Show/Hide Toolbars

HOMER Grid 1.10

Navigation: Glossary

Solar Absorptance

Scroll Prev Top Next More

HOMER Logo


The solar absorptance of a surface is the fraction of the sun's radiation that the surface absorbs.

Solar absorptance is a factor in the calculation of the PV array temperature. Because it is relatively unimportant, rather than having you enter it, HOMER uses the assumption suggested by Duffie and Beckman (1991) that the product of the solar absorptance and the solar transmittance is 0.9 or 90%.

See also

Solar Transmittance

How HOMER Calculates the PV Cell Temperature

The Homer Support site has a searchable knowledgebase and additional support options. HOMER Online contains the latest information on model updates, as well as sample files, resource data, and contact information.UL LLC © 2022