Collection: Solar Panels For Sale

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Find the Best Home Solar Panels

Here’s what you need to consider when shopping for solar panels.

Looking for our favorite picks? See our list of top-rated residential solar panels.

Solar Panel Sizes

Solar panels come in two sizes: 60/120 cell or 72/144 cell.

60-cell panels measure about 40” x 66”, while 72-cell panels measure around 40” x 78”. A 72-cell panel contains 12 more cells than a 60-cell panel.

Both sizes are suitable for home rooftops, though most customers choose 60-cell panels for residential projects and 72-cell panels for larger commercial projects or ground mounted solar panel arrays

To choose the right cell count for your solar panels, select the best cost per watt option that fits your roof or ground configurations.

Learn more about 60-cell vs. 72-cell solar panels.

Solar Panel Sizes

Solar Panel Types

Poly and Monocrystalline Composition

Solar panels are composed of cells made of monocrystalline or polycrystalline silicon. Today, most solar panels are monocrystalline.

Mono solar panels can be identified by a dark, even coloring, while poly solar panels are textured and resemble a granite countertop.

Mono solar panels are popular due to higher efficiency; however, poly panels have lower per-watt prices. Mono solar panels also perform better in low-light conditions compared to poly solar panels.

Learn more about mono vs. poly solar panels.

Half-cut Solar Cells

Half-cut solar cells are one of the latest developments in solar technology. They’re traditional solar cells split in half by a laser cutter, designed to prevent energy loss and boost performance.

As electrical currents move through wires and cells, some energy is lost, known as a resistive loss. A half-cut cell reduces resistive loss, therefore improving solar panel output.

Half-cut solar cells are also more efficient in the shade. Panels with half-cut cells require double the wiring, so a shaded cell with lower output is less likely to impact the panel’s overall production capabilities.

Learn more about half-cut solar panels.

Solar Panel Types

Solar Panel Efficiency

Solar panels work by converting the sun’s energy into power for your home.

The average range for solar panel efficiency is 17 to 20%. A solar panel with 19% efficiency, for instance, can convert 19% of the sun’s energy into electricity.

Solar panel wattage output ranges from 310 to 420 or more watts, with an average per watt price of 68 to 75 cents. The number of watts indicates how much power the solar panel produces.

If you have a 320W panel and receive 5 hours of sunlight per day, the panel would produce 1,600 watt-hours, or 1.6 kWh per day (320W x 5 hours). In one year, each panel would generate 550 to 600 kWh.

High wattage output doesn’t necessarily mean better quality or performance. Choose higher efficiency if you’re working with limited space and need fewer panels to get the job done. Otherwise, standard efficiency panels work just as well — at a lower cost.

Learn more: Solar Panel Efficiency Explained

Solar Panel Efficiency

Solar Panel Prices

Solar panel prices vary widely, around $200 to $600 or more per panel. Prices depend on the type of panel (monocrystalline or polycrystalline), manufacturer, cell size and wattage output.

Because every home is different, the total number of solar panels needed for your residence will also vary. Remember to factor in the price of an inverter. You may also need to include nstallation costs (at least $5,000 to $10,000+) if you choose to hire a solar panel contractor or installer.

At GoGreenSolar, we’ll work with you to determine a solar panel setup that fits your budget and energy needs. When you buy solar panels from us, you’ll also receive end-to-end installation support from our in-house team so you don’t have to spend thousands of dollars hiring a professional.

Solar Panel Prices

Solar Panel Warranties

Solar is a significant investment, so it’s crucial to understand how solar panel warranties work.

Product Warranty

A product warranty covers physical defects or faulty manufacturing. Most solar panel brands offer at least a 10-year product warranty, while some name brands provide 20 to 25 years.

Performance Warranty

A performance warranty guarantees that your solar panel will continue to produce close to its intended output throughout the warranty period. All panels, regardless of brand or wattage, decrease output over time, but typically don’t lose more than 10-20% over 25 years.

Learn more: Everything you need to know about solar panel warranties

Example Power Output Degradation

Our Phono Solar 310W Mono 60-Cell Panel, for example, has a 90% power output warranty for 12 years and an 80% power output warranty for 25 years.

If your panels degrade faster than intended, you can work with the manufacturer to get repairs or a replacement under warranty.

Learn more: How long do solar panels last?

Solar Panel Warranties
Why Choose GoGreenSolar?

Why Choose GoGreenSolar?

  • Save thousands of dollars

    Buy solar panels direct and save thousands compared to hiring a professional installer!

  • Get expert support

    GoGreenSolar is the only solar panel distributor to offer expert support via phone or email in addition to affordable wholesale pricing.

  • Experience you can trust

    Our team has years of experience designing PV systems for homes and businesses, so we can ensure you set up your solar panels right the first time.

Learn more: Pros and Cons of DIY Solar

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How much do solar panels cost? Use our easy solar panel calculator to get a quick estimate of how many solar panels you’ll need for your home.
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