Overview
Porto do Itaqui (Antiga Termomaranhão) is a 360 MW coal power plant located in Maranhão, Brazil. It is operational and contributes to the country's thermal power generation capacity.
Porto do Itaqui (Antiga Termomaranhão) is a coal-fired power plant situated in the state of Maranhão, Brazil, near the Port of Itaqui. With a capacity of 360 MW, it is a medium-sized facility within Brazil's coal power sector, which plays a role in diversifying the nation's energy mix alongside hydroelectric and renewable sources. The plant operates under Brazil's national environmental regulations, including licensing requirements from IBAMA and state-level agencies. Coal power plants in Brazil typically use subcritical or supercritical technology, and this facility likely employs conventional pulverized coal combustion. The plant's location near a major port facilitates fuel import, as domestic coal is limited. As a coal-fired plant, Porto do Itaqui contributes to local grid stability but also has environmental implications, including CO2 emissions and air pollutants such as SOx and NOx. Its proximity to the coast and populated areas necessitates compliance with emission standards and monitoring. The plant supports regional energy demand and industrial activity in Maranhão.
Environmental context
The plant's coal combustion generates CO2, SOx, NOx, and particulate matter, impacting local air quality. Its coastal location near the Port of Itaqui and the city of São Luís requires careful management of emissions and ash disposal. Brazil's regulatory framework, including CONAMA resolutions, sets limits on pollutant emissions, and the plant must adhere to these standards. The facility's age and technology type influence its environmental footprint, with older subcritical units being less efficient and more polluting than modern supercritical or CCGT alternatives.
Frequently asked questions
Porto do Itaqui (Antiga Termomaranhão) is located in the state of Maranhão, Brazil, near the Port of Itaqui, close to the city of São Luís.
The plant has a capacity of 360 MW, making it a medium-sized coal power plant in Brazil.
The plant uses coal as its primary fuel, which is likely imported through the nearby Port of Itaqui.
Coal power plants in Brazil must comply with CONAMA resolutions, which set emission limits for SOx, NOx, and particulate matter. Licensing is required from IBAMA and state environmental agencies.
As a thermal power plant, it provides baseload power and grid stability, complementing Brazil's dominant hydroelectric generation, especially during dry periods.