Solar fundamentals
Industry Term

Heartbeat Signal

A heartbeat signal is a recurring communication signal used to confirm that a device or system is powered, connected, and behaving normally.

What does Heartbeat Signal mean?

A heartbeat signal is a recurring communication signal used to confirm that a device or system is powered, connected, and behaving normally.

Why does Heartbeat Signal matter in a solar project?

This term helps explain how a PV system is designed, installed, monitored, or operated. A clear definition keeps owners, installers, and inspectors speaking the same solar dialect.