Abstract: An integrated photovoltaic (PV) solar array health monitor configured to derive informations relating to the health of a string of PV solar cells. A transmit module 300 switches from a normal mode of operation and to a self-powered monitoring mode of operation and provides a load 318 to the solar cell string. Processor/control logic 308 directs activities of the monitoring process to obtain informations relating to the solar cell string. The informations are converted to a suitable format for transmission at an antenna 336, via a transmitter circuit 316. The transmitted information reflects the health status of the solar cell string.