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Electricity production from Swiss woody biomass:
Assessment of resources, technologies, and costs
Introduction
Swiss domestic biomass resource potentials are assessed, first on a primary energy basis and then as electricity generation potentials. Costs are also estimated.
M. Ernia, A.S. Calbry-Muzykab, R. Lemma, S.M.A. Biollazb, O. Theesa
aSwiss Federal Institute for Forest, Snow and Landscape Research (WSL), Forest Resources and Management, Forest Production Systems (FPS), 8903 Birmensdorf, Switzerland
bPaul Scherrer Institute (PSI), Energy and Environment (ENE), Thermo-Chemical Processes Group (TCP), 5232 Villigen PSI, Switzerland
8/30/2017 adelaide.muzyka@psi.ch
Resource Assessment Electricity Conversion Paths
Technology categories from BFS/BFE energy statistics considered for woody biomass:
Theoretical domestic biomass
resources
Sustainable domestic biomass
resources
Remaining sustainable domestic biomass
resources Electricity
Focus on utilization of
domestic biomass resources:
Conversion
efficiency for each feedstock
Subtract
resources already used energetically Ecological, economic,
technical, legal restrictions
Economic Considerations: Resource Costs
Theoretical potential: total quantity of biomass
Sustainable potential: theoretical potential minus a range of technical, political, economic, legal and environmental constraints
Remaining sustainable potential (primary energy):
sustainable potential minus the already energetically used potential
Areas are scaled to PJ/year of energy resources in
Switzerland.
Electricity cost ranges by conversion tech
(see top right column for technologies)
Electricity costs depend on the business model of the sector:
Electricity Potentials: Today’s Technology
Economic Considerations: Electricity Costs
Electricity Potentials: New Technologies
• Redirect wood from current heat-only
uses to existing CHP systems
• Gradually use all
remaining sustainable biomass feedstock in new, higher-efficiency technologies
‒ Gasification CHP for large scale
‒ Externally-fired gas turbine for small scale
Assumptions:
New Technologies (NT)
Results: Electricity Potentials (GWhe)
Max total added relative to 2015: 1.2 TWhe (4.4 PJe)
*Note that this category includes woody and non-woody feedstocks.
*
Max total added relative to 2015: 0.7 TWhe (2.4 PJe)
• Redirect wood from current heat-only
uses to existing CHP systems
• Gradually use all
remaining sustainable biomass feedstock in highest-efficiency of today’s technology Assumptions:
Technology as Usual
Results: Electricity Potentials (GWhe)
*
