電池

"Battery" refers to Taipower's grid-connected battery energy storage systems as a reporting category. These systems can charge and discharge rapidly to provide frequency regulation and reserve capacity services, rather than representing one specific site.

"Battery" is not a single power plant but a statistical category covering the discharge of all grid-connected "energy-type battery energy storage systems" in Taipower's system. Its listed capacity is the hourly awarded capacity from the "eReserve" dynamic regulation reserve service transacted through the electricity trading platform, so the figure changes hour by hour with market results rather than representing one fixed installation.

電池 (Energy Storage) currently reports a net generation of -435.3 MW across 2 unit(s), against an installed capacity of 853.4 MW (-51% utilization).

This category mainly reflects discharge from battery energy storage systems, which can respond to grid frequency changes within seconds to minutes. It is used for automatic frequency control (AFC) and peak shaving, making it a key tool for grid flexibility as intermittent wind and solar capacity grows. Charging (the mirror-image "storage load") is tracked separately and is not included in this subtotal.

As wind and solar penetration rises, the grid's need for fast-response frequency regulation grows in tandem, making energy storage one of the fastest-growing categories in recent years — typically deployed as containerized battery units near substations or existing power plants. Storage capacity remains far smaller than gas or coal, but its role in maintaining grid stability is becoming increasingly important.