If you are shopping for panels and keep seeing Qcells and LG mentioned in the same breath, there is one fact that reshapes the whole comparison. LG Electronics left the solar panel business in 2022, so you cannot buy new LG panels for a 2026 installation no matter how good they once were. Qcells, by contrast, is one of the most widely installed panel brands in the country and is actively manufacturing here in the United States. This guide walks through how the two brands actually compare on efficiency, output, and warranty, what an LG warranty is worth today, and why Qcells is the practical choice if you are building a system now. For the current options, it also helps to know the full Qcells panel lineup.
The One Fact That Changes This Comparison
LG made genuinely excellent solar panels. That is not in question. What matters for anyone shopping in 2026 is that LG’s board of directors approved an exit from the global solar panel business in February 2022, and the company wound down production by that June. The reasons were rising material and logistics costs and a market where thin margins made it hard for a premium brand to compete on price.
The result is simple. No new LG solar panels are being manufactured. Any “LG” panels still floating around are old stock, used pulls, or gray-market inventory, and installing discontinued modules on a new roof carries real risk if one fails and cannot be matched. So while the phrase “Qcells vs LG” reads like a head-to-head between two current products, in practice you are comparing a panel you can order today against a panel that history has already closed the book on. The useful question is less “which is better” and more “how did they compare, and what does LG’s exit mean for me.”
Qcells vs LG: Specs Side by Side
When both brands were on the market, this was a close and legitimate matchup between two strong panels. Here is how the flagship products lined up.
Efficiency
LG’s top residential module, the NeON R, reached a module efficiency of roughly 22.3 percent, which was class-leading at the time. Qcells has since closed that gap. The current Q.TRON back contact panel reaches up to about 22.5 percent module efficiency, and the more budget-friendly Q.PEAK DUO line sits around 21 percent. In other words, the efficiency edge LG once held has been matched or slightly exceeded by the Qcells panels you can actually buy today. If efficiency is your deciding factor, it is worth understanding how efficient Qcells panels are across the range rather than fixating on a single headline number.
Power Output and Panel Size
LG NeON R modules were commonly sold in the 380 to 405 watt range for residential roofs. Current Qcells residential panels land in a similar and often higher band, with the Q.TRON and Q.PEAK DUO families covering roughly 400 to 480 watts depending on the model and cell count. For a homeowner, higher wattage per panel means fewer modules to hit your target system size, which can matter on a smaller or more complex roof. The practical takeaway is that Qcells matches or beats the old LG output on a like-for-like footprint, and you can dig into the wattage of current Qcells panels to size a system properly.
Temperature Performance
Both brands built panels that hold up well in heat, which matters across the California, Texas, Florida, and Illinois roofs where these systems get installed. LG’s NeON R carried a temperature coefficient near minus 0.3 percent per degree Celsius, and Qcells panels sit in a comparable range. Neither brand gives up meaningful output on a hot summer afternoon relative to the other, so temperature performance is close to a wash between the two.
Warranty and Long-Term Support
On paper, the two warranties look almost identical. In practice, a warranty is only as good as the company standing behind it, and that is where the two brands now diverge sharply.
What the LG Warranty Covers Now
LG shipped its premium panels with a 25-year product warranty and a 25-year performance warranty, guaranteeing the NeON R would still produce at least 90.8 percent of its rated output after 25 years. LG has said it continues to honor those existing warranties even after leaving the business. The complication is what happens when a claim is approved. Because the panels are no longer produced, LG often cannot supply a matching replacement module, and reports from the field describe a large share of approved claims being settled as cash payments in the range of a few hundred dollars per panel rather than a like-for-like swap. A cash settlement is better than nothing, but it can leave you sourcing a mismatched replacement on your own and hoping the payout covers labor.
How Qcells Backs Its Panels
Qcells covers its current residential panels with a 25-year product warranty and a 25-year performance warranty, and the Q.TRON is guaranteed to still deliver around 90.6 percent of its rated output at year 25. The difference is that Qcells is an operating manufacturer with an active North American presence, so if a panel needs replacing, a matching module is a realistic outcome rather than a cash consolation. You can read the specifics of the Qcells performance and product warranty and see how slowly Qcells panels lose output over that 25-year window. A warranty from a company that is still making the product is simply worth more than an identical warranty from one that has left the market.
Cell Technology and Build Quality
LG built its reputation on N-type monocrystalline cells and its proprietary Cello wire technology, which reduced resistance and squeezed out extra output. It was legitimately advanced engineering for its era.
Qcells has kept investing while LG stepped away. Its Q.ANTUM cell architecture is one of the most deployed cell technologies in the world, and the newer Q.TRON line uses an N-type back contact design that improves low-light performance and reduces losses at the cell level. The Q.PEAK DUO line remains the workhorse P-type option for buyers who want proven reliability at a lower cost. If you want to see how those two families differ, the breakdown of the difference between Q.TRON and Q.PEAK DUO covers it. The short version is that the technology gap that once favored LG has closed, and Qcells now offers a current, actively improving product line where LG offers a frozen snapshot from 2022.
Availability and Bankability in 2026
Bankability is industry shorthand for how confident a lender, installer, or homeowner can be that the panel maker will be around to honor its commitments. It is the quiet factor that should weigh heavily in any 2026 decision.
Qcells is highly bankable. It is one of the largest panel suppliers in the United States, and its panels are built domestically, which also helps them qualify for domestic content preferences in incentive programs. The fact that Qcells panels are built in the United States means the supply chain and the warranty backstop sit on solid ground. LG, having exited the business, cannot offer that assurance for new installations at all. For a purchase you expect to keep for two or three decades, buying from a company that is still in the game is not a small detail. It is arguably the most important one.
What LG Panel Owners Should Know Today
If you already have LG panels on your roof, none of this means they will suddenly stop working. LG NeON panels were well built and should keep producing for many years. Keep your original warranty paperwork and installer records in a safe place, because you will need them if you ever file a claim.
Where LG owners run into trouble is expansion and repair. If you want to add panels later, you generally cannot buy matching new LG modules, so an installer will pair your array with a different brand, which can complicate the electrical design. And if a panel fails, the cash settlement path can leave you managing the replacement yourself. Finding a qualified local installer through a resource like Qcells Near Me is a practical first step when you need someone who can evaluate an aging LG array and integrate new hardware cleanly. Homeowners in this position often find that when it is time to expand or repair, standardizing on a current brand like Qcells is the cleaner long-term move than chasing scarce LG stock.
Why Qcells Is the Practical Choice
Strip away the brand nostalgia and the comparison becomes straightforward for a 2026 buyer. Qcells matches or beats the old LG panels on efficiency and output, carries an equivalent 25-year warranty, and is backed by a manufacturer that is still producing panels and still answering the phone. It builds its modules in the United States; it offers both a premium back contact line and a value line, and it is one of the most installed brands in the country, which means installers know how to design and service around it.
LG earned its strong reputation honestly, and owners of existing LG systems have good hardware. But for anyone choosing panels now, the winner is the brand you can still buy, still expand, and still get replaced under warranty. That is Qcells.
The Bottom Line for 2026 Shoppers
Qcells versus LG is not really a fair fight in 2026, because only one of these panels is still made. LG built premium modules and continues to honor its warranties, but you cannot order new LG panels, and warranty claims increasingly end in cash rather than replacement. Qcells has matched LG on efficiency and output, offers an equal warranty from an active US manufacturer, and gives you a current product line you can expand and service for decades. If you are deciding today, the practical answer is Qcells, and it helps to confirm whether Qcells panels are worth it for your specific roof. To get a Qcells system sized and quoted for your home, reach out through the US Power contact page.
Frequently Asked Questions
Did LG stop making solar panels?
Yes. LG Electronics announced in February 2022 that it would exit the global solar panel business, and it ended production by June of that year. No new LG solar panels are being manufactured, so a 2026 installation would have to use Qcells or another current brand.
Can you still buy LG solar panels in 2026?
Not as new products. Any LG panels still available are leftover stock, used pulls, or gray-market inventory. Installing discontinued modules on a new roof is risky because a failed panel may be impossible to match, which is why most installers now steer new systems toward actively manufactured brands like Qcells.
Are LG or Qcells panels more efficient?
They are very close. LG’s top NeON R reached about 22.3 percent module efficiency, and the current Qcells Q.TRON reaches up to roughly 22.5 percent. The efficiency edge LG once held has been matched by the Qcells panels you can actually buy today.
What happens to my LG solar panel warranty?
LG has said it continues to honor existing 25-year product and performance warranties. The catch is that because the panels are no longer made, an approved claim is often settled as a cash payment of a few hundred dollars per panel rather than a matching replacement module, which can leave you sourcing a substitute yourself.
Is Qcells a good replacement for LG?
For most homeowners, yes. Qcells matches or exceeds the old LG panels on efficiency and wattage, carries an equivalent 25-year warranty, and is backed by an active manufacturer that builds its panels in the United States. That combination of comparable performance and real long-term support makes it a sensible standard for both new systems and LG array repairs or expansions.