International Electrotechnical Commission
Glossary

ENfill factor 
(Abbreviation: FF) (Unit: dimensionless, usually expressed as a percentage, %)

ratio of maximum PV device output power to the product of open-circuit voltage and short-circuit electric current

It is calculated by:

FF = Pmax / (Voc Isc)

NOTE Fill factor is often used to indicate the electricity production quality of a device


TC/SC:82Terms     Info     Publications
Published in:IEC 61836, ed. 2.0 (2007-12) Terms     Info
Reference number:3.4.30

Copyright 2021 IEC, Geneva, Switzerland. All rights reserved