Effects of the German Renewable Energy Sources Act and environmental, social and economic factors on biogas plant adoption and agricultural land use change

Yang, Xueqing; Yang, Liu; Thrän, Daniela; Bezama, Alberto; Wang, Mei

doi:10.1186/s13705-021-00282-9

Cited by 17 publications

(6 citation statements)

References 54 publications

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“…New forms of bonuses for biogas plants producing biogas from manure were also introduced. As a result of this tactic, the deliberate cultivation of maize was limited and the variety of crops intended for energy purposes increased [53,54].…”

Section: Biogas Plants In Europementioning

confidence: 99%

Energy Production from Biodegradable Waste as an Example of the Circular Economy

Szyba

Mikulik

2022

Energies

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A growing population, technological progress and economic development result in a constant increase in energy demand. Energy is mostly obtained from fossil energy resources such as coal, natural gas, and crude oil. Burning them leads to air pollution with greenhouse gases (CO2, CH4, NH3 and N2O) and dust (PM2.5 and PM10). They are recognized as the cause of global warming and air pollution. Wind, water, solar and biomass energy are used to eliminate harmful emissions. The latter may come from special plant crops or from biodegradable waste from farming, animal husbandry, the agrifood industry and households. These wastes are transformed into biogas in biogas plants, the basic ingredient of which is methane. Most often, biogas is burned in a cogeneration process, providing electricity and heat. After purification of admixtures, it can be injected into the high-methane gas network or converted into hydrogen in the steam reforming process. In this way, environmentally harmful waste becomes a raw material for energy production, which is an example of a circular economy. The article discusses the functioning of biogas plants in selected EU countries. The current biogas production in Poland was assessed and compared with the production potential of dairy farms. The aim of this article was to show that the production of biogas reduces the emission of greenhouse gases into the atmosphere and the electricity produced from it is not burdened with the cost of purchasing CO2 emission allowances applicable in the EU.

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Section: Biogas Plants In Europementioning

confidence: 99%

Energy Production from Biodegradable Waste as an Example of the Circular Economy

Szyba

Mikulik

2022

Energies

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“…In Europe, biogas is produced in a large number of countries, including Poland [4], Finland [5], Germany [6], Hungary [7]. In particular, more than 1,000 biogas plants were built in Germany from 2000 to 2014 [8]. Some questions connected with the state of biofuel in Ukraine are considered by Stanytsina et al [9], Bogoslavska et al [10].…”

Section: Introductionmentioning

confidence: 99%

Neural network model of investment process of biogas production

Dzhedzhula,

Yepifanova

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The paper forms a neural network model of the investment process of biogas production, which allows increasing the efficiency of the management decision-making process on the feasibility of investing in biogas plants. Biogas plants are becoming widespread in the world, although natural climatic conditions are not favorable for biogas production. But modern technological solutions for insulation of bioreactors, their automation and thermal stabilization, allow obtaining biogas in different latitudes. The construction of biogas plants requires significant capital investment. Therefore, these investments require a detailed feasibility study, including consideration of both technical and economic aspects of biogas production. The authors propose to use the mathematical apparatus of shallow neural networks and create a ten-neuron shallow neural mathematical model with the MATLAB mathematical package, which can serve as a tool to support investment decisions in the implementation of the biogas plant project. The proposed model, in contrast to existing approaches, allows us to take into account both quantitative and qualitative factors, which are obtained analytically, expertly and experimentally. In addition, the proposed model allows combining both economic and technical criteria that affect the decision-making process for investing in the process of biogas production. The calculation of investment attractiveness of introduction of biogas utilization unit for the researched enterprise is given. According to the simulation results, it is determined that the investment attractiveness of the introduction of a biogas plant for the given set of input factors indicates the feasibility of implementing a biogas plant.

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“…This is in part due to changes in the legal landscape, such as the implementation of the German Renewable Energy Act (Ger. EEG), which have created favorable conditions for the expansion of the biogas industry (Yang et al, 2021). Perennial biomass crops such as miscanthus and switchgrass have gained prominence in recent years because of their high biomass yield potential, low input crop cultivation, and provision of ecosystem services.…”

Section: Introductionmentioning

confidence: 99%

Integrating perennial biomass crops into crop rotations: How to remove miscanthus and switchgrass without glyphosate

Lewin,

Kiesel,

Magenau

et al. 2023

GCB Bioenergy

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Perennial energy grasses have gained attention in recent years as a promising resource for the bioeconomy because of their benign environmental profile, high stress tolerance, high biomass yields and low input requirements. Currently, strong breeding efforts are being made to extend the range of commercially available miscanthus and switchgrass genotypes. In order to foster farmers' acceptance of these crops, and especially of novel hybrids, more information is required about how they can be efficiently integrated into cropping rotations, how they can be removed at the end of their productive lifespan, and what effect they have on subsequently grown crops. Farmers in Europe are meanwhile increasingly constrained in the methods available to them to remove these crops, and there is a risk that the herbicide glyphosate, which has been used in many studies to remove them, will be banned in coming years. This study looks at the removal of seven‐year‐old stands of miscanthus and switchgrass over 1 year at an experimental site in Southern‐Germany. Three novel miscanthus genotypes were studied, alongside one variety of switchgrass, and the impact of each crop's removal on the yield of maize grown as a follow‐on crop was examined. A combination of soil tillage and grass herbicides for maize cultivation was successful in controlling miscanthus regrowth, such that yields of maize grown after miscanthus did not differ significantly from yields of maize grown in monoculture rotation (18.1 t dry biomass ha−1). Yields of maize grown after switchgrass (14.4 t dry biomass ha−1) were significantly lower than maize in monoculture rotation caused by insufficient control of switchgrass regrowth by the applied maize herbicide. Although some regrowth of miscanthus and switchgrass was observed in the follow‐on crop maize, complete eradication of both crops was achieved by subsequent winter wheat cultivation.

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Effects of the German Renewable Energy Sources Act and environmental, social and economic factors on biogas plant adoption and agricultural land use change

Cited by 17 publications

References 54 publications

Energy Production from Biodegradable Waste as an Example of the Circular Economy

Energy Production from Biodegradable Waste as an Example of the Circular Economy

Neural network model of investment process of biogas production

Integrating perennial biomass crops into crop rotations: How to remove miscanthus and switchgrass without glyphosate

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