IDEAS home Printed from https://ideas.repec.org/a/diw/diwwob/81-47-1.html
   My bibliography  Save this article

Verminderte Kohleverstromung könnte zeitnah einen relevanten Beitrag zum deutschen Klimaschutzziel leisten

Author

Listed:
  • Felix Reitz
  • Clemens Gerbaulet
  • Christian von Hirschhausen
  • Claudia Kemfert
  • Casimir Lorenz
  • Pao-Yu Oei

Abstract

According to the climate target set by the German government for 2020, greenhouse gas emissions are to be reduced by 40 percent compared to 1990 levels. However, current projections indicate that this target will only be achieved if further measures are implemented. The power sector has an important role to play here, around 85 percent of its emissions are produced by lignite and hard-coal power plants. A large number of German power stations are already very old and particularly CO2-intensive. Therefore, in the context of the Climate Action Programme 2020 developed by the German government, early closure of lignite and hard coal-fired power plants is being discussed as an effective short-term measure. This appears to be a particularly favorable option due to the current overcapacities, resultant low wholesale prices, and high electricity exports. Scenario calculations for the German power system for 2015 indicate that closing the oldest and most CO2-intensive coal-fired plants could make a substantial contribution to achieving the German government’s climate targets. If additional hard-coal power stations with a total capacity of three gigawatts and lignite power stations with a capacity of six gigawatts were to be closed, this would result in a 23-million-ton reduction in CO2 emissions. The shutdown of hard-coal-fired power plants with an overall capacity of around three gigawatts already announced would generate further reductions. At the same time, wholesale prices are on the increase, which makes power generation by flexible gasdriven plants in particular more cost effective. The wholesale price increase would also lead to a reduction in the EEG surcharge. Die deutsche Bundesregierung hat sich das Ziel gesetzt, die Treibhausgasemissionen bis zum Jahr 2020 um 40 Prozent gegenüber 1990 zu senken. Aktuelle Projektionen gehen davon aus, dass dieses Ziel nur bei Ergreifung weiterer Maßnahmen erreicht wird. Eine wichtige Rolle kommt dabei dem Stromsektor zu, dessen Emissionen zu etwa 85 Prozent in Braun- und Steinkohlekraftwerken entstehen. Große Teile der deutschen Kohlekraftwerke sind schon sehr alt und besonders CO2-intensiv. Im Rahmen des derzeit von der Bundesregierung vorbereiteten Aktionsprogramms Klimaschutz 2020 wird daher als kurzfristig wirksame Maßnahme eine frühzeitige Stilllegung von Kohlekraftwerken diskutiert. Die Gelegenheit hierfür erscheint aufgrund der derzeit bestehenden Überkapazitäten und den damit einhergehenden niedrigen Großhandelspreisen sowie hohen Stromexporten günstig. Szenariorechnungen für das deutsche Stromsystem des Jahres 2015 zeigen, dass die Abschaltung der ältesten und CO2-intensiven Kohlekraftwerke einen substantiellen Beitrag zur Erreichung der Klimaschutzziele der Bundesregierung leisten kann. Bei einer zusätzlichen Stilllegung von rund drei Gigawatt Steinkohle- und sechs Gigawatt Braunkohlekapazitäten ergibt sich eine CO2-Reduktion von 23 Millionen Tonnen. Hinzu kommen Einsparungen, die sich durch den bereits heute angekündigten Rückbau von rund drei GW Steinkohlekraftwerken ergeben. Gleichzeitig steigen die Großhandelsstrompreise, wodurch sich die Wirtschaftlichkeit der Stromerzeugung insbesondere von flexiblen Gaskraftwerken verbessert. Aufgrund des gestiegenen Großhandelspreises sinkt auch die EEG-Umlage.

Suggested Citation

  • Felix Reitz & Clemens Gerbaulet & Christian von Hirschhausen & Claudia Kemfert & Casimir Lorenz & Pao-Yu Oei, 2014. "Verminderte Kohleverstromung könnte zeitnah einen relevanten Beitrag zum deutschen Klimaschutzziel leisten," DIW Wochenbericht, DIW Berlin, German Institute for Economic Research, vol. 81(47), pages 1219-1229.
  • Handle: RePEc:diw:diwwob:81-47-1
    as

    Download full text from publisher

    File URL: https://www.diw.de/documents/publikationen/73/diw_01.c.489768.de/14-47-1.pdf
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Heinrichs, Heidi Ursula & Markewitz, Peter, 2017. "Long-term impacts of a coal phase-out in Germany as part of a greenhouse gas mitigation strategy," Applied Energy, Elsevier, vol. 192(C), pages 234-246.
    2. Anke, Carl-Philipp & Hobbie, Hannes & Schreiber, Steffi & Möst, Dominik, 2020. "Coal phase-outs and carbon prices: Interactions between EU emission trading and national carbon mitigation policies," Energy Policy, Elsevier, vol. 144(C).
    3. Michele Fiorelli & Dogan Keles & Francesco Montana & Giovanni Lorenzo Restifo & Eleonora Riva Sanseverino & Gaetano Zizzo, 2020. "Evaluation of the Administrative Phase-Out of Coal Power Plants on the Italian Electricity Market," Energies, MDPI, vol. 13(18), pages 1-24, September.
    4. Stefan Seifert, 2016. "Semi-Parametric Measures of Scale Characteristics of German Natural Gas-Fired Electricity Generation," Discussion Papers of DIW Berlin 1571, DIW Berlin, German Institute for Economic Research.
    5. Keles, Dogan & Yilmaz, Hasan Ümitcan, 2020. "Decarbonisation through coal phase-out in Germany and Europe — Impact on Emissions, electricity prices and power production," Energy Policy, Elsevier, vol. 141(C).

    More about this item

    Keywords

    electricity; coal; climate policy;
    All these keywords.

    JEL classification:

    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities
    • Q40 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - General

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:diw:diwwob:81-47-1. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Bibliothek (email available below). General contact details of provider: https://edirc.repec.org/data/diwbede.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.