A Solar Photovoltaic Service Technician performs maintenance (preventative, scheduled, unscheduled) on PV systems in compliance with Department of Energy and related regulations, isolate the PV system (in the case of a PV farm this is done with authorisation obtained from the plant controller); perform fault finding (trouble-shooting), identify deficiencies; analyse information, carry out maintenance, repair (including removing and replacing components), and find solutions to a range of problems. A Solar Photovoltaic Service Technician may be employed either at a photovoltaic farm or at standalone PV installations. Hence, there is the Photovoltaic (PV) Service Technician (PV Farm) and the Photovoltaic (PV) Service Technician (Standalone Installation).