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In these article, we discusses the analysis of the profitability of investments in energy storage batteries, in the context of injection policies in the grid in Romania. The study compares the compensation and energy sale regimes for prosumers and producers depending on the installed capacity, thus showing the impact of market prices and tax regulations on the return of investment (ROI). The case study has three scenarios, each with specific formulas for calculating ROI depending on the price of the stored energy ...

The significant growth of the global population that has happened in the last years strains even more the present fragile balance between the produced and consumed resources, if the current rate of development is to be maintained without change the harmful and the negative effects caused by the global warming will only amplify.The increase of the water level, the desertification of fertile lands and the greenhouse gas effects are only a few of the problems we already need to resolve, because of this the transition...

Hydrogen-based energy production involves the use of fuel cells or the direct combustion of hydrogen (a particular case being hydrogen combustion in internal combustion engines). Direct hydrogen combustion is still in the testing phase, with challenges arising from its energetic properties, which continue to be a difficult factor. For instance, hydrogen has a low calorific value (about three times lower than methane) in its gaseous phase, which is the phase where combustion occurs, a very high combustion speed (ab...