Glossary Of Solar Terms

240 V
240 volts AC – a lethal voltage
AC
alternating current
Array
A number of PV modules electrically interconnected
BOS
Balance of system
Circuit Breakers
An electrical protection device that automatically switches to off when overloaded
DC
Direct current
Fuses
Protection devices that break the overload by burning a wire inside their casing – must be replaced when operated
GC
Connected to the mains power grid
Heatsink
Finned steel to help dissipate heat
Insulated
Prevents electrical shorting
Integrity
Components working correctly and in harmony
Inverter
A solar inverter is a device that transforms DC battery or solar panel voltage into mains type AC power; suitable for use by regular appliances. A solar inverter is an integral part of a system, but attention to this aspect is often overlooked. You can have the best solar panels available, but if your solar inverter is of poor quality, overall system performance can be greatly impacted.
Isolate
Cut off electrically
LED
Light-emitting diode
Live
Carrying an electrical current
Loads
Appliances drawing electricity
Low Voltage (LV)
120V DC, 50V AC or greater
Modules
Photovoltaic cells connected in series and sometimes parallel to provide required power
Open Circuit
Voltage across PV array when there’s no load
Other Components
Includes regulators, inverters, cables, control board and protection equipment
Photovoltaic
Electricity produced from the sunlight
RCD
Residual current device
Residual Current Devices
Circuit breaker triggered by an electrical short to earth
Renewable Energy
Renewable energy is energy which comes from natural resources.
Renewable energy sources include wind, solar, biomass, geothermal and hydro, all of which occur naturally on our planet.
Renewable energy, generally speaking, is clean energy and non-polluting. Many forms do not emit any greenhouse gases or toxic waste in the process of producing electricity. It is a sustainable energy source which can be relied on for the long-term. Renewable energy is cost-effective and efficient.