Review of concepts for a demand-driven biogas supply for flexible power generation

The share of electricity produced from renewable energy is constantly increasing in Germany and worldwide. The transformation to an electricity system based on renewable sources is characterised by an increasing need for balancing power in order to compensate power supply from fluctuating sources, s...

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Bibliographic Details
Published in:Renewable & sustainable energy reviews 2014-01, Vol.29, p.383-393
Main Authors: Hahn, Henning, Krautkremer, Bernd, Hartmann, Kilian, Wachendorf, Michael
Format: Article
Language:English
Subjects:
Alternative fuels. Production and utilization
Applied sciences
Balance power
Biogas
Biogas storage
Biogas upgrading
Economic data
Electric energy
Electric potential
Electricity
Energy
Energy economics
Exact sciences and technology
Flexible biogas production
Fluctuation
Fuels
General, economic and professional studies
Miscellaneous
Natural energy
Power generation
Renewable energy
Renewable energy system
Solar power generation
Transformations
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Summary:The share of electricity produced from renewable energy is constantly increasing in Germany and worldwide. The transformation to an electricity system based on renewable sources is characterised by an increasing need for balancing power in order to compensate power supply from fluctuating sources, such as solar or wind. Biomass, more precisely energy from biogas, has the potential to generate electricity flexible on-demand. A demand-driven biogas production is vital for balancing power generation and can generally be achieved by biogas storing or flexible biogas production concepts. This study analyses and reviews both concepts regarding their ability to facilitate a biogas supply for short-term and long-term balancing power generation. Results show that a demand-driven biogas supply based on a biogas storing concept is, due to the fast availability of biogas (i.e. biomethane), suitable for the generation of positive secondary and tertiary balancing power. Whereas, long-term balancing power can be provided by flexible biogas production as well as by biomethane, which was injected and stored in the natural gas grid. Basically all reviewed biogas supply concepts that facilitate a shutdown of electricity generation by storing or stopping the biogas production can additionally provide negative balancing power.
ISSN:1364-0321
1879-0690
DOI:10.1016/j.rser.2013.08.085