NABCEP ESIP Practice Questions - NABCEP Energy Storage Installation Professional Certification Exam

What is the difference between AC-coupled and DC-coupled energy storage system architectures?

They are the same architecture AC-coupled connects the battery inverter to the AC bus; DC-coupled connects the battery to the DC bus before the inverter AC-coupled is only for off-grid; DC-coupled is only for grid-tied AC-coupled uses higher voltage

Correct Answer:

AC-coupled connects the battery inverter to the AC bus; DC-coupled connects the battery to the DC bus before the inverter

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