Legend (Solar/AverageAnnualSolarResource)

gz_2010_us_040_00_20m_state (10) gz_2010_us_040_00_5m_state (11) kWH/m2/day (12) < 2 2 to 3 3 to 4 4 to 4.5 4.5 to 5 5 to 5.5 5.5 to 6 6 to 6.5 > 6.5