The average annual solar radiation value for 道县 Hunan over the past 30 years is 163832 kJ m-2 day-1 (Kilojoules per square meters every day).
In city of 道县 Hunan, the solar energy in January is 8610 kJ m-2 day-1; The solar energy in February is 8792 kJ m-2 day-1; The solar energy in March is 10430 kJ m-2 day-1; The solar energy in April is 13239 kJ m-2 day-1; The solar energy in May is 15013 kJ m-2 day-1; The solar energy in June is 16352 kJ m-2 day-1; The solar energy in July is 20289 kJ m-2 day-1; The solar energy in August is 19898 kJ m-2 day-1; The solar energy in September is 17534 kJ m-2 day-1; The solar energy in October is 13572 kJ m-2 day-1; The solar energy in November is 10703 kJ m-2 day-1; The solar energy in December is 9400 kJ m-2 day-1.
Solar irradiance is the power per unit area (surface power density) received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument. Solar radiation can be captured and turned into useful forms of energy, such as heat and electricity, using a variety of technologies.
Address: 道县, Hunan, 中国.