This article analyses the flexibility of the German power market with respect to the integration of an increasing share of electricity from renewable energy sources. Flexibility limiting system components, which cause negative prices are explained and illustrated for the German market. Then, the...

The operation of the power markets is strongly aected by the presence of high shares of electricity from renewable energy sources (RES-E) in the market. Especially in times of high RES-E infeed, rm market situations can lead to extreme results, even to negative power prices. The behavior of...

Heat generation based on conventional fossil fuels is considered to be the cause of a significant proportion of greenhouse gas emissions. Achieving the climate protection goals therefore requires a transition to renewable energy sources such as biomass. Establishing renewable district heating...

In this article we consider the modeling principles and model for estimation of tension of international relations of a country with other countries. We use the tension of international relations as partial indicator of international political-economical country-risk. The model bases on...

The aim of this paper is to supply both a description and an interpretation-key of the recent developments in the Austrian Economics, with particular attention for the role played by the concept of «entrepreneurial discovery». Without knowing exactly «what» he is looking for and without...

This study combines regression analysis with machine learning analysis to study the merit order effect of renewable energy focusing on German market, the largest market in Europe with high renewable energy penetration. The results show that electricity from wind and solar sources reduced the...

The spiral of higher oil prices that is occurring currently is mostly caused not by the lack of reserves, but by increasing demand on the existing supply. However, increase of supply would only temporarily attenuate the issue, as demand is expected to continue to soar and eventually outstrip the...

Electric and natural gas are the two major sources of energy for residents of Washington State. Several states have adopted a policy whereby utility companies decide on the choice of mixes of resources by incorporating cost effectiveness, conservation and externalities. Externalities could...

The study investigates the long run relationship and causal relationship between energy consumption and economic growth in the Brics countries during the period 1990 – 2013. The Pedroni panel co-integration method is applied to analyse the co-integration relationship among the variables. The...