83
IMI
Isolation Monitor Interrupter
Initialization
Under initialization is understood the part of the loading process of a program, in which the storage
space required for the execution (e.g. variable, code, buffers ...) for the program is reserved and is
filled with initial values.
I
SC
Short Circuit Current
Local utility company
A local utility company is a company which generates electrical energy and distributes it over the
public grid.
MPP
The Maximum Power Point is the point on the current-voltage (I-V) curve of a module, where the
product of current and voltage has it’s maximum value.
NEC
The National Electrical Code (NEC), or NFPA 70, is a United States standard for the safe installation
of electrical wiring and equipment.
Nominal power
Nominal power is the maximum permissible continuous power output indicated by the manufacturer
for a device or a system. Usually the device is also optimized so that the efficiency is at its maximum
in case of operation with nominal power.
Nominal current
Nominal current is the absorbed current in case of electrical devices if the device is supplied with
the nominal voltage and yields its nominal power.
PE
In electric systems and cables a protective earth conductor is frequently employed. This is also
called grounding wire, protective grounding device, soil, grounding or PE (English „protective
earth“).
Photovoltaics (abbr.: PV)
The conversion of PV energy into electrical energy.
The name is composed of the component parts: Photos - the Greek word for light - and Volta - after
Alessandro Volta, a pioneer in electrical research.
Power dissipation
Power dissipation is designated as the difference between absorbed power and power of a device
or process yielded. Power dissipation is released mainly as heat.
PV cell
PV cells are large-surface photodiodes which convert light energy (generally sunlight) into electrical
energy. This comes about by utilization of the photoelectric effect (photovoltaics).
PV generator
System comprising of a number of PV modules.
