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World Record X-Series Solar Panels Now For Sale

Reposted from Solar Love:

SunPower is the well known leader in solar module efficiency. It has raised the bar yet again with the release of some super efficient ” X-Series Solar Panels.”

The new SunPower X-Series Solar Panels for the residential market offer an unprecedented 21.5% efficiency, and deliver more energy, higher reliability and superior aesthetics than conventional solar panels.  The SunPower Signature Black design allows the panels to blend seamlessly into the rooftop.  (PRNewsFoto/SunPower Corp.)

The new SunPower X-Series Solar Panels for the residential market offer an unprecedented 21.5% efficiency. The SunPower Signature Black design allows the panels to blend seamlessly into the rooftop. Image Credit: PRNewsFoto/SunPower Corp.

As I reported less than one month ago, SunPower now holds the record, and second place, and third place in solar module yield tests. Those records were for SunPower’s E-Series solar panels. Now, SunPower is selling these X-Series solar panels, which have a world record efficiency of 21.5%. The target for these X-Series solar panels is the residential market.

Compared to conventional solar panels, SunPower reports that its X-Series panels should generate approximately 75 percent more electricity over the first 25 years of ownership (on a roof of the same size). By anyone’s standards, that’s impressive.

“The X-Series delivers more energy, higher reliability and superior aesthetics than conventional solar panels.  The new world-record efficiency of this product line has received third-party validation by the National Renewable Energy Laboratory (NREL),” SunPower writes.

“The X-Series is made with SunPower’s third-generation Maxeon® solar cells which are built on a solid copper foundation for high reliability and performance. This foundation makes them virtually impervious to the corrosion and cracking that typically degrade conventional panels.  As a result, SunPower solar panels are backed by the industry’s first combined 25-year product and power warranty.”

That sounds good, doesn’t it?



Well, SunPower has always been known for quality. The tradeoff is that SunPower solar panels cost more than competing solar panels. The question is always what you value more, and what is best in specific circumstances. For residential use, I would guess that SunPower’s panels are best in the majority of situations. I think SunPower agrees, but that doesn’t mean it’s resting. In fact, its continued focus on performance is what led to the X-Series — the company already sat at #1.

“Our research and development teams have been working diligently to surpass the high performance standards set by our SunPower E-Series Solar Panels that are built with our second-generation solar cells.  Today, we are proud to announce the world-record efficiency X-Series product line,” said SunPower CEO Tom Werner. “SunPower has set the bar once again, as we continue to beat our own efficiency records, while delivering the most reliable solar technology on the market.”

For more details on the X-Series, check out SunPower’s news release.


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Written By

Zach is tryin' to help society help itself one word at a time. He spends most of his time here on CleanTechnica as its director, chief editor, and CEO. Zach is recognized globally as an electric vehicle, solar energy, and energy storage expert. He has presented about cleantech at conferences in India, the UAE, Ukraine, Poland, Germany, the Netherlands, the USA, Canada, and Curaçao. Zach has long-term investments in Tesla [TSLA], NIO [NIO], Xpeng [XPEV], Ford [F], Amazon [AMZN], Piedmont Lithium [PLL], Lithium Americas [LAC], and Starbucks [SBUX]. But he does not offer (explicitly or implicitly) investment advice of any sort.

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