As solar panels-to-buy technology has matured, a number of options have emerged that are capable of generating a significant portion of your home’s energy needs. These include the monocrystalline, polycrystalline and thin-film types. The most common and best-performing solar panels are monocrystalline, which offer efficiency ratings of 20% and up. They are also the most durable, able to withstand extreme temperatures and have the longest lifespans.

Choosing which type of solar panel is right for you will depend on your specific circumstances, including where you live and how much sun your roof gets. In addition, you’ll want to consider the panel’s durability and cost.

A Homeowner’s Guide to Buying Solar Panels: What You Need to Know

When considering a solar panel brand, look for one that offers an initial consultation and site survey to assess your roof’s potential and determine your average energy usage. These assessments typically include in-person or virtual interviews with a company representative and a visual inspection of your rooftop. The rep will also review your latest utility bill to help you determine your average energy consumption and assess your roof’s structural integrity, available space, slope and shading.

Ultimately, the best solar panels to buy will be affordable, efficient and durable. The best brands offer a variety of panel options, excellent degradation rates and solid warranties. They may be a little more expensive than other manufacturers, but they are likely to provide the most value for your investment. Canadian Solar’s HiKu solar panel series, for example, comes in an all-black option that’s a favorite among homeowners and boasts high efficiency ratings, low temperature loss and standard degradation rates.