Study on a hypothetical replacement of nuclear electricity by wind power in Sweden
The Swedish electricity supply system benefits strongly from the natural conditions which allow a high share of hydroelectricity. A complete supply is, however, not possible. Up to now nuclear power is the other workshop horse to serve the country with electricity. Thus, electricity production in Sw...
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ftkthstockholm:oai:DiVA.org:kth-224640 2024-02-11T10:06:00+01:00 Study on a hypothetical replacement of nuclear electricity by wind power in Sweden Rachlew, Elisabeth 2016 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224640 https://doi.org/10.1140/epjp/i2016-16173-8 eng eng KTH, Atom- och molekylfysik The European Physical Journal Plus, 2016, 131, s. 16173-16178 orcid:0000-0001-7389-5501 http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224640 doi:10.1140/epjp/i2016-16173-8 ISI:000377009900005 Scopus 2-s2.0-84971318199 info:eu-repo/semantics/openAccess Physical Sciences Fysik Article in journal info:eu-repo/semantics/article text 2016 ftkthstockholm https://doi.org/10.1140/epjp/i2016-16173-8 2024-01-17T23:32:58Z The Swedish electricity supply system benefits strongly from the natural conditions which allow a high share of hydroelectricity. A complete supply is, however, not possible. Up to now nuclear power is the other workshop horse to serve the country with electricity. Thus, electricity production in Sweden is basically CO2-free and Sweden has reached an environmental status which others in Europe plan to reach in 2050. Furthermore, there is an efficient exchange within the Nordic countries, Nordpol, which can ease possible capacity problems during dry cold years. In this study we investigate to what extent and with what consequences the base load supply of nuclear power can be replaced by intermittent wind power. Such a scenario leads unavoidably to high wind power installations. It is shown that hydroelectricity can not completely smooth out the fluctuations of wind power and an additional back-up system using fossil fuel is necessary. From the operational dynamics, this system has to be based on gas. The back-up system cannot be replaced by a storage using surplus electricity from wind power. The surplus is too little. To overcome this, further strong extension of wind power is necessary which leads, however, to a reduction of the use of hydroelectricity if the annual consumption is kept constant. In this case a fossil-free energy form is replaced by another, however, more complex one. A mix of wind power at 22.3 GW plus a gas based back-up system with 8.6 GW producing together 64.8 TWh would replace the present infrastructure with 9 GW nuclear power producing 63.8 TWh electricty. The specific CO2-emission increases to the double in this case. Pumped storage for the exclusive supply of Sweden does not seen to be a meaningful investment. QC 20220412 Article in Journal/Newspaper Nordpol* Royal Institute of Technology, Stockholm: KTHs Publication Database DiVA The European Physical Journal Plus 131 5 |
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Royal Institute of Technology, Stockholm: KTHs Publication Database DiVA |
op_collection_id |
ftkthstockholm |
language |
English |
topic |
Physical Sciences Fysik |
spellingShingle |
Physical Sciences Fysik Rachlew, Elisabeth Study on a hypothetical replacement of nuclear electricity by wind power in Sweden |
topic_facet |
Physical Sciences Fysik |
description |
The Swedish electricity supply system benefits strongly from the natural conditions which allow a high share of hydroelectricity. A complete supply is, however, not possible. Up to now nuclear power is the other workshop horse to serve the country with electricity. Thus, electricity production in Sweden is basically CO2-free and Sweden has reached an environmental status which others in Europe plan to reach in 2050. Furthermore, there is an efficient exchange within the Nordic countries, Nordpol, which can ease possible capacity problems during dry cold years. In this study we investigate to what extent and with what consequences the base load supply of nuclear power can be replaced by intermittent wind power. Such a scenario leads unavoidably to high wind power installations. It is shown that hydroelectricity can not completely smooth out the fluctuations of wind power and an additional back-up system using fossil fuel is necessary. From the operational dynamics, this system has to be based on gas. The back-up system cannot be replaced by a storage using surplus electricity from wind power. The surplus is too little. To overcome this, further strong extension of wind power is necessary which leads, however, to a reduction of the use of hydroelectricity if the annual consumption is kept constant. In this case a fossil-free energy form is replaced by another, however, more complex one. A mix of wind power at 22.3 GW plus a gas based back-up system with 8.6 GW producing together 64.8 TWh would replace the present infrastructure with 9 GW nuclear power producing 63.8 TWh electricty. The specific CO2-emission increases to the double in this case. Pumped storage for the exclusive supply of Sweden does not seen to be a meaningful investment. QC 20220412 |
format |
Article in Journal/Newspaper |
author |
Rachlew, Elisabeth |
author_facet |
Rachlew, Elisabeth |
author_sort |
Rachlew, Elisabeth |
title |
Study on a hypothetical replacement of nuclear electricity by wind power in Sweden |
title_short |
Study on a hypothetical replacement of nuclear electricity by wind power in Sweden |
title_full |
Study on a hypothetical replacement of nuclear electricity by wind power in Sweden |
title_fullStr |
Study on a hypothetical replacement of nuclear electricity by wind power in Sweden |
title_full_unstemmed |
Study on a hypothetical replacement of nuclear electricity by wind power in Sweden |
title_sort |
study on a hypothetical replacement of nuclear electricity by wind power in sweden |
publisher |
KTH, Atom- och molekylfysik |
publishDate |
2016 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224640 https://doi.org/10.1140/epjp/i2016-16173-8 |
genre |
Nordpol* |
genre_facet |
Nordpol* |
op_relation |
The European Physical Journal Plus, 2016, 131, s. 16173-16178 orcid:0000-0001-7389-5501 http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224640 doi:10.1140/epjp/i2016-16173-8 ISI:000377009900005 Scopus 2-s2.0-84971318199 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1140/epjp/i2016-16173-8 |
container_title |
The European Physical Journal Plus |
container_volume |
131 |
container_issue |
5 |
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1790603369218310144 |