DC Coupled Battery Storage System

What is DC coupled system ?

The term DC coupling simply refers to the way solar panels are connected/linked to a battery system.

It is the most common method of transforming DC power into AC power, by feeding Solar Panels directly into a Hybrid Inverter, that in turn converts the power to pure sine AC voltage.

DC coupled battery systems were once largely used only for Off-Grid living and remote power systems, over the decades hybrid (solar & battery) inverter technology has advanced rapidly and led to the development of new AC coupled energy storage configurations that are a little less efficient at converting the DC power to AC for general Energy Consumption.

Single Phase Solar Inverter Wiring.

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DC coupled systems are far from dead, in fact charging a battery system using DC charge controllers or modern MPPT Charges & DC coupled hybrid inverters is still the most efficient method available.

If you were sold a Solar Only Inverter, you can still  benafit The

As off-grid systems became larger and more advanced, DC coupled systems evolved as the preferred configuration using multi-mode inverter/chargers coupled with one of more inverters.

IMPORTANT NOTE: System installers should ONLY install DC Isolator Switches on DC Electricity, as AC switches are more susceptible to Arcing if used for DC power, as AC Switch terminals are closer together, where DC terminals are further apart, the cost a little more.