This part of IEC 60364 applies to the electrical installation of PV systems. The equipment of a PV system, like any other item of equipment, is dealt with only so far as its selection and application in the installation is concerned. A PV installation comprises of all equipment from PV modules(s) up to the connection point to other parts of the installation e.g. a distribution board or the utility supply point (point of connection). It may include requirements on electrical installation resulting from the installation of PV power supply installations. Requirements are included relating to the possible installation of energy storage sy stems (e.g. batteries). Requirements are also included for PV installations for island mode operation described in IEC 60364-8-82. NOTE 1 – The abbreviation “PV” is used for “Photovoltaic”. Photovoltaic installations are, hereafter, known as PV installations. NOTE 2 – Additional requirements for PV system floating on water are under development. See Bibliography.