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SolarWorld Solar Panels

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  • Overview
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SolarWorld Panels for Sale

SolarWorld—once the largest U.S. solar panel maker—still commands loyalty among installers who value German-engineered quality, U.S. assembly heritage, and a warranty track record stretching back four decades. Whether you're hunting for a "new-old-stock" SolarWorld 350 W panel, a battle-tested SolarWorld 285 spec sheet, or simply curious how the brand stacks up in 2025, this guide has you covered—complete with pallet-pricing links to the SolarWorld panels catalog at A1 SolarStore.

Why Choose SolarWorld Solar

🇺🇸 Made in USA Heritage

Produced 800 MW annually in Hillsboro, OR—one of the most advanced manufacturing lines outside Asia with proven quality standards

⚡ Plus-Sorting Technology

Every module shipped at or above nameplate power—no "-3% tolerance" surprises with guaranteed performance specifications

🛡️ Extended Warranties

Up to 30-year linear warranties with <0.35% annual degradation—90% at 21 years, 86.85% at 30 years exceeding industry standards

📊 Proven Bankability

Long-term field data feed NIST PV models, showing <0.7%/yr loss—beating industry averages with reliable performance

"We've been swapping fading 2010 poly arrays with SolarWorld 350 XL mono—customers love the brand equity and beefy frames."

Meet the Sunmodule Product Family

Sunmodule Plus 285 Mono

Model: SW 285 Mono (33 mm frame) | Efficiency: 17.0 % | Temp-co: -0.4 % / °C.
Ideal for residential retrofits where 60-cell format slots into existing racks.

Sunmodule Plus 350 XL Mono

72-cell, 1993 × 1000 mm frame, up to 18.1 % efficiency. Perfect for small C&I roofs chasing sub-$0.45/W hardware.

Sunmodule Protect Glass-Glass 270-290 W

Dual-glass lamination adds 20-year glass breakage cover and industry-leading 30-year linear warranty—ideal for coastal or desert installs.

SeriesPowerCellsWarrantyUnique Edge
Plus 60-cell260-300 W6025 yr linearRigid 40 mm Al frame
Plus XL 72-cell340-350 W7225 yr linearLarger, lighter
Protect GG270-290 W6030 yr linearGlass-glass, <0.35 %/yr

Performance, Durability & Field Data

FeatureCertification/StandardBenefit
Plus-Sorting TechnologyEvery module tested at nameplate Guaranteed performance output
Hail/Load Testing5,400 Pa front / 3,600 Pa rear1.5× IEC minimum standards
NIST Performance Models<0.7%/yr degradation tracking0.1% NPV advantage verified
Long-term Field Data13-year Arizona installation92% nameplate after 13 years

Product Line Comparison

SeriesPower OutputEfficiencyCell TechnologyPrice/WBest For
Plus 60-cell260W - 300W17.0%60-cell Mono$0.40-0.42Residential retrofits
Plus XL 72-cell340W - 350W18.1%72-cell Mono$0.43-0.45Small C&I installations
Protect Glass-Glass270W - 290W16.5%60-cell Dual Glass$0.45-0.48Coastal & desert installs

SolarWorld vs Competition

FeatureSolarWorld 350WTypical ImportAdvantage
Manufacturing OriginUSA Heritage (Hillsboro, OR)Malaysia / ThailandQuality pedigree
Module Efficiency18.1%17-18%More watts per ft²
Plus-Sorting100% nameplate guaranteed±3% tolerancePredictable output
Product/Power Warranty25/30 years12/25 yearsLonger ROI window
Price per Watt (USA)$0.43$0.39-0.42Premium quality value

*Typical pallet pricing, June 2025

Frequently Asked Questions

Are SolarWorld panels still made?

Production ended in 2018; remaining inventory is new-old-stock or refurbished.

Where were SolarWorld modules manufactured?

SolarWorld Americas produced panels in Hillsboro, Oregon from 2008-2018, with German-engineered quality standards.

What is the SolarWorld warranty?

SolarWorld offered 25-year linear power warranties and up to 30-year warranties on Protect series. Some warranties transferred to SunPower; many resellers add third-party coverage to NOS pallets.

Can I buy SolarWorld panels in the USA?

Yes, through authorized dealers like A1 SolarStore. Stock is limited to new-old-stock and refurbished inventory, typically priced at $0.40-$0.45/W.

Ready to Power Your Project?

Get premium SolarWorld panels with proven USA heritage at competitive prices. Plus-Sorting technology, 30-year warranty, and reliable performance.

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