To decode which of the hundreds of solar panels is the best a few questions must first be answered about what one is trying to achieve. The simple answer is that the best warranty, the highest efficiency, and best performing solar PV panel is the SunPower panel, followed closely by the LG panels. That being said, not everyone may need the best. If a system of average panel quality will still produce all the electricity you need and fit in your limited space, perhaps saving some money on the cost is best. Or perhaps the best for you is something in the middle. “The best” is not always the simple answer as many variables play into the equation.