SMA SI 4548-US - Manual (Page 239)

SMA America, LLC 23 Glossary
Operating Manual SI4548-6048-US-BE-en-20 239
Inverter mode
Operating mode of a battery inverter where it supplies the stand-alone grid from the battery energy.
In this operating mode, the battery inverter is especially responsible for the control of frequency and
voltage in the stand-alone grid.
Central inverter
An inverter concept in which all PV modules are connected to each other (in series and/or parallel)
and which uses a single inverter for feeding energy into the utility grid. The low cost of the inverter is
usually offset by the much higher installation efforts required and possible yield losses due to
variations in shading of different PV modules.