TUTCRIS - Tampereen teknillinen yliopisto


Feasibility of Flexible Biomass Utilization in Energy Systems



KustantajaTampere University
ISBN (elektroninen)978-952-03-1335-7
ISBN (painettu)978-952-03-1334-0
TilaJulkaistu - 13 joulukuuta 2019
OKM-julkaisutyyppiG5 Artikkeliväitöskirja


NimiTampere University Dissertations
ISSN (painettu)2489-9860
ISSN (elektroninen)2490-0028


Globally the fastest growing renewable energy production methods are weather
dependent solar and wind power production. However, their locality and fluctuating nature may make the energy demand and production unbalanced and thus increases the need for system flexibility.
Biomass is available in one form or another almost everywhere on Earth. It has
been recognized to have potential for providing flexibility into energy systems. Even though technological possibilities for biomass utilization are numerous, detailed costs of the flexibility means are often ignored. This thesis looks in detail into the feasibility of flexible biomass utilization methods through practical examples; biomass to chemicals, biomass to heat and power and biomass as a transport fuel.
The results of this study provides suggestions how to increase the feasibility of
biomass utilization in energy system levels. The results showed that biomass can
provide flexibility through demand response, flexible production, and useful power storage. These can be achieved with currently existing technologies that can be adopted in a short timescale through introducing subsidies.. It was also shown that the feasibility of biomass utilization method can be improved through side-product, optimized running mode, or technical improvements. The most efficient way to increase the feasibility was operational optimization. The key factors in the feasibility of biomass utilization methods are investment and fuel costs. However, as sustainable amount of biomass is limited other flexibility means will be needed.
Future studies should include accurate forecasting on cost and price
development, since these are often based on assumptions. In addition, sustainability and carbon emissions of the whole biomass production chain should be studied.

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