PLN IP reduces power plant emissions with ESP and CEMS technology

Jakarta – PT PLN Indonesia Power (PLN IP) applies the latest environmentally friendly technology, namely Electrostatic Precipitator (ESP) and Continous Emission Monitoring System (CEMS). The application of this technology is to ensure that exhaust emissions from generation operations have been minimised as much as possible.

PLN IP President Director Edwin Nugraha Putra said using environmentally friendly technology is a form of support to the government in reducing air pollution.

He explained in a written statement CEMS is a technology used to monitor plant emissions continuously so that emissions coming out of the chimney can be monitored in real-time and ensure that they do not exceed the ambient air quality standards set by the Ministry of Environment and Forestry (LHK).

In the Greater Jakarta area, all PLN IP plants ranging from PLTU Suralaya 1-7, PLTU Pelabuhan Ratu, PLTGU Priok, PLTU Labuan, PLTU Lontar, and PLTU Suralaya 8 have been equipped with this latest technology.

Eco-friendly technology

Meanwhile, ESP in PLTU is an environmentally friendly technology designed to filter and capture dust from flue gas emissions with a very small size (<2 micrometres) up to 99.9 per cent, as well as other pollutants (NOx and SOx).

“The various efforts have improved ambient air quality around power plant sites in Jakarta and Banten. The PM 2.5 parameter around the power plant site shows a downward trend and is still below the Ambient Quality Standard (BMA) set by the government,” Putra said.

The Ministry of Environment and Forestry sets the quality threshold for power plant emissions at 550 mg/Nm3 (milligrams per standard cubic metre) for SO2 and NOx parameters and 100 mg/Nm3 for particulate parameters in coal-fired power plants. While for PLTGU (Gas), 150 mg/Nm3 for SO2 parameters, 400 mg/Nm3 for NOx parameters and 30 mg/Nm3 for particulate parameters.

The results of CEMS monitoring as of 15 August 2023 of the SO2, NOx, PM and Hg parameters of the plants operated by PLN IP are below the emission quality standards per provisions of the Ministry of Environment and Forestry related to the Emission Quality Standards for Power Plants.

Observers say most of the pollution that keeps the air in Jakarta and surrounding areas at extremely poor health levels is caused by power plants around the capital. According to the Ministry of Health, the number of ARI cases until the end of August 2023 reached more than 200,000 cases, compared to an average of 100,000 cases at the beginning of the year. (Hartatik)

Banner photo: PLN Indonesia Power (IP) President Director, Edwin Nugraha Putra, monitors the emissions of PLN IP’s power plants through the operational monitoring dashboard, which is integrated with the Ministry of Environment and Forestry in real time to ensure that exhaust emissions from power plants are in accordance with the quality standards set by the Government. (Source: PLN IP)

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