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Feasibility study o...
Feasibility study of using a biogas engine as backup in a decentralized hybrid (PV/wind/battery) power generation system : Case study Kenya
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- Ghaem Sigarchian, Sara, 1979- (author)
- KTH,Kraft- och värmeteknologi,Polygeneration
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Paleta, Rita (author)
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- Malmquist, Anders (author)
- KTH,Kraft- och värmeteknologi
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Pina, André (author)
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(creator_code:org_t)
- Elsevier, 2015
- 2015
- English.
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In: Energy. - : Elsevier. - 0360-5442 .- 1873-6785. ; 90:2, s. 1830-1841
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http://www.sciencedi...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- In this study, a hybrid power system consisting of PV (Photovoltaics) panels, a wind turbine and a biogas engine is proposed to supply the electricity demand of a village in Kenya. The average and the peak load of the village are around 8kW and 16.5kW respectively.The feasibility of using locally produced biogas to drive a backup engine in comparison to using a diesel engine as backup has been explored through a techno-economic analysis using HOMER (Hybrid Optimization Model for Electric Renewables). This hybrid system has also been compared with a single diesel based power system.The results show that the hybrid system integrated with the biogas engine as backup can be a better solution than using a diesel engine as backup. The share of power generation by PV, wind and biogas are 49%, 19% and 32%, respectively. The LCOE (Levelized Cost of Electricity) of generated electricity by this hybrid system ($0.25/kWh) is about 20% cheaper than that with a diesel engine as backup ($0.31/kWh), while the capital cost and the total NPC (Net Present Cost) are about 30% and 18% lower, respectively.Regarding CO2 emissions, using a biogas engine as backup saves 17 tons of CO2 per year compared to using the diesel engine as backup.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Keyword
- Biogas engine
- Decentralized energy system
- HOMER
- Polygeneration
- Rural electrification
- Techno-economic optimization
- Energiteknik
- Energy Technology
Publication and Content Type
- ref (subject category)
- art (subject category)
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