Solar Panels

Solar panels convert sunlight into electrical current, creating power for your home.
Browse solar panels from major brands like Astronergy, Mission Solar, LG,
Heliene, and more.

Solar Panels

Solar panels convert sunlight into electrical current, creating power for your home.
Browse solar panels from major brands like Astronergy, Mission Solar, LG,
Heliene, and more.

Save Time & Money
FREE Solar Panel Guide

Not sure which solar panel to choose? Our free Solar Panel Guide will help
you select the solar panels that work best for your needs. Everything you need to know about picking the perfect solar panels is right here in this guide.
Download Guide

Save Time & Money
FREE Solar Panel Guide

Not sure which solar panel to choose? Our free Solar Panel Guide will help
you select the solar panels that work best for your needs. Everything you need to know about picking the perfect solar panels is right here in this guide.
Download Guide

Questions? Chat with us!

Brent and his family live on a grid-tied ranch in California, powered by a 5 kW solar panel system he installed himself. Brent and the rest of the Unbound Solar team are here to answer any questions you have about designing a system with solar panels that will fit your needs.
Give us a call—we’re here to help.

The Do-It-Your-Way Solar Guide

We answer all your solar panel questions in one easy-to-navigate Do-It-Your-Way Solar Hub. Ready for total control with more choices and faster payback?

Browse Complete Kits with Solar Panels

Not sure what parts you need? We also sell complete kits including solar panels for homes and businesses which include everything you need to build a complete solar panel system. We design our solar panel systems in-house and guarantee them to be compatible out of the box.

Meet Our Featured Solar Panel Brands

Astronergy Logo

Affordable solar panels with reinsured warranty protection. These are the same panels we use on our office and one of the best values, based on price per watt.
 

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Heliene Inc. Profile

North-American made Mono PERC solar panels for residential and commercial applications.
 

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LG logo

The most efficient, highest wattage 60-cell solar panels we offer. The efficiency comes with a steep premium and these are also the most expensive solar panels we sell. The higher power is ideal if you have a small amount of space to install solar panels, and need to maximize power output.
 

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Mission Solar logo

High efficiency solar panels with advanced mono PERC technology, proudly assembled in the USA
 

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solarland logo

Wide range of small solar panels for RV, Marine, portable, camping, and off-grid industrial power applications. Lots of options ranging from 3w-190w, available in 12V and 24V, and options for CSA Class 1 Division 2 certification for hazardous locations.
 

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Popular Solar Panel Resources

Best Solar Panels Article

What Are the Best Solar Panels on the Market (2020)?

Read our top picks for solar panels on the market in 2020. Includes recommendations for budget, premium, American-made and mobile/industrial panels.

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Solar Panel Cost Guide

Learn about factors that affect solar panel pricing, as well as individual panel prices, complete system prices, and historical pricing trends to see how the cost of solar might change in the future.

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60 vs 72 cell panels

60-Cell vs. 72-Cell Solar Panels: Which One’s the Best?

Most solar panels come in two standard sizes: 60 and 72 cells. Learn the difference between both solar panel options to see which makes sense for your project.

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DIY installation

What Are the Steps for a DIY Solar Panel Installation?

Looking to install solar panels yourself? This DIY Solar Panel Timeline walks you through the entire process, with educational resources and videos to help every step of the way.

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Solar Panel Guide

Solar Panel Guide

This Solar Panel Buyer’s Guide will teach you the key factors that influence solar panel pricing and help you pick the best solar panels for your system.

Learn More

Best Portable Solar

What Are the Best Portable Solar Panels for RVs and Boats (2020)?

Living life on the road? We break down the best solar panels for RVs, boats and other remote/industrial applications.

Learn More

Solar Panels 101

Need help picking the right solar panels
for your photovoltaic system? Here’s what to look for.

Size

Most solar panels for sale today are made of either 60 or 72 PV cells. 60-cell solar panels measure close to 40” x 66”, while 72-cell solar panels are approximately 40” x 78” (give or take an inch based on the manufacturer).

You may care about solar panel size if you have limited space to build your system. For example, the dimensions of your roof may require you to use one solar panel over the other, based on how the solar panel array is laid out on your roof.

This applies to full-sized solar panels for home or business use. We also carry smaller 12V solar panels for RV, marine and remote industrial applications. 12-volt solar panels are available in sizes from 5-160 watts, and select 24-volt panels are available up to 190 watts.

Learn More About Solar Panel Sizes

 

Solar_panel_size_difference


Efficiency

Solar panel efficiency ratings measure how much sunlight the solar panel can convert into usable energy. If you compare two solar panels that are the same size, the higher efficiency solar panel will produce more power.

High-efficiency solar panels help you fit more panels into a smaller space. Check the spec sheet to compare solar panel efficiency ratings.

This applies to full-sized solar panels for home or business use. We also carry smaller 12V solar panels for RV, marine and remote industrial applications. 12-volt solar panels are available in sizes from 5-160 watts, and select 24-volt panels are available up to 190 watts.

Learn More About Efficiency

Effeciency comparison for solar panels


Cost Per Watt

Solar panels come in a broad range of sizes, with most falling between 275W-400W. Smaller solar panels cost less, but they might not necessarily give you the best deal in terms of energy generated per dollar spent.

To compare solar panels on a level playing field, divide the solar panel price by its wattage to find the cost per watt. This will help you figure out which solar panel represents the best deal, regardless of factors like size and efficiency rating.

Use our calculator for a solar panel cost estimate based on your usage. We also maintain a pricing guide to give a side-by-side comparison of the cost of solar panels we currently have in stock.

Read 2020 Solar Guide

Solar Panel Cost Per Watt


Solar Panel Cell Types

monocrystalline solar panel-type-uses high-efficiency mono

Monocrystalline

As the name implies, monocrystalline solar panels are made from a single crystal structure. They are the oldest of the technologies and the solar cells have a uniform flat color. Monocrystalline solar panels are a little more efficient and more expensive. You can install fewer high-efficiency mono solar panels, but the cost per watt is more expensive.

Best Use:

Residential and Commercial Solar Panel Projects, especially if there is limited installation space.

Shop All Mono Panels

Polycrystalline solar panel type uses most affordable poly

Polycrystalline

Making polycrystalline solar panels is cheaper and it’s a newer technology. The silicon cools unevenly and creates many different crystals giving it a less uniform appearance. Polycrystalline solar panels tend to be the most affordable, but they also put out a little less power. Even so, poly solar panels are gaining in efficiency and will usually have the lowest price per watt.

 

Best Use:

Residential, Commercial, Utility-Scale Solar Projects

Shop All Poly Panels

N-Type Solar Cells

N-type cells are doped with phosphorus, which has one more electron than silicon, making the cell negatively charged.

N-type cells are immune to boron-oxygen defects, and as a result, they are not affected by light-induced degradation (LID). As you might expect, these are positioned as a premium option because they degrade less over the life of the panel.

Best Use:

Long term, premium option for; Residential, Commercial, Utility-Scale Solar Projects.

Shop N-Type Panels

Mono-PERC

PERC stands for Passivated Emitter and Rear Cell technologyPERC cells are distinguished by an extra layer of material on the backside of the solar panel, called the passivation layer.

PERC cell technology is gaining traction because the inclusion of the passivation layer doesn’t add huge manufacturing delays or expenses. The efficiency boost more than justifies the extra step in the manufacturing process.

Best Use:

Residential, Commercial, Utility-Scale Solar Projects

Shop All Mono-PERC Panels

Download Your Solar Panel Guide

We’ll teach you the key factors that influence solar panel pricing and help you pick the best panels for your system.