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Operating performance of full-scale agricultural biogas plants in Germany and China : results of a year-round monitoring program

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اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • Publisher Information:
      MDPI 2021-02-04T08:40:03Z 2021-02-04T08:40:03Z 2021
    • نبذة مختصرة :
      Germany (DE) and China (CN) have different political approaches in supporting the biogas sector. Three German and three Chinese large-scale biogas plants (BGPs) were evaluated as part of a year-round monitoring program. Laboratory methods were utilized to analyze the chemical indicators. Results showed a stable anaerobic digestion process without system failures in all BGPs. The methane yield had a range of 0.23–0.35 m3 CH4/kgODM for DE BGPs and 0.11–0.22 m3 CH4/kgODM for CN BGPs, due to different substrates and working temperatures. Financial analyses indicated that DE BGPs are viable under their current feed-in tariffs contracts. Their financial internal rate of return (IRR) ranged between 8 and 22%. However, all CN BGPs had negative IRRs, indicating that they are financially unfeasible. Risk analyses illustrated that DE BGPs will face financial nonviability if benefits decrease by 9–33% or costs increase by 10–49%, or if a combined worse case (benefit decrease and cost increase) of 5 20% occurs. Incentives to BGP operations are particularly important in China, where the government should consider switching the construction-based subsidy to a performancebased subsidy system to motivate the operators. BGP monitoring is necessary to understand the performance, in addition to briefing policymakers in case a policy reform is needed
    • الموضوع:
      Anaerobic digestion; Biogas; Performance monitoring; Financial analysis; Policy; 660: Technische Chemie; Beitrag in wissenschaftlicher Zeitschrift; Text
    • Availability:
      Open access content. Open access content
      http://creativecommons.org/licenses/by/4.0
    • Note:
      application/pdf
      Applied Sciences
      English
    • Other Numbers:
      CHZHA oai:digitalcollection.zhaw.ch:11475/21517
      https://doi.org/10.3390/app11031271
      https://doi.org/10.21256/zhaw-21517
      info:doi/10.3390/app11031271
      info:doi/10.21256/zhaw-21517
      https://hdl.handle.net/11475/21517
      https://digitalcollection.zhaw.ch/handle/11475/21517
      info:hdl/11475/21517
      urn:issn:2076-3417
      1285669835
    • Contributing Source:
      ZHAW UNIV LIBR
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1285669835
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