PLTGU Cilegon - 903 MW Gas Power Plant in Cilegon, Indonesia

PLTGU Cilegon is a gas-fired power plant located in Cilegon, Banten, Indonesia, with a capacity of 903 megawatts (MW). It is owned and operated by PLN Cilegon Generation Unit, a subsidiary of the state-owned electricity company Perusahaan Listrik Negara (PLN). The plant plays a key role in supplying power to the Java-Bali interconnection system, the largest electricity network in Indonesia. The facility operates on natural gas, a cleaner-burning fossil fuel compared to coal, resulting in lower emissions of sulfur dioxide (SO2), nitrogen oxides (NOx), and particulate matter. As a combined-cycle gas turbine (CCGT) plant, it achieves higher thermal efficiency than conventional steam plants, reducing fuel consumption and CO2 emissions per megawatt-hour. Indonesia's power sector is regulated by the Ministry of Energy and Mineral Resources, with environmental standards aligned to national air quality regulations. PLTGU Cilegon contributes to grid stability and supports the industrial zone of Cilegon, a major steel and petrochemical hub. Its strategic location near the Sunda Strait facilitates fuel supply via LNG terminals. The plant's operation aligns with Indonesia's efforts to diversify its energy mix and reduce reliance on coal-fired generation.

The plant's gas-fired technology results in lower CO2, SO2, and NOx emissions compared to coal plants, but still contributes to greenhouse gas emissions. Its location in an industrial area with high population density requires compliance with Indonesian ambient air quality standards. The facility's water usage for cooling may impact local water resources, though gas plants generally have lower water intensity than coal or nuclear plants.