| PCC | Point of common coupling |
| PES | Power consumed/delivered from/to the energy storage |
| PLim | Acceptable limit of power change in the system not causing deterioration of the electric power quality parameters |
| Pref | Power setpoint at PCC |
| ΔPRES/LOAD | Change in power resulting from the variability of renewable energy sources (RES) generation or variability of the load power |
| SkQ | Short circuit power at the PCC |
| SoC | State of charge the level of charge of a battery relative to its capacity |
| PRES/LOAD_1 min | Average value of RES power/loads within one minute |
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