
Types of modules available: monocrystalline, polycrystalline, bifacial
The Chinese company has delivered more than 85mln PV panels to over 90 European, Australian, North and South American countries. It is not a leader in any categories, but its solar panels are good in the middle range. The products offered include single- and multicrystalline as well as mono- and bifacial models, which means you are likely to choose the proper panel for your home and weather conditions.

Website: http://www.yinglisolar.com/en/

Yingli Solar PANDA Bifacial (60-cell)PANDA Bifacial (60-cell)

Power output: 330, 325, 320, 315, and 310 watts
Max efficiency: 20.1 percent
Temp coefficient: -0.38% per °C
Weight: 23 kilos
Type and number of cells: 60 single-crystal cells
Materials warranty: 10-year
Power warranty: 83.5 percent after 25 years
Size (mm): 1,780 x 1,140 x 1,183 (2.03 m2) 

 

Yingli Solar PANDA Bifacial (72-cell)PANDA Bifacial (72-cell)

Power output: 390, 385, 380, 375, and 370 watts
Max efficiency: 19.9 percent
Temp coefficient: -0.38% per °C
Weight: 27.5 kilos
Type and number of cells: 72 single-crystal cells
Materials warranty: 10-year
Power warranty: 83.5 percent after 25 years
Size (mm): 2,097 x 1,140 x 1,183 (2.39 m2) 

Website: http://www.yinglisolar.com/static/assets/uploads/products/downloads/DS_PANDA%E2%80%84BIFACIAL%2072CF_EU_EN_20180615_V04.pdf

Yingli Solar YLM Series (72-cell)YLM Series (72-cell)

Power output: 375, 370, 365, 360, 350, 345, and 340 watts
Max efficiency: 19.3 percent
Temp coefficient: -0.39% per °C
Weight: 22 kilos
Type and number of cells: 72 single-crystal cells
Materials warranty: 10-year
Power warranty: 80 percent after 25 years
Size (mm): 1,995 x 1,145 x 1,170 (2.28 m2) 

Website: http://www.yinglisolar.com/static/assets/uploads/products/downloads/DS_YLM-VG%2072CELL-36b_40mm_EU_EN_20180615_V05.pdf

Yingli Solar YLM Series (60-cell)YLM Series (60-cell)

Power output: 315, 310, 305, 295, and 285 watts
Max efficiency: 19.2 percent
Temp coefficient: -0.39% per °C
Weight: 18.5 kilos
Type and number of cells: 60 single-crystal cells
Materials warranty: 10-year
Power warranty: 80 percent after 25 years
Size (mm): 1,650 x 992 x 35 (1.64 m2) 

Website: http://www.yinglisolar.com/static/assets/uploads/products/downloads/DS_YLM-VG%2060CELL-30b_35mm_EU_EN_20180615_V04.pdf

Bifacial Solar Panels

Bifacial modules feature solar cells on both sides (not on front side only). Installation of such panels on reflecting surfaces boosts the energy generation. Solar panel makers state that double-sided panels can produce 30 percent extra energy. There are multicrystalline bifacial modules available. However, the majority is made of single-crystal Silicon. Below we have listed solar companies manufacturing the best bifacial solar panels (with the highest efficiency) in the United Kingdom.

Top Bifacial Solar Panels 

Manufacturer
Solar panel
Power/efficiency
Trina Solar
HONEY PD05
285W / 17.4%
Trina Solar
HONEY M PLUS
315W / 19.2%
Panasonic
N300
300W / 19.5%
Project Solar
EVO Ultramax
330W / 19.66%
LG
NeON®2 Black
320W / 18.7%
Canadian Solar
KuPower
300W / 18.05%


The Best Solar Panel Manufacturers of 2019

If you’d like to get to know what other manufacturers produce the top-ranked solar panels (by efficiency, temperature coefficient and product warranty) as of 2019, please check the list below:

Manufacturer Efficiency range Temperature coefficient range Materials warranty
Amerisolar 14.75% to 17.01% -0.43 to -0.43 12 years
Axitec 15.37% to 19.41% -0.44 to -0.39 12 years
BenQ Solar (AUO) 15.5% to 18.3% -0.42 to -0.39 10 years
Boviet Solar 16.5% to 17.5% -0.4 to -0.4 12 years
Canadian Solar 15.88% to 19.91% -0.41 to -0.37 10 years
CentroSolar 15.3% to 17.8% -0.44 to -0.42 10 years
CertainTeed Solar 15.4% to 19.9% -0.45 to -0.37 10 years
China Sunergy 14.98% to 21.17% -0.42 to -0.41 10 years
ET Solar 15.67% to 19.07% -0.44 to -0.41 10 years
GCL 16% to 17% -0.41 to -0.41 10 years
Grape Solar 16.21% to 17.64% -0.5 to -0.4 10 years
Green Brilliance 14.24% to 15.58% -0.45 to -0.45 5 years
Hansol 14.97% to 18.05% -0.45 to -0.41 10 years
Q CELLS 17.1% to 19.6% -0.4 to -0.35 12 years
Heliene 15.6% to 19.3% -0.43 to -0.39 10 years
Hyundai 16.2% to 19.4% -0.42 to -0.39 10 years
JA Solar 15.8% to 19.8% -0.4 to -0.36 12 years
JinkoSolar 15.57% to 19.88% -0.4 to -0.36 10 years
Kyocera 14.75% to 16.11% -0.45 to -0.45 10 years
LG 18.4% to 21.7% -0.4 to -0.3 25 years
LONGi Solar 17.4% to 19.3% -0.39 to -0.37 10 years
Mission Solar Energy 18.05% to 18.95% -0.38 to -0.38 12 years
Mitsubishi Electric 16.3% to 16.9% -0.45 to -0.44 10 years
Neo Solar Power 16% to 17% -0.42 to -0.42 10 years
Panasonic 19.1% to 20.3% -0.39 to -0.26 10 years
Peimar Group 16.6% to 19.36% -0.43 to -0.4 20 years
Phono Solar 15.66% to 18.44% -0.45 to -0.4 12 years
REC Group 15.2% to 21.7% -0.4 to -0.26 10 years
RECOM 16% to 19.36% -0.4 to -0.39 12 years
ReneSola 14.9% to 16.9% -0.43 to -0.4 10 years
Renogy Solar 15.3% to 18.5% -0.44 to -0.44 10 years
RGS Energy 15.6% to 17.1% -0.45 to -0.45 11 years
Risen 16.3% to 19.6% -0.39 to -0.39 12 years
S-Energy 15.61% to 19% -0.4 to -0.39 10 years
Seraphim 15.67% to 17.52% -0.43 to -0.42 10 years
Silfab 17.8% to 20% -0.42 to -0.36 12 years
Solaria 19.4% to 20.5% -0.39 to -0.39 25 years
Solartech Universal 19% to 19.9% -0.26 to -0.26 15 years
SunPower 16.5% to 22.8% -0.38 to -0.29 25 years
Talesun Energy 16.2% to 19.5% -0.4 to -0.38 10 years

Why Solar Panels Are Worth Installing

1. They allow saving money on energy bills
Producing free electricity from your solar array will allow you to reduce the amount of energy you have to purchase from electricity suppliers, which will considerably lower your expenses.
2. Using clean energy minimizes greenhouse gas emission 
While conventional energy sources are based on fossil fuel combustion emitting huge volumes of CO2, generation of solar electricity uses green energy and does not release any harmful gases.
3. One can generate electricity twelve months a year
No doubt that PV modules perform better in the summertime, when the sun shines brightly during most of the day. However, solar electricity can also be produced on dull days, so energy generation is possible in all seasons.
4. Solar panels make you less dependent on the power grid
In-home solar electricity production reduces your reliance on the electrical grid because you don’t have to purchase as much power as before. Supplementing your solar generating system with energy storage will make you even freer by enabling you to accumulate the unused energy for later usage during the dark hours.