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Kohlemotoren, Windmotoren und Dieselmotoren: Was zeigt die CO2-Bilanz?

Author

Listed:
  • Christoph Buchal
  • Hans-Dieter Karl
  • Hans-Werner Sinn

Abstract

Dieser Artikel vergleicht aufgrund offzieller Messdaten zwei Mittelklasseautos, den Mercedes C 220 d und den neuen Tesla Model 3, bezüglich ihres Verbrauchs an Diesel bzw. Strom. Dabei werden alternative marginale Energiequellen für den Strom sowie der tatsächliche Strommix Deutschlands aus dem Jahr 2018 zugrunde gelegt. Ferner wird eine Metastudie für den CO2-Ausstoß bei der Batteriefertigung berücksichtigt. Es zeigt sich, dass der CO2-Ausstoß des Elektromotors im günstigen Fall um etwa ein Zehntel und im ungünstigen Fall um ein gutes Viertel über dem Ausstoß des Dieselmotors liegt. Am günstigsten ist der mit Methan betriebene Verbrennungsmotor, der auch dann, wenn man die erhebliche Vorkettenverschmutzung beim Methan berücksichtigt, um ein knappes Drittel unter dem Dieselmotor liegt. Auf die Wasserstoff-Methan-Technologie zu setzen, hat zwei Vorteile. Zum einen ist sie langfristig der einzig funktionierende Weg zur Speicherung der überschießenden Stromspitzen des Wind- und Sonnenstroms, die erforderlich ist, wenn die Marktanteile dieser Form regenerativen Stroms ausgeweitet werden sollen. Zum anderen bietet sie schon aus dem Stand heraus die Möglichkeit einer erheblichen CO2-Einsparung, selbst wenn dieses Methan aus fossilen Quellen stammt.

Suggested Citation

  • Christoph Buchal & Hans-Dieter Karl & Hans-Werner Sinn, 2019. "Kohlemotoren, Windmotoren und Dieselmotoren: Was zeigt die CO2-Bilanz?," ifo Schnelldienst, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 72(08), pages 40-54, April.
    • Handle: RePEc:ces:ifosdt:v:72:y:2019:i:08:p:40-54
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    References listed on IDEAS

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    2. Michael Neidhardt & Jordi Mas-Peiro & Antonia Schneck & Josep O. Pou & Rafael Gonzalez-Olmos & Arno Kwade & Benedikt Schmuelling, 2022. "Automotive Electrification Challenges Shown by Real-World Driving Data and Lifecycle Assessment," Sustainability, MDPI, vol. 14(23), pages 1-19, November.
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    5. Joachim Weimann, 2020. "Elektroautos und das Klima: die große Verwirrung [Electric Cars and the Climate: The Big Confusion]," Wirtschaftsdienst, Springer;ZBW - Leibniz Information Centre for Economics, vol. 100(11), pages 890-895, November.
    6. Christian Leßmann & Arne Steinkraus & Manuel Frondel & Martin R. Stuchtey & Manuel Braun & Thomas Hamacher & Barbara Lenz & Daniel Krajzewicz & Gernot Liedtke & Christian Winkler & Karen Pittel, 2019. "Zukunft der Mobilität: Welche Optionen sind tragfähig?," ifo Schnelldienst, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 72(12), pages 03-24, June.
    7. Bjørnskov, Christian, 2020. "Economic Freedom and the CO2 Kuznets Curve," Working Paper Series 1331, Research Institute of Industrial Economics.
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    11. Jakub Hospodka & Helena Bínová & Stanislav Pleninger, 2020. "Assessment of All-Electric General Aviation Aircraft," Energies, MDPI, vol. 13(23), pages 1-19, November.
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    13. Sacchi, R. & Bauer, C. & Cox, B. & Mutel, C., 2022. "When, where and how can the electrification of passenger cars reduce greenhouse gas emissions?," Renewable and Sustainable Energy Reviews, Elsevier, vol. 162(C).

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    More about this item

    Keywords

    Kfz-Industrie; Elektrofahrzeug; Dieselmotor; Klimapolitik; Nachhaltige Mobilität; Energiewende;
    All these keywords.

    JEL classification:

    • L62 - Industrial Organization - - Industry Studies: Manufacturing - - - Automobiles; Other Transportation Equipment; Related Parts and Equipment
    • Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation
    • Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling

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