Termoelectrica Tarapaca: 172.2 MW Coal Power Plant in Chile

Termoelectrica Tarapaca is a coal-fired power plant located in the Tarapaca Region of northern Chile, with a capacity of 172.2 MW. The plant is owned and operated by CELTA and plays a key role in supplying electricity to the region's mining and industrial sectors. As a coal-based facility, it contributes to the country's energy mix, which also includes significant hydroelectric and solar generation. The plant operates under Chile's environmental regulations, which include emission standards for SOx, NOx, and particulate matter. Coal-fired generation in Chile is subject to increasingly stringent air quality rules, particularly in areas with high population density or sensitive ecosystems. The facility's technology is typical of older coal plants, with subcritical boiler design, though specific efficiency and emission control details are not publicly detailed. Termoelectrica Tarapaca provides baseload power to the northern interconnected system (SING), supporting copper mining and other heavy industries. Its location near the coast allows for seawater cooling, reducing freshwater use. The plant's environmental impact is managed through compliance with national emission limits and monitoring programs.

The plant is situated in the Atacama Desert, one of the driest regions on Earth, where water scarcity is a critical concern. Coal combustion releases CO2, SOx, NOx, and particulate matter, contributing to local air quality issues and global greenhouse gas emissions. Proximity to coastal areas may affect marine ecosystems through thermal discharge and cooling water intake. The facility's age and technology (likely subcritical) result in lower efficiency and higher emissions per MWh compared to modern supercritical or CCGT plants.