|Model||Brand||Part #||Watts||Size & Weight||Price Per Watt||Price|
|Astronergy Solar||1977433||345 W||77.17 × 39.06 × 1.57 in
|Astronergy Solar||1977439||365 W||76.93 × 38.98 × 1.57 in
|Canadian Solar||1930029||315 W||65.9 × 39.1 × 1.38 in
|Heliene||9434300||300 W||65.5 × 39.4 × 1.6 in
|Heliene||9434370||365 W||77 × 39 × 1.6 in
|REC||1945660||355 W||67.75 × 40 × 1.18 in
Not sure what parts you need? We also sell solar panel kits for homes and businesses which include everything you need to build a complete solar energy system. We design our systems in-house and guarantee them to be compatible out of the box.
Read our picks for the best solar panels on the market in 2019. Includes recommendations for budget, premium, American-made and mobile/industrial panels.
Going solar is a long-term investment. This article evaluates the average lifespan of solar panels (and other components) to help you calculate the lifetime value of your system.
Looking to install solar yourself? This DIY Solar Timeline walks you through the entire process, with educational resources and videos to help every step of the way.
This Solar Panel Buyer’s Guide will teach you the key factors that influence solar panel pricing and help you pick the best panels for your system.
Need help picking the right solar panels for your photovoltaic system? Here’s what to look for.
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 panel size if you have limited space to build your system. For example, the dimensions of your roof may require you to use one option over the other, based on how the 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.
Solar panel efficiency ratings measure how much sunlight the panel can convert into usable energy. If you compare two panels that are the same size, the higher efficiency panel will produce more power.
High-efficiency panels help you fit more solar into a smaller space. Check the spec sheet to compare solar panel efficiency ratings.
Solar panels come in a broad range of sizes, with most falling between 275W-400W. Smaller 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 panel price by its wattage to find the cost per watt. This will help you figure out which panel represents the best deal, regardless of factors like size and efficiency rating.
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 panels, but the cost per watt is more expensive.
Residential and Commercial Solar Projects, especially if there is limited installation space.
Making polycrystalline 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 panels are gaining in efficiency and will usually have the lowest price per watt.
Residential, Commercial, Utility-Scale Solar Projects
Todd built his own 3 kW solar system to power his Northern California home, where he lives off the grid with his wife and children. Todd and the rest of the Wholesale Solar team are here to answer any questions you have about designing a system that will fit your needs. Give us a call—we’re here to help.