Kiviranta, Kirsikka

Tapani, Antton

Thomasson, Tomi

Tähtinen, Matti

English

VTT Research System

This document is downloaded from theVTT’s Research Information Portalhttps://cris.vtt.fiVTThttp://www.vtt.fiP.O. box 1000FI-02044 VTTFinlandBy using VTT’s Research Information Portal you are bound by thefollowing Terms & Conditions.I have read and I understand the following statement:This document is protected by copyright and other intellectualproperty rights, and duplication or sale of all or part of any of thisdocument is not permitted, except duplication for research use oreducational purposes in electronic or print form. You must obtainpermission for any other use. Electronic or print copies may not beoffered for sale.VTT Technical Research Centre of FinlandFlexibility Options for an Island Energy SystemThomasson, Tomi; Kiviranta, Kirsikka; Tapani, Antton; Tähtinen, MattiPublished: 01/03/2020Document VersionPublisher's final versionLink to publicationPlease cite the original version:Thomasson, T., Kiviranta, K., Tapani, A., & Tähtinen, M. (2020). Flexibility Options for an Island Energy System.Poster session presented at IRES2020, Düsseldorf, Germany.Download date: 14. Jun. 2020Flexibility Options for an Island Energy SystemTomi Thomassona*, Kirsikka Kivirantaa, Antton Tapanib, Matti TähtinenaaVTT Technical Research Centre of Finland LtdbReteres LtdContactTomi Thomassontomi.thomasson@vtt.fi+358 40 572 3589Potential of biomass CHP?Combined heating and powerusing biomass fuels enables…• Dispatchability with low OPEX• High total efficiency• Production flexibility withthermal energy storageVTT – beyond the obviouswww.vttresearch.comWhat is the challenge? • High shares of variablerenewable energy integrated• Reliability and security ofsupply must be ensured• Supplementary roles of different solutions requiredCEMBioFlexFinal report availableWe studied the system usingdispatch and investment optimization• Mixed-integer linear programming• Hourly simulation of a year• Detailed unit models• System total operating costs minimizedFocus on Åland IslandsLocated between Finland and Sweden,to which power transmission possible• Large wind projects in progress• Limited potential for certain PtXsolutions such as synthetic transportfuels and biogas upgrading withhydrogenOptimality depends on theemphasis: costs, self-sufficiency,emission reductions or biomassconsumption• Power-to-heat promising• Full self-sufficiency not realistic• Potential for circular economy-400-300-200-1000100200300400Base BAU LowVariableDispatch Variable VariableHeatScenario & capacity Wind CHP PtHeat YearBase 21 2017BAU 21 2025Dispatch 85 15 2025LowVariable 85 2025Variable 185 2025Variable Heat 185 15 2025-40-30-20-10010203040Base BAU LowVariableDispatch Variable VariableHeatSystem annualnet profitSold electricity (local)Sold electricity (export)Sold district heatVariable OPEXInvestment paymentsImported electricityImportExportAnnualpowertransmissionM€/aGWh/a

Flexibility Options for an Island Energy System

https://cris.vtt.fi/ws/files/33854688/IRES2020_Poster_Thomasson.pdf

Flexibility Options for an Island Energy System

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