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View all search resultsPLN unit to test biomass mixing on 15 coal power plants
“Consumers want to have reliable, cheap and eco-friendly electricity from PLN. We’re trying to develop the biomass’ potential based on the people’s economy through utilizing wood products waste such as sawdust and woodchips."
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tate electricity company PLN’s subsidiary, PT Pembangkitan Jawa Bali (PJB), aims to complete biomass mixing tests on its 15 coal-fired power plants by the end of this year as the company vows to reduce its greenhouse gas footprint, an executive says.
Head of PJB's electricity technology development division, Ardi Nugroho, said on Thursday that the company had conducted the bio-energy mixing study on 11 power plants and was planning to run tests on four other power plants this year.
“Consumers want to have reliable, cheap and eco-friendly electricity from PLN. We’re trying to develop the biomass’ potential based on the people’s economy through utilizing wood products waste such as sawdust and woodchips,” he said during a press conference.
Co-firing wooden pallets and sawdust with coal in powerplants, also known as biomass mixing, has been proven to lower the amount of greenhouse gas emissions such as carbon dioxide (CO2), nitrogen oxide (NOx) and sulfur dioxide (SO2) according to PJB’s study.
The study shows that a 20 percent mix of biomass could reduce a coal power plant’s CO2 emissions by up to 32 percent to 696 grams per kilowatt (g/KWh), while a 40 percent biomass mix could reduce CO2 emissions by 52 percent to 418 g/KWh.
“We have been implementing the co-firing technique at Paiton I and II power plant since June and have been able to produce 4,000 megawatts [MW] of clean energy and consumed 3,800 tons of sawdust,” Ardi said.
Based on the tests conducted at the Paiton coal power plant in East Java, a 5 percent mix of sawdust could also reduce SO2 emissions from 536.2 mg/Nm3 to 285 mg/Nm3, while NOx emissions decreased from 424.4 mg/Nm3 to 267.4 mg/Nm3.
