FEASIBILITY STUDY OF BIOMASS CO-FIRING TECHNOLOGY USING WOOD PELLET AT COAL FIRED POWER GENERATION IN INDONESIA
CO2 emission is the most dominant emission to contribute in Greenhouse Gas (GHG). Biomass co-firing is one of the methods that chosen to reduce CO2 emission. The Powerplant that studied is a PLTU in Padang, West Sumatra (2 x 112 MW) which is located near the biomass (wood pellet) producer in Kamp...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/86984 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | CO2 emission is the most dominant emission to contribute in Greenhouse Gas
(GHG). Biomass co-firing is one of the methods that chosen to reduce CO2
emission. The Powerplant that studied is a PLTU in Padang, West Sumatra
(2 x 112 MW) which is located near the biomass (wood pellet) producer in Kampar,
Riau. This PLTU is using Circulating Fluidized Bed (CFB) technology.
Technological feasibility includes the application of biomass co-firing in the recent
technology and its modification with biomass substitute of 0,5-2%-mass from the
total coal amount. The biomass that will be studied is wood pellet at 66 USD/ton
while coal price follows DMO pricing which is 70 USD/ton. The Emission
calculation method refers to Pedoman Penyelenggaraan dan Pelaporan
Inventarisasi Gas Rumah Kaca Bidang Energi Sub Bidang Ketenagalistrikan with
IPCC Guideline 2006 as the baseline.
The application of biomass co-firing can reduce CO2 emissions from 1,925 million
tons/year to 1,903 million tons/year. Then reduction of SOx and NOx emissions from
136 and 311 mg/Nm3 to 133 and 307 mg/Nm3, while increasing PM10 from
11.5 mg/Nm3 to 15.4 mg/Nm3. However, SOx, NOx and PM10 emissions are still
below the thresholds of 550, 550 and 100 mg/Nm3 respectively. The Net Present
Value (NPV) will be positive when implementing biomass co-firing with a biomass
ratio of 2%-mass resulting NPV of 7.781 USD using a discount rate of 6,75% over
10 years operating period. Internal Rate of Return (IRR) at biomass ratio 0,5–2%-
mass respectively 2,15%, 4,44%, 6,37% and 9,13%. The maximum IRR value for
PLTU facilities according to PLN guidelines is 11%. The Levelized Cost of
Electricity (LCoE) from implementing biomass co-firing is 101 USD/MWh for a
2 x 112 MW PLTU. Meanwhile, currently the electricity tariff in Indonesia is IDR
1.500/kWh or 94 USD/MWh. |
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