Nuclear Power von Kai Neumann

Sweden and several other countries decide to resume the use of the widely disputed nuclear energy, withdraw the promised decomission of older power plants and even plan to build new power plants. They argue that we all need cheap energy supply to gain time for the development of alternative energy sources and that nuclear energy is a carbon neutral and therefore climate saving source of energy. The majority of people until recently feared nuclear energy for its manifold risks. The costs of nuclear energy...

Quantitative mini model of job markets and purchasing power von Kai Neumann

This quantitative model is a small excerpt from a 1000+ factors model of a larger project. It allows to simulate the changes of a job market due to changes of available jobs or people seeking for jobs, people choosing to work only part time and a larger part of pensioners. While it would be fairly easy to model it through a classic system dynamics stock and flow structure it was fairly challenging to try it with the iMODELER's possibility to use stocks without delays. That is also the reason why I tried ...

Power2Gas by Greenpeace Energy von Kai Neumann

I was interested to change to a power to gas subscription from greenpeace energy in which they offer to invest into power to gas (wind and solar energy is electrolytically transformed into methane that can be transported with the existing fossile gas network) yet to be built. I disliked that right now there is only a minor proportion of power to gas included in their regular fossil gas supply and that there are too few investors. I argued that they should offer a high priced but consequent product which ...

Open Source Horizon Scanning Trend Forecast Foresight Model (1) von Kai Neumann

This model should help to collect news from all over the world and put them into cause and effect relation to each other, and to the factors that define the economy, the societies, the environment, and everyone. Those factors we call targets, colored yellow. Whenever some interesting news pops up we may add further target factors to connect them with the central target of our all well being. The model should remain as general as possible. A small manual is provided with the Menu ... Presenter. News could...

Energiewende 3 von Kai Neumann

Ein kleines Modell zur Reflektion der Optionen einer zukünftigen Energieversorgung. Das Modell zeigt die wesentlichen Argumentationsstränge. Es können gern weitere Argumente eingebaut oder die Gewichtungen der Zusammenhänge variiert werden. Leicht lässt sich dieses Modell also weiter differenzieren und sogar die einzelnen regenerativen Energieträger oder auch explizit die Option von Thorium-Reaktoren können im Detail betrachtet werden. Vielleicht ist es aber überraschend, dass es keine perfekte Energieve...

SP Erdgas ersetzen von Professor Fleischer

Gasbedarf wird aus Erdgas gedeckt. In Zukunft soll dieser Bedarf zunehmend bis zu 100% durch Biogas ersetzt werden. Biogas kann zuerst aus biogenen Abfällen und dann, wenn diese nicht ausreichen aus Energiepflanzen erzeugt werden. Berücksichtigt werden sind auch die jeweiligen Umweltbelastungen, insbesondere der Beitrag zur Klimaveränderung durch CO2

GDP growth with shrinking population von Kai Neumann

This model was developed as a reaction to a science meeting where the participants univocally doubted the potential for GDP growth in Germany with the prospect of a shrinking population. While I might criticize the concept of a GDP and see a lot of reasons for a shrinking economy I doubt that a shrinking population inevitably has to lead to a shrinking GDP. But see my arguments in the model and tell us what you would change or even better make the changes directly in the model via the collaborative link.

Are investments into green energy macroeconomically costs? von Kai Neumann

This qualitative model and its description in the presenter shows an interconnected view of the advantages and disadvanteges of today's investments into green energy.