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10. Abbreviation
LCD
Liquid Crystal Display
LED
Light Emitting Diode
MPPT
Maximum Power Point Tracking
PV
Photovoltaic
Vdc
Voltage at the DC side
Vac
Voltage at the AC side
Vmpp
Voltage at the Maximum Power Point
Impp
Amperage at Maximum Power Point
AC
Alternating Current ( Form of electricity supplied by
Utility Company )
DC
Direct Current ( Form of electricity generated by PV
modules )
VDE 0126-1-1
German standard for establishing suitability for Grid
Connection of the Inverter
VDE-AR-N 4105
German new standard for establishing suitability for Grid
Connection of the Inverter. Including active and reactive
power adjusting function
DC Switch
Switch in the DC Circuit. Disconnects DC source from
Inverter. May be integrated or external to Inverter