than the demand/Load, and release power when the load is higher than the generated power. Thereby compensating for power fluctuations. Using these systems makes it possible for conventional generating units to operate at a constant output which is more efficient and convenient. However, when the power imbalance between supply and demand lasts for a long time, the SMES may get completely discharged. Load frequency control When the load does not meet the generated power output, due to a load perturbation, this can cause the load to be larger than the rated power output of the generators. This for example can happen when wind generators don’t spin due to a sudden lack of wind. This load perturbation can cause a load-frequency control problem. This problem can be amplified in DFIG-based wind power generators. This load disparity can be compensated by power output from SMES systems which store energy when the generation is larger than the load. SMES based load frequency control systems have the advantage of a fast response when compared to contemporary control systems. Uninterruptable power supplies Uninterruptible Power Supplies (UPS) are used to protect against power surges and shortfalls by supplying a continuous power supply. This compensation is done by switching from the failing power supply to a SMES systems which can almost instantaneously supply the necessary power to continue the operation of essential systems. The SMES based UPS are most useful in systems that need to be kept at certain critical loads. Circuit breaker reclosing When the power angle difference across a circuit breaker is too large, protective relays prevent the reclosing of the circuit breakers. SMES systems can be used in these situations to reduce the power angle difference across the circuit breaker. Thereby allowing the reclosing of the circuit breaker. These systems allow the quick restoration of system power after major transmission line outages. Spinning reserve Spinning reserve is the extra generating capacity that is available by increasing the power generation of systems that are connected to the grid. This capacity reserved by the system operator for the compensation of disruptions in the power grid. Due to the fast recharge times and fast alternating current to direct current conversion process of SMES systems, these systems can be used as a spinning reserve when a major grid of transmission line is out of service. SFCL Superconducting Fault Current Limiters (SFCL) are used to limit current under a