Many features and options of GTBB inverters are the same as for off-grid inverters—some GTBB inverters can be used as off-grid inverters. There will simply be some programming differences to let the inverter know whether it needs to interconnect with the grid.
Lena Wilensky is co-owner of a small RE design and install business, Nunatak Alternative Energy Solutions, in Crested Butte, Colorado. She is a NABCEP-certified PV installer, IREC-certified affiliated master trainer, contract instructor for Solar Energy International, and mother.
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