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Necessary Contributions to reach 100% Renewable Energy and Energy Justice

Munich, Germany: 22-24. April 2024

2nd International Conference on Renewable and Non-Renewable Energy (ICRNRE)

This paper refers to my two presentations, given last year at the 1st ICRNRE in Valencia [1, 2] and describes the most important contributions necessary to reach the goals discussed:

  • The 100% renewably powered world
    Short summary of paper [1] presented at 1st ICRNRE (Valencia, 2022).
  • Storage
    The necessaty for storage in a 100% renewably powered world is outlined. After a short overview on existing storage technologies emphasis is taken on further developments fort the different future applications with special emphasis on critical materials. An order of magnitude estimate is given for the future needed battery capacity.
  • Mobility without fossil fuel
    Reasoning why batteries for cars, most light- and some heavy-duty vehicles are superior to other technologies (hydrogen/fuel cell and green fuel)!
    Electric motors without the need for rare-earth elements!
    Adjusted liquid green fuel for ships and long range airplanes;
    Is it possible to reach the necessary ramp-up for fossil fuel free mobility by 2050?
  • Industry
    The decarbonization of the global industry needs huge amounts of hydrogen, process heat and low cost electricity. A rough estimate is given for these needs.
  • Air conditioning of buildings
    Huge amounts of oil and gas are needed in the building sector – heating in northern and cooling in southern countries. Necessary developments are described.
  • Making the trillions $ investment money available for Africa & others
    (Short summary of paper [2] presented at 1st ICRNRE (Valencia, 2022))

As a conclusion it can be stated that we have the cost-effective technologies available to reach the goals – however, the reluctance from many old industries and political institutions and the challenges to mobilize trillion $s from the private sector secured by the public institutions are the biggest hurdles which have to be overcome!


[1] 60% solar, 20% wind and 20% all others (hydro, bioenergy, nuclear, fossil et al.) to power the future global energy needs

[2] Global energy justice and the Paris climate goal – what must be done?

Download: 240422_24_2nd_ICRNRE.pdf

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