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The CO2 cutting cost of biogas from humanure and livestock manure

Agar, David and Athanassiadis, Dimitris and Pavelka, Béla J (2022). The CO2 cutting cost of biogas from humanure and livestock manure. Sustainable energy technologies and assessments. 53 :Part A , 102381
[Research article]

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The European Union is accelerating its rollout of sustainable energy production and promotion of a circular economy. Electricity from biogas has synergy with energy-policy and rural-development goals yet its economic value is often convoluted. This study assessed the economic potential of biogas electricity using a representative rural case and quantified the cost and level of state support required for viability. The cost of CO2-equivalent emission reductions was determined using the recast Renewable Energy Directive (RED II). The results showed that a feed-in tariff of 0.33 € kWh−1 for green electricity was required for economic feasibility. This yielded a CO2 cutting cost of 251 € t−1. The methane energy potential was 78 467 kWh a−1 from 31 498 kg (dry mass) of substrates, 80% livestock manure and humanure and 20% plant-based. Circular use of the digestate from anaerobic digestion, enabled a nitrogen recovery potential of 1 575 kg a−1. The conclusions reached are that the economic value of the avoided emissions, through the RED II framework, is significant but it does not substantially improve the cost-effectiveness of biogas as an emission-mitigation technology. For biogas plant capacities less than 500 kW, current EU feed-in tariffs do not support economic viability.

Authors/Creators:Agar, David and Athanassiadis, Dimitris and Pavelka, Béla J
Title:The CO2 cutting cost of biogas from humanure and livestock manure
Series Name/Journal:Sustainable energy technologies and assessments
Year of publishing :2022
Number:Part A
Article number:102381
Number of Pages:9
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 207 Environmental Engineering > Energy Systems
Keywords:Renewable energy directive, Feed-in tariff, Anaerobic digestion, Night soil, Rural development, Energy policy
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Type of IDID
Web of Science (WoS)000836448200007
ID Code:28763
Faculty:S - Faculty of Forest Sciences
Department:(S) > Department of Forest Biomaterials and Technology
Deposited By: SLUpub Connector
Deposited On:02 Sep 2022 13:43
Metadata Last Modified:02 Sep 2022 13:51

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