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Cost-effective biogas utilisation – A modelling assessment of gas infrastructural options in a regional energy system

Martin Börjesson (Institutionen för energi och miljö, Energiteknik) ; Erik Ahlgren (Institutionen för energi och miljö, Energiteknik)
Energy (0360-5442). Vol. 48 (2012), 1, p. 212–226.
[Artikel, refereegranskad vetenskaplig]

The current utilisation of biogas from anaerobic digestion is low compared to the technical potential. This study investigates requirements for policy support to overcome techno-economic barriers of biogas utilisation and effects of different biogas distribution strategies. Two potential sectors for biogas use are covered: the transport sector and the district heating sector. A quantitative, optimising, energy system modelling approach is applied and the region of Västra Götaland, Sweden, is studied. The model has a high geographical resolution and locations of both biogas feedstock and potential markets are taken into account. The results show that a small part of the technical biogas potential can be cost-effectively utilised without biogas subsidies or larger infrastructural investments. Comparably low subsidies give significant increases in cost-effective biogas utilisation levels, but utilisation close to the full technical potential is linked to high subsidies. From a techno-economic perspective, biogas is best used as vehicle gas. Since local vehicle gas markets are limited, enhanced biogas distribution conditions not only imply larger total cost-effective biogas utilisation, but also a larger share of biogas as vehicle gas. Compared to distribution strategies based on truck transports and regional biogas grids, an expanded natural gas grid presents possibilities but also risks.

Nyckelord: Biogas, Gas grid, Distribution, MARKAL, Model, Energy system



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Denna post skapades 2013-01-15. Senast ändrad 2013-03-04.
CPL Pubid: 170725

 

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Institutioner (Chalmers)

Institutionen för energi och miljö, Energiteknik

Ämnesområden

Energi
Transport
Hållbar utveckling
Energisystem

Chalmers infrastruktur