SAPN : SA Power Networks (South Australia).
Stored energy : The energy available in the storage system to perform physical work through the conversion of its chemical or mechanical energy, stated in kWh or MWh.
Stability : The ability of an electric system to maintain a state of equilibrium during normal and abnormal conditions or disturbances.
Smart grid : Collectively; devices, practices and protocols that enable rich monitoring and situational awareness and flexible and robust control of various parts of or entire power systems under varying conditions. Among other objectives, Smart Grid is expected to reduce peak demand, increase energy efficiency and increase electric service reliability and power quality.
Spilled energy : Energy that is generated from renewable sources that is unable to be used, typically dissipated through a resistor bank. Also includes potential energy generation that has been restrained, i.e. braking of wind turbines to limit generation.
Synchronous : Traditionally energy provided by thermal power plants such as gas or coal. If more power is needed, more is burnt, but adequate warning is needed to meet large variations in demand. On their own renewables cannot provide synchronous power. The 1414 Degrees Tess can provide synchronous power, and therefore when paired with renewables, enables clean synchronous power.