scholarly journals Life Cycle Assessment and Economic Analysis of Biomass Energy Technology in China: A Brief Review

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1112
Author(s):  
Shuangyin Chen ◽  
He Feng ◽  
Jun Zheng ◽  
Jianguo Ye ◽  
Yi Song ◽  
...  

This study describes the technological processes and characteristics of biomass direct combustion power generation, biomass gasification power generation, biomass mixed combustion power generation, and biomass biogas power generation in terms of their importance and application in China. Under the perspective of environmental and economic sustainability, the life cycle assessment (LCA) method and dynamic analysis method based on time value are used to simulate and evaluate the environmental loads and economic benefits of different power generation processes. By comparing with coal-fired power generation systems, the environmental and economic benefits of different biomass power generation technologies are illustrated. The results shows that biomass gasification power generation has the best environmental benefits, with a total load of 1.05 × 10−5, followed by biomass biogas power generation (9.21 × 10−5), biomass direct combustion power generation (1.23 × 10−4), and biomass mixed combustion power generation (3.88 × 10−4). Compared with the environmental load of coal-fired power generation, the reduction rate was 97.69%, 79.69%, 72.87%, and 14.56% respectively. According to the analysis of the technical economy evaluation results, when the dynamic pay-back period and IRR (internal rate of return) were used as evaluation indicators, the biomass direct combustion power generation has the best pay-back period (7.71 years) and IRR (19.16%), followed by the biogas power generation, with higher dynamic payback period (12.03 years), and lower IRR (13.49%). For gasification power generation and mixed-combustion power generation, their dynamic payback period is long, and the IRR is low. If net present value (NPV) is selected as the evaluation index, the biogas power generation appears to be the best because its net present value per megawatt is 11.94 million yuan, followed by direct combustion power generation (6.09 million yuan), and the net present value of mixed-combustion power generation and gasification power generation is relatively low. Compared with coal-fired power generation, direct combustion power generation and biogas power generation present significant economic benefits.

2020 ◽  
pp. 0958305X2093038 ◽  
Author(s):  
ABM Abdul Malek ◽  
M Hasanuzzaman ◽  
Nasrudin A Rahim ◽  
Yusuf A Al–Turki

Biomass gasification based power plants can play an important role in power sector in Malaysia with her abundant agricultural and forest resources. In this research energy and economic feasibility, and environmental impact of biomass gasification power plant has been analyzed and assessed for sustainable power generation in Malaysia, the plant being a clean development mechanism supported project. Gasification based power generation with a dual fuel internal combustion engine is found more biomass combustion power plant. But, the annual fuel cost is significantly higher with gasification plant claiming MYR 10 million/y for a generation of 67,500 MWh. The net present value, internal rate of return, and PBP for a 10-MW gasification based dual fuel internal combustion engine power plant without loan financing using empty fruit bunch pellet as biomass; with CER issued at USD16/tCO2; and without loan financing provides net present value, internal rate of return, and PBP of MYR 19.68 million, 11.90%, and 6.05 y, respectively. With a loan financing at 3% per year with CER still be effective the net present value, internal rate of return, and PBP is estimated to be MYR 7.03 million, 3.97%, and 11.78 y, respectively. However, if a 60:40 debt equity is applied then the project net present value, internal rate of return, and payback period seen to improve slightly. The net present value attains a positive value of MYR 3.6 million. Internal rate of return and PBP values are found to be 7.08% and 8.27 y, respectively. The emission reduction achieved with the plant is 17,863 t CO2/y, 206 t SO2/y, 90 t NOx/y, and 10.37 t CO/y, respectively. Energy efficiency and tariff policy have been found to have highest impact on economic profitability of gasification based power generation units.


2020 ◽  
Vol 194 ◽  
pp. 02022
Author(s):  
Zengqiang Zhang ◽  
Ming Gao ◽  
Gaoshan Fu ◽  
Yelin Xu ◽  
Chaoshan Xin

Clean energy for power generation and heating is an important route for clean energy consumption in the northern regions with abundant wind and solar resources. However, in the promotion of clean heating projects, there are problems such as high investment costs and high pressure from government financial subsidies. Therefore, it is urgent to explore new economically feasible business models suitable for clean energy power generation and heating. This paper first proposes a new business model of clean energy power generation and heating under the BOO operation mode of the PPP business model. Secondly, from the perspective of investment value, the net present value method is used to analyze the economic benefits of the project, and the cash flow of the clean energy power generation and heating project is analyzed. Finally, combined with actual cases in a certain area in Xinjiang, the net present value method is used to analyze the calculation examples, verify the economic feasibility of the proposed business model, and provide guidance for the further promotion of clean energy power generation and heating projects.


2020 ◽  
Vol 19 (2) ◽  
pp. 263
Author(s):  
Richard Antony Suatan ◽  
Ida Ayu Dwi Giriantari ◽  
I Wayan Sukerayasa

Pembangkit listrik tenaga mikrohidro (PLTMH) di Banjar Dinas Mekar Sari, telah dibangun oleh kelompok masyarakat secara swadaya pada tahun 1980. Dengan penggunaan teknologi yang tradisional mengakibatkan efisiensi PLTMH rendah, sehingga perlu dilakukan perencanaan ulang bagi PLTMH Banjar Dinas Mekar Sari agar dapat beroperasi lebih optimal. Salah satu faktor yang sangat penting dalam perencanaan yaitu faktor finansial/ekonomi. Faktor ini akan digunakan untuk menilai suatu perencanaan apakah layak dibangun atau tidak. Parameter yang digunakan dalam menentukan faktor ekonomi yaitu Net Present Value (NPV, Internal Rate of Return (IRR), Benefit to Cost Ratio (BCR), Life Cycle Cost (LCC), dan Break Even Point (BEP). Telah dilakukan analisis kelayakan ekonomi untuk perencanaan PLTMH Banjar Dinas Mekar Sari diperoleh, BCR sebesar 1,05 dan 0.79 serta nilai NPV sebesar Rp3.320.076.318 dan Rp2.520.526.334 bernilai positif, dan besarnya nilai IRR 13% dan 11% melebihi tingkat Expected Annual Rate of Return Indonesia yang sebesar 11,4%. Serta besarnya BEP unit yang harus dijual untuk mencapai titik cash flow bernilai Rp.0 sebesar 3.783.633.30 kWh, dan besarnya payback period pada proyek ini yaitu 5 tahun 3 bulan. Jadi dilihat dari parameter ekonomi yang ada maka perancangan PLTMH di Banjar Dinas Mekar Sari layak dari segi parameter ekonomi.


2019 ◽  
Vol 4 (1) ◽  
pp. 75-80
Author(s):  
Christopher Udoka ◽  
Barinyima Nkoi ◽  
Felix E. Oparadike

The aim of this research is to compare the economic benefits of various types of power generating technologies such as gas turbines, wind turbines and solar energy that is suitable for power producing plants in Nigeria. The study conducts economic assessment by developing a data-intensive spread-sheet-based model. The model estimates the unit cost of electricity generated by a 10MW capacity solar photovoltaic system (PV), Wind turbine and Gas Turbine. Comparison based on investment cost and capacity charge indicated that the levelized cost of electricity (LCOEsolar) by solar PV was found to be $0.05188 per kWh with a net present value of (-$3,520,003), (LCOEwind), by Wind turbine was found to be $0.0732per kWh or with a net present cost of (-$24,486,076), while (LCOEgas) by Gas turbine was found to be $10.07214 per kWh or with a net present value of ($11,813,136). Results obtained with reference to LCOE showed that solar PV has the lowest cost of power generation, followed by gas turbine, and then wind turbine. Consequently, comparison based on decision for economic and preferable energy to invest in as well as the annual return the investment is projected to generate indicated that the internal rate of return (IRR) for both solar PV and wind turbine was found to be negative with a simple payback period of 14 and 35 years respectively, while internal rate of return (IRR) for gas turbine was found to be 18.67% with 5 years payback period. Hence, result obtained with reference to IRR and SPBP showed that gas turbine is the most economic and preferable energy generating technology to invest in since it is projected to generate 18.67% annual return from the investment in a minimum of 5 years period as compared to solar PV and wind turbine. Although natural gas-based power generation has lower upfront costs but it is vulnerable to volatile fuel prices, whereas electricity generation from renewables has higher upfront costs but provides electricity at costs that are highly predictable.


2017 ◽  
Vol 13 (3) ◽  
pp. 240
Author(s):  
Novdin M Sianturi

Abstrak: Pengelolaan sampah di Kota Pematangsiantar masih bertumpu pada pendekatan akhir (kumpul-angkut-buang), dengan tingkat pelayanan yang rendah, sehingga untuk meningkatkan pelayanan sampah, perlu dilakukan pemilahan di tempat penampungan sementara (TPS). Penelitian ini bertujuan untuk mengkaji sistem pengelolaan sampah dengan melakukan pemilihan di TPS dapat meningkatkan pelayanan aset persampahan sampai tahun  2015 secara teknis operasional dan dari aspek keuangan. Analisa teknis operasional aset pengelolaan sampah mulai dari pewadahan, pengumpulan dan pengangkutan sedangkan analisa keuangan dan analisa kelayakan menggunakan Net Present Value, Internal Rate of Return, Benefit/Cost Ratio, dan Payback Period. Dari hasil analisa tersebut diperoleh suatu sistem pengelolaan sampah dengan pemilihan di TPS berdasarkan zona pelayanan dengan skala prioritas secara bertahap daritahun 2013-2017, dapat meningkatkan cakupan pelayanan sampah eksisting rata-rata 6,69 %, cakupan pelayanan TPS eksisting rata-rata 8,29 %, dan cakupan pelayanan truk pengangkut sampah eksisting rata-rata 12,03 %. Investasinya layak, diperoleh Net Cashflow pada tahun 2020 sebesar Rp 1.720.242.284,-, NPV suku bunga 15 % bernilai positif, IRR > MARR 15 %,  B/C Ratio > 1, dan PP 4,7 tahun, lebih pendek dari periode investasi 10 tahun. Dari Metode penelitian ini maka pengumpulan data, observasi lapangan dan pengukuran contoh timbulan sampah dengan sampel 4 TPS perumahan yang terlayani pengangkutan.


2018 ◽  
Vol 3 (2) ◽  
pp. 160
Author(s):  
Halkadri Fitra ◽  
Salma Taqwa ◽  
Charoline Cheisviyanny ◽  
Abel Tasman ◽  
Nurzi Sebrina

Penelitian ini bertujuan untuk melihat kelayakan aspek keuangan usaha grosir sembako Badan Usaha Milik Desa (Nagari) Kamang Hilia Sejahtera di Kenagarian Kamang Hilia Kecamatan Kamang Magek Kabupaten Agam Provinsi Sumatera Barat yang dilakukan pada tahun 2018. Penelitian bersifat deskriptif kuantitatif dengan menggunakan metode cash flow analysis, payback period, net present value, profitability index, internal rate of return, dan average rate of return. Hasil penelitian menunjukkan bahwa nilai net cash flow Badan Usaha Milik Desa (Nagari) Kamang Hilia Sejahtera adalah positif yaitu Rp.21.774.000, nilai payback period adalah 1,15 tahun, nilai net present value positif sebesar Rp.10.680.034,47, nilai profitability index adalah positif 1,37, sedangkan nilai internal rate of return adalah 46,7% dan nilai average rate of return adalah 57,23%. Berdasarkan standar penilaian maka semua metode yang digunakan memberikan kesimpulan bahwa usaha grosir sembako milik Badan Usaha Milik Desa (Nagari) Kamang Hilia Sejahtera dalam kategori layak untuk dilaksanakan.


1970 ◽  
Vol 3 (1) ◽  
Author(s):  
Fikri Fathurahman Aziz

This study aims to analyze financially (net present value, revenue cost ratio, internal rate of return, break event point, return on investment and payback period) feasibility of kampung super chicken farming Mr. Suparlan in Jojog village, district Pekalongan, East Lampung regency. The data used in the form of quantitative and qualitative data sourced from the primary data and secondary data which is then analyzed descriptively. Based on the analysis, it is known that kampung super farm is financially feasible to cultivate. This is indicated by the positive value of net present value (NPV) of Rp 186,568,517, revenue ratio (RCR) 1.59, internal rate of return (IRR) of 135.82%, return on investment (ROI) of 43%, and the value of payback period (PP) of 0.50. Keywords: financial feasibility, kampung chicken, chicken farm


Sign in / Sign up

Export Citation Format

Share Document