The ideal brightness level for solar panels varies based on many factors, including location, panel type, and time of year. Generally, solar panels perform best under full, direct sunlight conditions, which are approximately 1000 watts per square meter. When an average person considers solar power, they often picture a bright, cloudless day as the only time the technology truly functions. They generate energy as long as photons are available—whether from blazing noon rays or filtered through clouds. This electricity is captured by the cells and can be used to power homes and businesses.
