烏來&桂山&粗坑

The Wulai, Guishan, and Cukeng plants are all located on the upper Xindian River in Wulai District, New Taipei City, forming a long-standing group of plants within the Xindian River hydroelectric system.

烏來&桂山&粗坑 (Hydro) currently reports a net generation of 33.5 MW across 1 unit(s), against an installed capacity of 40.5 MW (82.7% utilization).

Hydro plants can start or stop within seconds to minutes, making them one of the grid's fastest tools for frequency regulation and peak-shaving. The pumped-storage plants around Sun Moon Lake (Mingtan, Daguan) pump water uphill using off-peak electricity and release it to generate during peak demand, effectively acting as large-scale energy storage. Output is highly dependent on rainfall and reservoir levels.

Hydropower was Taiwan's earliest form of electricity generation, with several plants dating back to the Japanese colonial era. Because most viable river sites have already been developed, hydro capacity has grown little in recent decades and its share has been diluted by the rapid expansion of gas and solar. Its low-carbon, fast-dispatch characteristics nonetheless keep it strategically important for grid stability as variable renewables expand.