Intensity of solar radiation

When no information about the intensity of solar radiation a value of 1 000 W/m² is adopted.

It is recommended that the local value should be obtained where possible which can be calculated with our solar radiation tool.
According to ERA Report No 88-0108, in clear atmosphere the maximum solar received by a vertical tube is 725 W/m2 and occurs when the altitude of the sun is approximately 32°.

Symbol
$H_{sun}$
Unit
W/m$^2$

Default
1000