Our picks for the best solar panel brands
Compare the 3 top solar panels of 2026
| Our pick for | Efficiency | Temperature coefficient | Maximum annual degradation rate | Solar cell technology | Weight | 25-year output guarantee | |
|---|---|---|---|---|---|---|---|
| Maxeon 6 | Best warranty | Up to 22.8% | -0.29% per °C | 0.25% | Monocrystalline (IBC) | 46 pounds | 94% |
| Qcells Q.TRON | Best value | Up to 22.5% | -0.30% per °C | 0.33% | N-type monocrystalline | 46.7 pounds | 90.58% |
| REC ALPHA PURE-RX | Best performance overall | Up to 22.6% | -0.24% per °C | 0.25% | Heterojunction technology (HJT) | 50 pounds | 92% |
More details on our top solar panel picks
We gave preference to monocrystalline panels because they’re the most powerful type of solar panels. However, they’re also the most expensive. Robert Flores, a solar expert at the University of California, Irvine Advanced Power and Energy Program, calls them the “Cadillac of solar panels.” He also gave us some impartial guidance on choosing quality solar panels (more on that below).
Maxeon 6
Qcells Q.TRON
REC Alpha Pure-RX
Ultimate guide to buying solar panels
Going solar isn’t just about slapping some panels on your roof and hoping for the best. You have to understand your home’s energy needs to really compare different solar installer quotes.
The average homeowner spends $19,873 on solar panels.
Jump to insightA solar panel’s efficiency rating tells you how good it is at turning sunlight into electricity. The higher the efficiency rating, the more electricity the solar panel can produce from the same amount of sunlight.
Jump to insightWith all factors being equal — location, available space (roof or another dedicated area), shading, climate and natural degradation of the panels — monocrystalline and polycrystalline panels are typically the best choice for residential energy needs.
Jump to insightLatest solar panel technology
Solar panels have evolved quickly, and the newest technologies boost efficiency, durability and real-world energy production. Here are the key tech terms you’ll see in today’s top panels.
- PERC (p-type): The former industry standard. Reliable and affordable, but typically capped at around 20% to 22% efficiency with standard 25-year performance warranties.
- N-type: More stable silicon that resists degradation better than PERC. Forms the foundation for today’s higher-efficiency panels.
- TOPCon: Now a mainstream premium option. Many 2026 models reach 23% to 25% efficiency, often backed by 30 to 35-year performance warranties. The price gap vs. older PERC panels has narrowed to roughly 10% to 15%, improving long-term ROI.
- HJT (Heterojunction): High-end N-type technology that combines crystalline and thin-film layers. Delivers excellent heat performance, very low degradation and efficiency often in the 23% to 25% range for premium models.
- Bifacial: Panels that generate power from both sides by capturing reflected light. Common in commercial systems and increasingly available in residential premium lines.
What are the different types of solar panels?
The main types of solar panels are monocrystalline, polycrystalline, thin-film and concentrated photovoltaic (PV). For most homeowners, the real choice comes down to monocrystalline or polycrystalline.
“Monocrystalline solar panels will produce the most efficiency, while polycrystalline solar panels are the most environmentally friendly,” said Andrew Meyer, CEO of Arbor, a digital energy advisor. “If you’re on a budget, you could also consider thin-film, but keep in mind they won’t last as long as the other two types.”
Types of solar panels
| Monocrystalline | Polycrystalline | Thin-film | Concentrated PV (CPV) | |
|---|---|---|---|---|
| Appearance | Sleek, black | Blue, speckled | Dark matte, sometimes bluish | Large, glossy or textured |
| Relative efficiency | High | Slightly lower | Low | Extremely high |
| Relative cost | High | Less expensive | Less expensive | Very expensive |
| Best for | Homes that want maximum power from fewer panels | Budget-conscious homeowners with plenty of roof space | Commercial buildings (rarely used for homes) | Satellites and research |
» MORE: Black vs. blue solar panels
What to know about solar panel efficiency
A panel’s efficiency rating tells you how well it converts sunlight into electricity. The higher the percentage, the more power it produces from the same amount of sunlight.
For residential systems today:
- 20% to 22% efficiency is strong
- Higher wattage panels (400W+) can reduce how many panels you need
If roof space is limited, efficiency matters more. If you have plenty of space, slightly lower efficiency panels may still work well.
Also, pay attention to different panels’ power ratings, temperature coefficients and degradation rates as you compare. Solar panels lose a small percentage of efficiency each year, typically 0.25% to 0.5% annually.
How much do solar panels cost?
A typical residential solar panel system costs anywhere from $10,000 to $30,000 or more. Your total price includes panels, inverters, electrical work and installation. Batteries add extra cost. Additional factors include:
- System size
- Location
- Equipment quality
- Labor
- Available tax credits and rebates
» EXPLORE: Solar incentives by state
Pro tip
A higher price doesn’t always mean better performance. Compare cost per watt and warranty coverage to make sure you’re getting the best deal.
Are solar panels worth it?
Solar panels are worth it for the long-term utility savings and the environmental impact. When you’re choosing a solar energy company to power your home, look for one that has a high efficiency rating to maximize the amount of power your solar system generates and a good warranty to protect you from future maintenance costs.
It’s a long-term investment, considering solar panels last 20 to 25 years. “If you think about this in terms of ROI, typically reducing your loads by installing or replacing equipment will give you a higher return,” Flores said. “If you reduce your electrical load, it reduces how much solar energy you need also.”
5 things to check before you buy solar panels
These five checks can help you avoid common mistakes and make sure the solar panels you’re buying actually make sense for your home.
1. Does the system match your energy use?
How many solar panels you need depends on your household’s average energy usage. Review your past 12 months of electric bills. Your installer should size the system based on your actual usage. Now is not the time for guesswork.
Pro tip
If you’re planning to upgrade appliances or add an EV, factor that in too.
2. Are the panels efficient enough?
Solar panels with high efficiency ratings produce more power with limited space. Higher-wattage panels can reduce the number of panels you need. Here is what to look for:
- 20%+ efficiency
- High wattage (400W+ is common now)
- Strong temperature performance if you live in a hot climate
Flores recommended the National Renewable Energy Laboratory’s PVWatts Calculator. NREL’s free online tool lets you type in your address and estimate how much electricity a solar panel can produce over a year.
3. What’s the total cost per watt?
It’s easy to focus on the total price when comparing solar quotes, but that’s not necessarily the most important thing to consider.
Cost per watt and estimated cost per kilowatt-hour (kWh) are the most useful metrics for comparing panels.
“The key thing, regardless of panel type, comes down to dollars per kilowatt-hour installed price,” Flores said. “It boils down to, What is the amount of money you’re paying for each unit of energy?”
How much you pay for each unit of power varies by brand, location and other factors.
“If you’re closer to $2 per watt, it’s almost always gonna make sense financially,” Flores said. “When you get to mid-$2s or $3s, you’re competing with just buying electricity from the utility to where it doesn’t make sense.”
» COMPARE: Best cheap solar panels
4. Who’s installing it, and are they qualified?
The installer matters just as much as the panel brand. Make sure the installer:
- Is properly licensed in your state
- Has solid reviews
- Uses certified equipment
- Offers clear workmanship warranties
Did you know?
The North American Board of Certified Energy Practitioners (NABCEP) offers certifications and credentials for renewable energy professionals, including solar PV installers.
» MORE: Where to buy solar panels
5. What does the warranty really cover?
Most manufacturers offer performance and product warranties. A product warranty typically covers defects for around 10 to 12 years, while a performance warranty ensures the panel maintains a specified efficiency for 25 years or more.
If you plan to stay in your home long term, warranty strength is critical. Look for:
- At least a 25-year performance warranty
- A solid product warranty (some brands offer longer)
- Clear labor or workmanship coverage
- Any production guarantees in writing
It’s often worth it to pay a little more to get a better warranty. For example, when Buddy in Florida was comparing solar companies, one “came in with all the popular brand name items and a reasonable offer of $23,000, with 25-year panel warranty and 5-year labor warranty.”
Another solar customer, Michael in Nevada, went with a company that guarantees about 97% of its panels’ production. “So if it isn’t, I can always call them on the guarantee on that. Whereas other ones, the details on those were down to 80%, so I’d lose quite a bit,” Michael said.
Pro tip
Make sure that your roof is in good enough condition to support the solar panels that you want. If you live in an older home, it might make sense to replace your roof before going solar.
» SHOULD YOU: Replace your roof before going solar?
How can I pay for solar panels?
Paying cash for solar panels is great if you can afford it. You don’t have to worry about paying interest over time. But that’s not an option for everyone. If you’re worried about the upfront costs of going solar, you might consider leasing panels or entering a power purchase agreement (PPA).
Many people finance solar panels. A solar loan works a lot like any other type of loan. There’s an application and approval process, and you pay it back over time with interest. If you get a solar loan or lease, always ask:
- Is there a down payment?
- How much will I pay per month?
- When will monthly payments increase, and by how much?
» SOLAR PANELS: Lease vs. buy
Compare solar installation companies
From panel types to permits, installing a solar system involves many factors. Some companies, like Sunrun, help you tackle installation, permitting paperwork and tax incentive applications. You could also buy panels from a store like ShopSolar and hire a local solar installer or certified contractors to complete the project. Read our guide to the best solar companies for more.
| Company | Customer rating | Panels | In-house installers | Availability | |
|---|---|---|---|---|---|
 Sunlux | Get Started | 4.0 | REC Solar, Qcells, Apto |  | California |
 Freedom Power Solar | Get Started | 4.2 | Maxeon, Mission Solar, Qcells | | Texas and Florida |
 Project Solar | Learn More | 4.3 | Qcells, Canadian Solar, Jinko | | Most states |
FAQ
How do solar panels work?
Solar panels are special devices that use energy from the sun to make electricity. They are usually installed on rooftops.
Inside a solar panel are silicon cells, a material found in sand. When sunlight hits the solar panel, the silicon cells absorb the light. This creates an electric current that flows through wires in the panel.
The current travels from the solar panel wires into an inverter box. The inverter changes the current from DC to AC. DC stands for direct current — the type of electricity solar panels make. AC stands for alternating current — the kind of electricity used to power homes. From the inverter, the AC current flows into your home’s electric panel. This lets you use the electricity from the sun to run lights, appliances and everything that needs power.
On very sunny days, solar panels may make extra electricity. If this happens, the extra can flow back into power lines outside. This is called feeding electricity into the grid. At night, when it’s dark, solar panels stop making current. But you can still use electricity from the regular grid.
How efficient are solar panels?
These days, the best solar panels have an efficiency rating between 20% and 22%. This means that, under ideal conditions, 20% to 22% of the sun’s rays that hit the panels will be converted into usable electricity.
Do shade and temperature affect solar panel efficiency?
Shade can reduce the amount of electricity produced by a solar panel. That’s why you should position panels where they will receive maximum sunlight. Because solar cells are connected in a series, even just a little shade on one panel can cease solar production on all other panels. Trim your trees as needed to ensure no shade falls on any part of your solar panels.
Solar panels work best when they’re kept cool and dry. Higher temperatures can reduce a solar panel’s power production by 10% to 25%.
What are Tier 1 solar panels?
Tier 1 status is typically reserved for the largest manufacturers with automated protection and some degree of vertical integration. Small- to medium-scale manufacturers fall into tiers 2 or 3. Tier 1 solar panels are typically more expensive, but they’re not necessarily better in quality.
Do solar panels require maintenance?
Although regular maintenance isn’t necessary for grid-tied systems, routine cleaning is recommended to remove dust, dirt and other traditional contaminants that can affect efficiency. If your area doesn’t receive rainfall, you can wipe off dust with soapy water or by hiring a cleaning service.
» GUIDE: Solar panel maintenance guide
What’s the difference between on-grid and off-grid solar systems?
On-grid systems are connected to the public electricity grid and can draw from or feed into it through net metering. Off-grid systems operate independently of the grid and usually require storage solutions, like solar batteries.
» LEARN: Types of solar grid systems
Do solar panels increase home value?
In many cases, solar panels can increase the resale value of a home. However, it likely isn’t worth it for the increase in your home’s resale value alone.
Do I need any permits to install solar panels?
When it comes to solar panels, local zoning regulations may cover aspects such as setbacks, height restrictions and aesthetic considerations. You might have to rethink your solar plan based on local regulations. For example, Bobby in Colorado said their system “had to get a slight redesign through the city permitting stage.”
Permitting is the process of getting official approval from your local government or building department to install solar panels. It also makes sure the installation meets safety and code requirements.
You might also have to deal with a homeowners association, like one solar customer in Florida told us: “Setting up everything was easy. The biggest time it took was for my HOA to approve the architectural request for the solar panel. Once that was done, it was quick.”
Guide sources
ConsumerAffairs writers primarily rely on government data, industry experts and original research from reputable publications to inform their work. Specific sources for this guide include:
- Solar Energy Industries Association, “Residential Consumer Guide to Solar Energy.” Accessed Feb. 19, 2026.
- Federal Trade Commission, “Solar Power for Your Home.” Accessed Feb. 19, 2026.
- NREL, “Spring 2025 Solar Industry Update.” Accessed Feb. 19, 2026.
