Zhangjiagang Changyuan Cogen Power Station - Coal-Fired Cogeneration Plant in Jiangsu, China

Zhangjiagang Changyuan Cogen power station is a coal-fired cogeneration facility located in Zhangjiagang, Jiangsu Province, China. With a capacity of 70 MW, it is a small-scale plant within China's vast coal power fleet, which dominates the country's electricity generation. The plant operates as a combined heat and power (CHP) unit, supplying both electricity and thermal energy to nearby industrial users. China's coal power sector is regulated under national emission standards, including the Air Pollution Prevention and Control Action Plan and the Ultra-Low Emission standards, which require coal plants to meet stringent limits for SO2, NOx, and particulate matter. Typical small-scale CHP plants in China use subcritical or circulating fluidized bed boilers. The plant's location in the Yangtze River Delta, a densely populated and industrialized region, means it operates under close environmental scrutiny. The plant's cogeneration capability enhances its overall efficiency compared to standalone power generation, reducing fuel consumption and emissions per unit of energy output. Its role in providing district heating or industrial steam contributes to local energy security and supports the region's manufacturing base. However, as a coal-fired facility, it remains a source of CO2 and local air pollutants, aligning with China's ongoing transition toward cleaner energy sources.

The plant's coal combustion releases CO2, SO2, NOx, and particulate matter, contributing to regional air quality challenges in the Yangtze River Delta. Its proximity to urban and industrial areas increases local exposure to emissions. The plant's small capacity and cogeneration design may improve efficiency but still relies on coal, a high-carbon fuel. China's ultra-low emission standards require advanced pollution control technologies, which this plant likely employs to meet regulatory limits.