Embodiments disclosed include photovoltaic power systems and methods for manufacturing the same. A photovoltaic power system can include a photovoltaic array, a DC to AC inverter, a positive conductor electrically connecting a positive inverter terminal of the DC to AC inverter to the positive array terminal and a negative conductor electrically connecting a negative inverter terminal of the DC to AC inverter to the negative array terminal, a positive-conductor ground electrically connected by a switch to the positive conductor, and a negative-conductor ground electrically connected by a switch to the negative conductor.