Source: wikibot/irradiance
= Irradiance
{wiki=Irradiance}
Irradiance is a measure of the power of solar radiation or other forms of electromagnetic radiation received by a surface per unit area. It is typically expressed in watts per square meter (W/m²). Irradiance quantifies how much solar energy is available at a given location and time, making it an important parameter in fields such as solar energy, meteorology, and climatology.