How to choose your solar panels in 3 stepsDetermine solar panel efficiency and compare it to the industry average of 16-18%Check solar panel manufacturer warranties against an industry average of 10-25 years.Compare the cost to relative efficiency - efficiency is important, but the most efficient panels aren't always the best value.
[pdf] Key takeawaysSunPower, REC, Panasonic, Maxeon, and Jinko Solar offer the best solar panels.The type of solar panel, power output, efficiency, performance in warm climates, warranty, and price are the key factors to assess when comparing solar panels.The best solar panel for your home can depend on your roof space, shading, and climate.
[pdf] 
