Energy storage system and method of operation thereof

A method of operation of an energy storage system, the method comprising:

• monitoring an amount of power of a new and renewable energy power plant;
• determining an operation mode of an energy storage device based on a result of monitoring a reference capacity of a line connected to the new and renewable energy plant and the amount of power;
• controlling a power capacity flowing through the line according to the operation mode;
• obtaining history information on the amount of power produced by the new and renewable energy power plant;
• predicting an amount of power corresponding to a condition, which is based on a storage capacity of the energy storage device and the reference capacity of the line, of a new and renewable energy power plant to be newly installed using the condition and the history information;
• and
• generating modeling information including information about a type of the new renewable energy power plant to be newly installed and an operational schedule corresponding to the type, based on the predicted amount of power.

A power system comprising:

• a new and renewable energy power plant;
• a line connected to the new and renewable energy power plant and configured to supply generated power to an electrical power system;
• and
• an energy storage system that is connected to the line and is configured to monitor an amount of power of the new and renewable energy power plant, determine an operation mode of an energy storage device based on a result of monitoring a reference capacity of the line and the amount of power, and control a power capacity flowing through the line according to the operation mode,
• wherein the energy storage system is configured to:
• obtain history information on the amount of power produced by the new and renewable energy power plant;
• predict an amount of power corresponding to a condition, which is based on a storage capacity of the energy storage device and the reference capacity of the line, of a new and renewable energy power plant to be newly installed using the condition and the history information;
• and
• generate modeling information including information about a type of the new renewable energy power plant to be newly installed and an operational schedule corresponding to the type, based on the predicted amount of power.