Solar demand is growing fast, and the manufacturing side of the industry is racing to keep up. That growth has pulled in a wave of new entrants, some with little to no history in solar or even electronics manufacturing at all. For a homeowner comparing quotes, that can make it hard to tell which brands are actually built to last and which ones are still figuring it out on your roof.
A solar panel isn’t a product you replace every couple of years. You’re trusting it to perform quietly and reliably for decades, which means the manufacturer behind it matters just as much as the panel’s price tag. Here’s what to actually look for before you commit.
Why So Many New Manufacturers Are Entering Solar Right Now
Rapid Growth Is Attracting Inexperienced Players
Analysts have forecast steep year over year growth in US solar installations, and that surge in demand has drawn in manufacturers from well outside the solar industry, including companies with backgrounds in jewelry and dairy production moving into cell manufacturing. Panel manufacturing is a complex, precision driven process, and a company without deep engineering experience in it is starting from behind, no matter how much capital they bring to the table.
Speed Without Testing Is a Risky Trade
When manufacturers scale quickly, material and design choices don’t always go through the years of lab and field testing needed to understand how they’ll hold up long term. Independent research from Clean Energy Associates, which reviewed modules across more than 150 project sites in 16 countries, found that a large majority of the panels studied already showed cell cracks, a defect strongly linked to newer, less experienced suppliers entering the market.
☀️ Work With a Manufacturer That’s Proven Itself
See how Maxeon’s nearly 40 year track record compares before you commit to a newer brand.
Get My Free Quote →What Field Tested Data Actually Proves
Why a Warranty Is Only as Good as the Data Behind It
Any manufacturer can print a long warranty on a spec sheet. What matters is whether that warranty is backed by real testing and years of field performance, not just an ambitious promise. A warranty is a commitment between the manufacturer and the homeowner, and the only way to know if it will actually be honored decades from now is to look at how the company has performed so far.
Decades of Monitoring, Not Just Lab Simulations
Maxeon panels have been independently monitored at the National Renewable Energy Laboratory for more than fifteen years, showing performance that has held remarkably close to its original output over that entire span. That’s the kind of long term, real world evidence that lab testing alone can’t replicate, and it’s exactly the reason experience matters in solar manufacturing.
📋 Don’t Just Take a Manufacturer’s Word for It
You can review the technical data yourself before making a decision that lasts decades.
Request My Free Quote →How to Evaluate a Solar Manufacturer Before You Buy
Ask How Long They’ve Actually Been Building Panels
A company’s total years in business matters less than how long they’ve specifically been manufacturing solar cells and panels. A newer subsidiary of an established company isn’t the same as a manufacturer with decades of hands-on cell engineering experience.
Look for Independent Verification, Not Just Marketing Claims
Don’t take warranty length or performance claims at face value. Check for Maxeon’s third party testing and certifications, which validate manufacturer claims against independent standards rather than internal marketing. If a brand can’t point you to independent data, that’s worth asking about directly.
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Find My Certified Dealer →Why US Power Only Installs Proven Panel Brands
A Vetting Process That Protects Homeowners
US Power works exclusively with manufacturers that have a demonstrated track record of reliability, rather than chasing the lowest cost supplier of the moment. This is part of why US Power’s vetted installation partners only bring proven technology to your roof, backed by both a manufacturer warranty and a licensed workmanship warranty from the installation itself.
Two Layers of Protection, Not Just One
When you work with a Certified Maxeon Dealer, you’re covered by Maxeon’s 40 year manufacturer warranty and by US Power’s own installation warranty. That combination is designed to protect you whether an issue traces back to the panel or to the install, rather than leaving you to sort out which party is responsible.
The Bottom Line on Choosing a Manufacturer
A lower price today doesn’t mean much if the panel behind it can’t back up its promises over the next 25 to 40 years. Choosing a manufacturer with a proven track record, independently verified data, and a warranty built on real field performance is how you protect your investment for the long haul. For more insights on choosing the right solar panel, explore our blog.
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Get My Free Quote →Frequently Asked Questions About Choosing a Solar Manufacturer
Why does it matter how long a solar manufacturer has been in business?
Solar panel manufacturing is a precise, engineering intensive process. Companies with decades of dedicated experience have had the time to identify and correct failure points that newer manufacturers may not have encountered yet.
Is a newer solar brand automatically riskier?
Not automatically, but a shorter track record means less field data to evaluate. Ask for independent testing results and long term field performance data before assuming a newer brand’s claims will hold up over decades.
What is NREL testing and why does it matter?
The National Renewable Energy Laboratory independently monitors solar panel performance over long time periods under real world conditions. Panels with over a decade of NREL monitoring data offer a level of proof that lab simulations or short term testing simply can’t match.
How can I verify a manufacturer’s warranty claims?
Look for third party certifications, published test data, and how long the manufacturer has actually honored warranty claims in the field, not just what’s written in the warranty document itself.