A Life Cycle Assessment of Cofiring in a Coal Power Plant to Estimate Purchasing Cost of Empty Fruit Bunch Pellets

DOI Web Site 8 References
  • SETIAWAN Arief Ameir Rahman
    Graduate School of Science and Technology, University of Tsukuba, Japan National Research and Innovation Agency (BRIN), Indonesia
  • MUNAWAR Sasa Sofyan
    National Research and Innovation Agency (BRIN), Indonesia
  • ARIESCA Reza
    Graduate School of Science and Technology, University of Tsukuba, Japan Indonesia Coordinating Ministry for Economic Affairs, Republic of Indonesia
  • PURNOMO Deni
    National Research and Innovation Agency (BRIN), Indonesia
  • ISHIZAKI Riaru
    Bandoseifu High School, Bando, Ibaraki, Japan
  • PUTRA Agusta Samodra
    National Research and Innovation Agency (BRIN), Indonesia
  • SIREGAR Kiman
    National Research and Innovation Agency (BRIN), Indonesia University of Syiah Kuala, Indonesia
  • SIDIQ Agus Noor
    PLN UPDL Suralaya Power Plant, Cilegon, Indonesia
  • WILOSO Edi Iswanto
    National Research and Innovation Agency (BRIN), Indonesia
  • AHAMED Tofael
    Faculty of Life and Environmental Sciences, University of Tsukuba, Japan
  • NOGUCHI Ryozo
    Graduate School of Agriculture, Kyoto University

Abstract

<p>This study aims to analyze the potential emission reduction of cofiring 5% energy supplied from oil palm empty fruit bunch (EFB) pellets and to calculate the purchasing price by incorporating the carbon price. A life cycle assessment (LCA) is used with a functional unit of 1 kWh of electricity. The scope of this study comprises the material collection, pellet production, material transportation and power generation. The foreground inventories were gathered from pellet pilot plants in Cibinong, Indonesia, as a case study, supported by relevant background data from the literature. According to this study, utilization of oil palm biomass converted into pellet for cofiring offer a promising solution for global warming potential (GWP) mitigation, in which 0.1 kg CO2eq/kWh or 8.57% CO2eq emissions can be reduced in a power plant. At 5% cofiring, a typical 500 MW power plant can utilize 112,940 t EFB to substitute 87,118 t coal; therefore, utilizing EFB can reduce GHG emissions by 0.285 Mt CO2eq annually in the power plant. Furthermore, the carbon tax savings obtained from emission reduction can be utilized to elevate the purchasing price of pellets up to 65.34 USD/t (9.83% increase from current practice) to attain it more competitive.</p>

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