To grid or not to grid: Viability of standalone distribution networks in the far north

Teemu Nurmi, Pyry Karhu, Ella Leppänen, Sami Herranen, Pekka Holopainen, Stanislav Kalabin, Kasperi Koimaki, Jere Luoma-Aho, Iida Salmivesi, Juhani Tammi, Martin Vidjeskog, John Millar

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

This paper summarizes the work of two studies (2016 and 2017) into whether electricity grid connection is economically beneficial when solar, or solar and wind generation is locally installed to an island community in the south of Finland. Three types of customer groups were considered: Summer cottages, free-standing energy houses and a camping site. Approximated consumption time series based on measured data and simulated time series data for wind and solar production based on rigorous statistical modelling were used to make a sober assessment of the viability of the scenarios. It transpired that, based on 2016 costs for the solar-only option, and 2017 costs for the solar and wind option, that it is more economical to make a 7 km MV feeder connection to a primary substation than invest in the backup generation and storage necessary to provide supply to even the summer-only demand scenarios. The methodology is outlined with reference to full reports available online.

Original languageEnglish
Title of host publicationProceedings of the 2018 IEEE 59th Annual International Scientific Conference on Power and Electrical Engineering of Riga Technical University, RTUCON 2018
PublisherIEEE
ISBN (Electronic)9781538669037
DOIs
Publication statusPublished - 4 Mar 2019
MoE publication typeA4 Article in a conference publication
EventInternational Scientific Conference on Power and Electrical Engineering of Riga Technical University - Riga, Latvia
Duration: 12 Nov 201813 Nov 2018
Conference number: 59

Conference

ConferenceInternational Scientific Conference on Power and Electrical Engineering of Riga Technical University
Abbreviated titleRTUCON
CountryLatvia
CityRiga
Period12/11/201813/11/2018

Keywords

  • distribution network planning
  • gridless electricity networks
  • spiral of death

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