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Paper presents a technical and economic analysis of the implementation of renewable energy solutions in urban buildings by installing balcony photovoltaic systems. It has been calculated that if 25% of all urban homes in Romania had a balcony photovoltaic system, a total installed power of approximately 1,058 MW would result. The legislative, technical and economic challenges that may hinder the development of these balcony photovoltaic solutions in Europe are analyzed. Information is presented on the influence on...

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 ...