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Does Solar Panel Temperature Coefficient Matter. Sunpower 500w solar panel

Does Solar Panel Temperature Coefficient Matter. Sunpower 500w solar panel

Does Solar Panel Temperature Coefficient Matter?

If you are trying to maximize the amount of energy that your solar panel system can generate, then your solar panel’s temperature coefficient is something that you want to be familiar with.

Your solar panel’s temperature coefficient has to do with the influence that the panel’s temperature has on its productivity. In this post, we will look at exactly what a solar panel’s temperature coefficient is and whether or not you should FOCUS on it when planning your solar project.

Solar Panel Temperature Coefficient

The temperature of your solar panel has a direct effect on its ability to generate electricity. This has to do with the laws of thermodynamics and how heat limits any electronics ability to produce power.

For solar panels, this impact is reflected through the temperature coefficient, which is expressed as the percentage decrease in output for every 1-degree Celsius (°C) increase in temperature from 25°C (77°F). Solar panels are tested for their efficiency at 25°C, and that is why this is used as the reference point.

Most solar panels have a temperature coefficient of around.0.3% / °C to.0.5% / °C. For example, SunPower’s solar panels all have a temperature coefficient of.0.37% / °C.

What this means is that for every 1°C above 25°C, SunPower’s solar panels decrease in efficiency by 0.37%. So, if your panels are at 35°C (95°F) and have an overall efficiency of 17%, then their true efficiency at that temperature will be closer to 16.4%.

Temperature coefficients for top panels on Solar.com

 Solar Manufacturer Temperature Coefficient Range Q CELLS -0.42 to.0.37 Hyundai -0.45 to.0.41 LG -0.42 to.0.3 SunPower -0.38 to.0.29 Panasonic -0.3 to.0.29

Though this decrease might seem negligible, when you consider the fact that a solar panel can reach up to 65°C, this number can start to add up.

Does it Matter For Your Solar Project?

A solar panel’s temperature coefficient is not the only factor that influences a panel’s overall power output, but it is a good starting point for calculating a more realistic level of production for your specific setup.

When you are choosing the best solar panels for your home, you can think of how hot your panel may get and use that to estimate how efficient they will be on your rooftop. The good thing is that unless your solar panels are exposed to an exorbitant amount of heat, the decrease in efficiency will likely be negligible, even on a hot summer’s day.

If your roof is designed to absorb a massive amount of heat, and you are also living in a location that can see temperatures of 110°F or higher frequently throughout the summer, the loss will be greater, but still not so severe that it will make a long-term impact on your energy savings.

Having your solar panels on top of a heated vent will cause issues, so that is definitely something to watch out for while planning your solar panel array.

How to Minimize Solar Panel Efficiency Loss

Within the scope of the solar panel’s temperature coefficient, the primary way to mitigate loss in efficiency is through the reduction in the temperature of your solar panels. Here are some of the factors that influence the panel’s temperature:

• The type of solar panel installation has a direct effect on the panel’s temperature. For example, if an angled, roof-mounted system is at 30°C, that same system, but mounted flat on the rooftop, maybe at 35°C.
• Thin film solar panels have a lower temperature coefficient than traditional monocrystalline or polycrystalline panels. Thin film panels can see temperature coefficients closer to.0.2% / °C.
• The material of your roof can have an impact on the solar panel’s temperature. Certain rooftops absorb more heat than others. Make sure to take into account your roof type when making your analysis.

Solar Temperature Coefficient is… Generally Insignificant

When you think of the long-term production goals for your solar panel system and then account for the losses that come from the panel’s temperature coefficient, the impact is quite insignificant for the majority of homeowners.

In most areas of the country, your solar panels will likely stay around 25-35°C throughout the majority of the year. The exception is with places that can reach extreme temperatures during the summer months, like Phoenix, Las Vegas, and many other cities, especially when considering the recent heat waves.

To get all of these details and more for your specific solar panel project, you can get started with our free service at Solar.com and talk with one of our personal energy advisors today!

Overview of our SunPower solar panels

SunPower solar panels are the most powerful solar panels you can find on the market. Not every solar panel is made equal: there are major technical differences between brands that affect life span, degradation and power output. If you would like to buy SunPower solar panels we’ll be happy to give you advice about your options.

SunPower panels have a solid copper base plate, ensuring strength and protection against corrosion by the elements

There are no visible grid lines on the panel. The SunPower Maxeon cells use back contact conductors, so that they can absorb more sunlight

The panel has thick connectors that can deal with the expansion and retraction caused by daily temperature changes

Maximum yield

Do you want to get the maximum yield out of your roof? It’s important to look at the yield per square meter of surface area. SunPower solar panels deliver 35% more power than standard solar panels over the duration of 25 years on the same surface area. That means that you can generate more power on a smaller surface with SunPower solar panels.

Best in class

SunPower solar panels always get the best results in solar panel comparisons. We looked into how well SunPower scores in terms of power and efficiency, aesthetics, warranty conditions and quality. In all aspects SunPower beats the competition hands down!

Value for money

SunPower panels require a slightly bigger investment than other brands. It’s important to not just look at the cost per panel, but at the total cost of the installation. If you choose high power panels such as SunPower, you need fewer panles, and therefore less mounting material and labour to get to a similar amount of power.

The best warranty

SunPower offers a unique 40 year warranty, which is a combination of power and product warranty for SunPower solar panels. If, in spite of the high quality standards, any issue arises with the panel, then you have the certainty of a comprehensive warranty coverage. However, the solid copper foundation of the panels guarantees unsurpassed quality with very little risk of failure.

Reduced loss of power

SunPower suffer much lower rates of degradation than any other brand of solar panel. That means that their output power stays at a higher level, with the difference increasing year on year. This isn’t just what SunPower says; we investigated the claim and found it to be true. Lower degradation plus and higher effiency means SunPower solar panles produce 35% more energy over their expected life span!

Manufactured sustainably

SunPower commits itself to create solar panels that are as sustainable as the energy they produce. SunPower achieves this aim by buying locally where they can, and re-using material used for the production of SunPower solar panels. information about SunPower’s advanced production methods can be found on their website.

Maximum yield

Do you want to get the maximum yield out of your roof? It’s important to look at the yield per square meter of surface area. SunPower solar panels deliver 35% more power than standard solar panels over the duration of 25 years on the same surface area. That means that you can generate more power on a smaller surface with SunPower solar panels.

Best in class

SunPower solar panels always get the best results in solar panel comparisons. We looked into how well SunPower scores in terms of power and efficiency, aesthetics, warranty conditions and quality. In all aspects SunPower beats the competition hands down!

Value for money

SunPower panels require a slightly bigger investment than other brands. It’s important to not just look at the cost per panel, but at the total cost of the installation. If you choose high power panels such as SunPower, you need fewer panles, and therefore less mounting material and labour to get to a similar amount of power.

The best warranty

SunPower offers a unique 40 year warranty, which is a combination of power and product warranty for SunPower solar panels. If, in spite of the high quality standards, any issue arises with the panel, then you have the certainty of a comprehensive warranty coverage. However, the solid copper foundation of the panels guarantees unsurpassed quality with very little risk of failure.

Reduced loss of power

SunPower suffer much lower rates of degradation than any other brand of solar panel. That means that their output power stays at a higher level, with the difference increasing year on year. This isn’t just what SunPower says; we investigated the claim and found it to be true. Lower degradation plus and higher effiency means SunPower solar panles produce 35% more energy over their expected life span!

Manufactured sustainably

SunPower commits itself to create solar panels that are as sustainable as the energy they produce. SunPower achieves this aim by buying locally where they can, and re-using material used for the production of SunPower solar panels. information about SunPower’s advanced production methods can be found on their website.

SunPower MAX3-430

 Manufacturer: Sunpower Type: SunPower MAX3-430 Dimensions: 1812 x 1046 x 40 Gewicht(kg): 21.2 kg Power: 430 Wp Product warranty: 40 years Power warranty: 40 years

SunPower MAX3-425

 Manufacturer: Sunpower Type: SunPower MAX3-425 Dimensions: 1812 x 1046 x 40 Gewicht(kg): 21.2 kg Power: 425 Wp Product warranty: 40 years Power warranty: 40 years

SunPower MAX3-415 BLK

 Manufacturer: Sunpower Type: SunPower MAX3-415-BLK Dimensions: 1812 x 1046 x 40 Gewicht(kg): 21.2 kg Power: 415 Wp Product warranty: 40 years Power warranty: 40 years

Facts about SunPower solar panels

We’re proud of our accreditation as SunPower Elite Partner. Elite Partners have received advanced training and provide high quality designs and installations, as well as excellent customer satisfaction.

The advantages of working with Zonnefabriek:

• All-in-1: solar panels, installation, monitoring, performance and product warranty.
• Fast and expert installation, usually in one day.
• Our customers save on average € 614 p.y. on their energy bills.
• You can monitor your system on-line
• The installation will be done by an installer who is certified both as a InstallQ installer as well as a SunPower Elite partner
• 10% extra yield from your solar system thanks to our customized installation process
• energy per m 2 : SunPower X-series panels deliver 3,6% more energy per solar panel. This means you can generate more energy on a small surface with fewer panels.
• electricity: SunPower solar panels produce more electricity than conventional panels. They are already more powerful, but also maintain their high efficiency during their lifespan, resulting in 35% more energy per m 2 in the first 25 years.
• flexibility: Since the Maxeon3-series generates more energy on a smaller surface, you will always have the option of increasing production in the future by adding more panels to your system.
• warranty: SunPower offers a unique 40 year warranty, both on performance and on product. In the unlikely event that ther is an issue with these high quality products, then you have the security of extensive coverage. However the solid copper foundation means you can count on unparalleled reliability and a minimal risk of defects.
• design: Within the Maxeon3-series we also offer the ‘SunPower Signature Black’ A black solar panel that fits seamlessly into your roof. The panel is constructed with black solar cells and anti-reflective glas to avoid any light reflection.

SunPower MAXEON solar panels are the most powerful solar panels available on the market today. Every single panel has a peak power of up to 400 Watt-peak! With their 22,6% efficiency there is no other solar panel that can harvest more energy from your roof.

over, SunPower’s quality standards guarantee that the panels will also retain their high power, even after 25 years. That’s why SunPower is the only brand that dares to offer a double 25 year warranty, and that also guarantees the lowest annual degradation rate of no more than 0,25 % per year.

Higher power that remains high over the years, can it be any better? Yes! bcause SunPower solar panels also perform better than the competition in cases of partial shading, and in high temperatures! That’s the 3-in-1 advantage of SunPower:

• Highest power on the market
• Longest lifespan with least wear and tear
• Best performance in real-world circumstances

Thanks to these characteristics SunPower solar panels deliver 35% more energy over their lifetime than conventional panels!

• All-in-1: solar panels, installation, monitoring, performance and product warranty.
• Fast and expert installation, usually in one day.
• Our customers save on average € 614 p.y. on their energy bills.
• You can monitor your system on-line
• The installation will be done by an installer who is certified both as a InstallQ installer as well as a SunPower Elite partner
• 10% extra yield from your solar system thanks to our customized installation process
• energy per m 2 : SunPower X-series panels deliver 3,6% more energy per solar panel. This means you can generate more energy on a small surface with fewer panels.
• electricity: SunPower solar panels produce more electricity than conventional panels. They are already more powerful, but also maintain their high efficiency during their lifespan, resulting in 35% more energy per m 2 in the first 25 years.
• flexibility: Since the Maxeon3-series generates more energy on a smaller surface, you will always have the option of increasing production in the future by adding more panels to your system.
• warranty: SunPower offers a unique 40 year warranty, both on performance and on product. In the unlikely event that ther is an issue with these high quality products, then you have the security of extensive coverage. However the solid copper foundation means you can count on unparalleled reliability and a minimal risk of defects.
• design: Within the Maxeon3-series we also offer the ‘SunPower Signature Black’ A black solar panel that fits seamlessly into your roof. The panel is constructed with black solar cells and anti-reflective glas to avoid any light reflection.
• Highest power on the market
• Longest lifespan with least wear and tear
• Best performance in real-world circumstances

Thanks to these characteristics SunPower solar panels deliver 35% more energy over their lifetime than conventional panels!

SunPower increases solar cell size with new 400-W A-Series of modules for the residential market

SunPower launches today in the United States a new line of solar modules for the residential market. The new A-Series, using SunPower’s “Next Generation Technology” will deliver 400 and 415 W of power. In Europe and Australia, the company has also released 400-W panels known as Maxeon 3.

New A-Series modules on a home

“SunPower is introducing the world’s first 400-W residential solar panels as most in the industry are just crossing the 300-W threshold for home solar,” said Jeff Waters, CEO of the SunPower Technologies business unit. “Our record-breaking cell technology and innovative research and development efforts have enabled us to fit more power capacity on rooftops than we ever have before. Our growing panel portfolio is delivering unprecedented value across global markets that goes unmatched by any other residential solar technology currently available.”

SunPower’s patented Maxeon solar cells are built on a solid copper foundation for high reliability and performance. The Maxeon cells provide SunPower panels with improved resistance to corrosion and cracking.

SunPower’s new larger solar cell (right). Credit: Paul Sakuma Photography

A-Series panels are built with SunPower’s fifth-generation Maxeon solar cells, called Gen 5, which were perfected at the company’s Silicon Valley Research Facility. This new technology required new materials, tools and processes, and resulted in a 65% larger cell than previous generations that absorbs more sunlight and ultimately offers more savings to homeowners.

Combined with Maxeon Gen 5 solar cells is one of the industry’s highest-powered, factory-integrated microinverter, making A-Series ideal for use with SunPower’s Equinox platform. All SunPower panels are backed by its 25-year combined power and product warranty.

The Maxeon 3 panels in Europe and Australia use SunPower’s third generation of smaller Maxeon cells.

“SunPower solar panels are designed to maximize power production and energy savings for our customers, and we’re only scratching the surface of what’s possible in home solar,” Waters said. “With our innovative solar solutions and services, and our established channels to market, SunPower will continue building on its strong leadership position in distributed generation around the world.”

About The Author

Kelly Pickerel

Kelly Pickerel has over a decade of experience reporting on the U.S. solar industry and is currently editor in chief of Solar Power World.

Комментарии и мнения владельцев

Larger maybe, but you all seem to forget that word and real meaning of the word… efficiency! the A425 has 22.8% efficiency, so a larger panel with more efficiency means that you will actually buy less number of panels.

This is “vaporware” in the US. For one thing, I have yet to find a dealer (6-8) contacted nation wide. None of them have 400w x-series. For second point, The one that did wanted 1400 a panel plus shipping. Im told by other dealer that this is bullocks because sunpower will not sell panels unless the dealer gets to install. Now having said this I would strongly discourage others from buying from SunPower. This practice that you are forced to buy install with panels is bad for the consumer. And in other industries and situations this is called “tie-in” and courts have ruled it illegal. Customers dont have to wait for lawsuit — just vote with your feet. There are other manufacturers that are so close to this 400W, that its going to be better to go with them.

This. I have been asking them for panel pricing for years now. #DemandBetterSolar. How do they even make money if nobody can buy them, or even determine cost? Just like Auntie Maxeon said, #ReclaimingMyTime. I do not have time for games and nonexistent nonsense. Being mysterious and inaccessible is not cool, it is frustrating af. You are not the revolution. You are not available. I hate your brand. #SunPowerSucks. I hope you get Solyndra’d. You are useless. If your market is multimillion dollar installations only and idiots willing to pay 4x too much for a goddamn commodity, STOP ADVERTIZING TO ME. Solar Cells should be getting smaller and more modular so they can fit in more places, not 65% larger. But you are not trying to install your panels in more places. You are trying to be exclusive. Which is gross morally, and must be bad for your business if it exists at all. Go power your own world cuz you haven’t even tried to power anything in mine, ever. Your degradation rate is actually the worst in the industry because this invisible and inaccessible pricing is demeaning, degrading, and disrespectful to all the nerds that spend their free time trying to make the world a better place and fall into the trap of your marketing wasteland. I don’t know how one monetizes pissing off the little people, but if i ever get my hands on an elusive SunPower panel, i’m throwing it off the roof and tossing the shattered glass onto YouTube to demand better solar. I deserve 420W panels for my home grow anyway. I’ll wait. #ReclaimingMyShine.

I was wondering how much do these 400Watt modules cost? and the type they are called? I was thinking about investing in one where could you recommend me to get started?

Ok well can someone please tell us the difference and do a comparison article. That will answer the questions, that would be really really great and also maybe throw availability. Thanks

I just completed an install with the new A series 415 w modules. Amazing product! They are an AC module. 66 cell format. Just slightly larger in height to the standard 60 cell format. Approx 3-4 inches taller.

IF so, these panels will be about 3 inches wider and actually around 1 inch shorter than the typical 350W panels out today, much like the LG 350W series panels. The old Schott solar PV panels that were in the 400W to 500 watt range were right at 4 foot wide by 8 foot long. This allows one to “harvest” 400 to 415W from about 16.25 square feet as opposed to “harvesting” 330 to 350W from about 17.5 square feet. It’s this kind of technology nudge that will drive some early adopters of solar PV to install these new panels and put their old system on e-bay for the secondary used market. Is this not how the automobile built by Henry Ford became so popular. First as an affordable automobile, then as a cheap second hand car creating the “used car” market? Bring on the high output panels, the hybrid inverters and cheap battery storage to allow net zero energy use for decades to come.

So this is actually 66 cells at 400 watts? And what is the difference between the 400W to the 415W is the 400W a blk on blk?

This is bogus. You can’t get them. Certainly you can’t get them in the US. That’s what they will tell you when you call SP. But they wills say Europe. Call Europe and they will tell you, not Europe; but you can get them in the US.

There have been 400W, even 500W panels for 4.5 years. Even 500W panels at the size of these new Sunpower panels, 4.5 years ago.

The 6×10 cell A-series produces 400W / panel at 95cm x 156cm while the 96-panel X-series produces 370W are measured 105cm x 156cm.

What are the frame dimensions? With a larger cell it seems like they would need a larger module. If this is actually the rough size of a current 60-cell module I’ll be impressed, but if they’re making something roughly the size of a 72-cell they can get in line behind other manufacturers who have already done it.

This image going around the internet apparently shows SunPower’s smaller X series on left and the new A series on right. The X series is a 96-cell panel… which is closeish to a traditional 60-cell panel. So maybe the 66-cell A series is more like a traditional 72-cell panel? Not sure.

SunPower to launch 625 W shingled module

Group spinoff Maxeon Solar Technologies will produce the new Performance 5 modules with bifacial mono-PERC solar cells, made from large format eight-inch G12 wafers. The panels boast an efficiency of 21.2%.

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U.S.-based SunPower, which is majority owned by French energy giant Total, is planning to launch a new shingled module series with 625 W of power output.

Group spinoff Maxeon Solar Technologies will commercialize the Performance 5 line in the fourth quarter. The high-efficiency, bifacial mono-PERC solar panels will be made with large format eight-inch G12 wafers and will have an efficiency of 21.2%.

“Our release of the new SunPower Performance 5 panels comes along with a renewed commitment to large-scale installations supported by significant manufacturing capacity scale-up of shingled cell panel technology by our Huansheng Photovoltaic (HSPV) joint venture in China,” SunPower said.

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Maxeon Solar Technologies is also owned by Tianjin Zhonghuan Semiconductor, which was recently acquired by TCL, one of China’s biggest electronics manufacturers. SunPower’s HSPV joint venture with Zhonghuan will increase production capacity at its three factories in China from around 2 GW to 8 GW by 2021. The first of the three manufacturing facilities will be fully ramped up by the end of this year.

SunPower announced plans to spin off its manufacturing business into a new company last November. It also recently decided to sell its solar OM business to Canadian mid-market private equity firm Clairvest Group for an undisclosed sum.

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Emiliano Bellini

Emiliano joined pv magazine in March 2017. He has been reporting on solar and renewable energy since 2009.