PV electrical basics
Industry Term

DC coupling

DC coupling connects solar and battery equipment on the direct-current side of the system, which can reduce conversion steps in some architectures.
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What does DC coupling mean?

DC coupling connects solar and battery equipment on the direct-current side of the system, which can reduce conversion steps in some architectures.

Why does DC coupling matter in a solar project?

This term affects electrical design, string sizing, code checks, equipment ratings, and safe installation. In solar, the numbers are not decoration; they are the guardrails.

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