Isc

The abbreviation "ISC" in the field of photovoltaics stands for "short-circuit current". This value is an important parameter in characterising the performance of solar PV panels and indicates the maximum current that can be produced by the device when exposed to sunlight. The value represented by the ISC is important for the determination of safety features for a PV system.

The design of a PV system requires consideration of the value of the short-circuit current. High short-circuit current can cause overheating and damage to electrical components, including cables and connections. It is therefore important to know its value and, based on this, to provide the system with protection measures that can cope with the value of the current and minimise the risk of damage.

A short circuit is a dangerous situation that can potentially occur even in a fully functional system equipped with a battery and other devices. Knowing the short-circuit rating of a solar panel allows the installation of appropriate protective features, such as fuses or circuit breakers, to withstand the occurrence of a short circuit.