Best solar panel technology has improved dramatically over the last decade. Still, there are many factors that affect the performance of a solar power system, including its location, the orientation of your roof, and more. That’s why it’s important to do your homework before choosing a contractor or purchasing the panels that will be installed on your home, and not just go with what the installer recommends.

The best solar panels are those with high efficiency ratings, a robust warranty and degradation rate, and a low temperature coefficient. The lowest temperature coefficient indicates that the panels will hold up to hot climates without losing much of their efficiency.

Going Solar in Ireland: A Comprehensive Overview of the Top Solar Companies

SunPower has the highest energy efficiency ratings on the market and some of the most extensive warranties. However, its panels are expensive, and homeowners typically purchase them with a lease or solar loan rather than outright cash.

Canadian Solar is an excellent option for value because it offers competitive pricing and quality components. Its TOPHiKu6 series has the lowest degradation rate on the market and is available through multiple solar installers.

LONGi is a solid choice for reliability. Its HiMo 4 series is affordable and has a good energy efficiency rating. It also has the most sizing options, making it an ideal choice for homeowners with higher energy demands.