We would like to share a map of the USA mainland territory showing the Average Sun Peak Hours per day. The map has been split into two, showing western and eastern sides. If you can’t find your location or you need more information regarding the data source, please visit: https://maps.nrel.gov/pvdaq
Sun Peak Hours are refered as the equivalent number of hours (in a day) a location would have an average solar irradiation of 1000 Watt per square meter. In other words, a location with 5 daily Sun Peak Hours receives the equivalent of 5 hours of solar irradiation at 1000 Watt per square meter in one day. Also equivalent to 5000 Wh/sq.m/Day.