Suche nach „[J.] [Dorfner]“ hat 3 Publikationen gefunden
Suchergebnis als PDF
    DigitalNachhaltigF: Europan Campus Rottal-Inn


    P. Kuhn, Matthias Huber, J. Dorfner, T. Hamacher

    Challenges and opportunities of power systems from smart homes to super-grids

    Ambio, vol. 45, no. S1, pp. 50-62


    DOI: 10.1007/s13280-015-0733-x

    Abstract anzeigen

    The world’s power systems are facing a structural change including liberalization of markets and integration of renewable energy sources. This paper describes the challenges that lie ahead in this process and points out avenues for overcoming different problems at different scopes, ranging from individual homes to international super-grids. We apply energy system models at those different scopes and find a trade-off between technical and social complexity. Small-scale systems would require technological breakthroughs, especially for storage, but individual agents can and do already start to build and operate such systems. In contrast, large-scale systems could potentially be more efficient from a techno-economic point of view. However, new political frameworks are required that enable long-term cooperation among sovereign entities through mutual trust. Which scope first achieves its breakthrough is not clear yet.

    DigitalNachhaltigF: Europan Campus Rottal-Inn


    T. Hamacher, Matthias Huber, J. Dorfner, K. Schaber, A. Bradshaw

    Nuclear fusion and renewable energy forms: Are they compatible?

    Fusion Engineering and Design, vol. 88, no. 6-8, pp. 657-660


    DOI: 10.1016/j.fusengdes.2013.01.074

    Abstract anzeigen

    Nuclear fusion can be considered as a base-load power plant technology: High investment costs and limited operational flexibility require continuous operation. Wind and solar, on the other hand, as the putative main pillars of a future renewable energy system, are intermittent power sources. The resulting variations that occur on many different time scales require at first sight a rather flexible back-up system to balance this stochastic behavior. Fusion would appear not to be well suited for this task. The situation changes, however, if a large-scale renewable energy system is envisaged based on a transnational, or even transcontinental power grid. The present paper discusses a possible European power system in the year 2050 and beyond. A high percentage share of renewable energies and a strong power grid spanning the whole of Europe and involving neighboring countries, in particular those in North Africa, are assumed. The linear programming model URBS is used to describe the power system. The model optimizes the overall system costs and simulates power plant operation with an hourly resolution for one whole year. The geographical resolution is at least at the country level. The renewable technologies are modeled first on a more local level and then summed together at the country or regional level. The results indicate that the smoothing effects of the large-scale power grid transform the intermittent renewable supply, which is then more compatible with base-load power plants such as fusion reactors.

    DigitalNachhaltigF: Europan Campus Rottal-Inn

    Matthias Huber, J. Dorfner, T. Hamacher

    Electricity System Optimization in the EUMENA Region

    Technischer Bericht im Auftrag der dii GmbH, München