What is the typical irradiance value at peak sun?

The typical irradiance value at peak sun is 1000 watts per square meter. This value is significant because it represents the amount of solar energy received per unit area at optimal solar conditions, commonly referred to as peak sun hours. This is the standard benchmark used in solar energy calculations and system design, allowing for estimations of energy production from photovoltaic solar panels.

During peak sun, the sun is positioned directly overhead, and atmospheric conditions are ideal, which means solar panels receive maximum efficiency. This peak irradiance figure (1000 W/m²) is essential for calculating the potential output of solar energy systems, allowing solar installers and engineers to design systems that can produce a specified amount of energy based on geographic and temporal variables.

Understanding this value is crucial for anyone involved in solar power, as it directly affects the sizing and economic viability of solar installations.