Analisis Carbon Footprint Co-Firing Biomassa PLTU Cfb 100 Mw

Wandria, Eko Nur (2026) Analisis Carbon Footprint Co-Firing Biomassa PLTU Cfb 100 Mw. Masters thesis, Institut Teknologi Sepuluh Nopember.

Text 6010241029-Master_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (7MB) | Request a copy

Abstract

Sektor ketenagalistrikan Indonesia masih bergantung pada PLTU batu bara, sehingga upaya penurunan emisi gas rumah kaca (GRK) perlu dilakukan tanpa mengganggu keandalan pasokan listrik. Di tengah peningkatan kebutuhan energi dan target transisi menuju sistem energi rendah karbon, pemanfaatan biomassaa sebagai campuran bahan bakar PLTU batu bara menjadi salah satu altenatif mitigasi emisi. Penelitian ini bertujuan untuk menganalisis carbon footprint dari implementasi co-firing biomassaa pada PLTU bertipe boiler CFB dengan kapasitas 100 MW menggunakan pendekatan Life Cycle Assessment (LCA) dengan batas sistem craddle-to-gate. Penelitian meganalisi carbon footprint berdasarkan emisi gas rumah kaca dari selurh kegiatan proses biomassa dan batu bara mulai dari bagaimana biomassa dan batu bara di dapatkan, di oleha, dan di transportasi ke PLTU hingga proses pembakaran di PLTU. Skenario yang dianalisis meliputi 100% batu bara sebagai baseline, kayu karet dengan replainting, kayu karet tanpa replainting, empty fruit bunch (EFB), dan kayu gamal berbasis land use change pada lahan marginal. Hasil penelitian menunjukkan Skenario baseline dengan 100% batu bara menghasilkan carbon footprint sekitar 1,02 ton-CO₂eq/MWh. Co-firing kayu karet dengan replanting mampu menurunkan carbon footprint menjadi 0,880 ton-CO₂eq/MWh atau 13,97% lebih rendah, sedangkan EFB menghasilkan nilai terendah, sekitar 0,86 ton-CO₂eq/MWh. Biomassa kayu gamal dari lahan marginal juga menurunkan carbon footprint menjadi 0,898 ton-CO₂eq/MWh atau 11,95% lebih rendah dibandingkan baseline. Sebaliknya, kayu karet tanpa replanting meningkatkan carbon footprint menjadi 1,21 ton-CO₂eq/MWh akibat kehilangan cadangan karbon lahan. Dari aspek ekonomi, hasil penelitian menunjukkan bahwa manfaat penurunan emisi dari penerapan co-firing tidak selalu diikuti oleh penurunan biaya bahan bakar, karena setiap jenis biomassa memiliki karakteristik harga, kebutuhan pengolahan, dan rantai pasok yang berbeda. Namun, reduksi emisi yang dihasilkan tetap memberikan nilai tambah melalui potensi pengurangan kewajiban pajak karbon dan peluang pemanfaatan mekanisme carbon pricing.
==================================================================================================================================================
The Indonesian electricity sector still relies on coal-fired power plants, so efforts to reduce greenhouse gas (GHG) emissions need to be made without disrupting the reliability of electricity supply. Amid the increasing energy demand and the target of transitioning to a low-carbon energy system, the utilisation of biomass as a fuel blend in coal-fired power plants has become one of the alternatives for emission mitigation. This study aims to analyse the carbon footprint of implementing biomass co-firing in a 100 MW CFB boiler power plant using a Life Cycle Assessment (LCA) approach with a cradle-to-gate system boundary. The research analyses the carbon footprint based on greenhouse gas emissions from all activities involved in the biomass and coal processes, starting from how biomass and coal are obtained, processed, and transported to the power plant, up to the combustion process in the power plant. The scenarios analysed include 100% coal as the baseline, rubber wood with replanting, rubber wood without replanting, empty fruit bunch (EFB), and gamal wood based on land use change on marginal land. The research results show that the baseline scenario with 100% coal produces a carbon footprint of around 1.02 tons-CO₂eq/MWh. Co-firing rubber wood with replanting can reduce the carbon footprint to 0.880 tons-CO₂eq/MWh or 13.97% lower, while EFB produces the lowest value, around 0.86 tons-CO₂eq/MWh. Biomass from gamal wood on marginal land also reduces the carbon footprint to 0.898 tons-CO₂eq/MWh or 11.95% lower compared to the baseline. Conversely, rubber wood without replanting increases the carbon footprint to 1.21 tons-CO₂eq/MWh due to the loss of land carbon reserves. From an economic aspect, the research results show that the benefits of emission reduction from the application of co-firing are not always accompanied by a decrease in fuel costs, as each type of biomass has different price characteristics, processing needs, and supply chains. However, the emission reductions achieved still provide added value through the potential reduction of carbon tax obligations and opportunities for utilising carbon pricing mechanisms.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Co-firing, biomassa, carbon footprint, emisi GRK, Co-firing, biomassa, carbon footprint, greenhouse gassess emissions
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD195.B56 Biomass energy
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26101-(S2) Master Thesis
Depositing User:	Eko Nur Wandria
Date Deposited:	07 Jul 2026 07:11
Last Modified:	07 Jul 2026 07:11
URI:	http://repository.its.ac.id/id/eprint/134397

Actions (login required)

View Item