Assessment Of The Impacts Of Integrating Renewable Sources Into Distribution Networks

Background: This study conducts a comparative analysis of the impacts of integrating distributed generation (DG) into medium-voltage distribution networks, with a specific focus on photovoltaic systems. Materials and Methods: Simulations were performed using Interplan software, considering a conventional distribution network as the baseline and three alternative scenarios with different levels of photovoltaic generation power injection. Results: The findings revealed that while small-scale generation does not pose significant challenges, higher levels exceeding the feeder’s load capacity can result in reverse power flow, overvoltage, power factor degradation, and increased technical losses. The absence of detailed and robust preliminary feasibility studies has been identified as a key factor behind the rejection of DG connection requests by electric power distribution companies. This scenario has led to operational difficulties and financial losses for all stakeholders, creating conditions that fail to align with minimum global cost criteria. Conclusion: To address these challenges, this study recommends the adoption of advanced simulation tools by utilities and industry stakeholders to identify optimal connection points. This approach aims to enhance the technical and economic sustainability of the electrical system, thereby supporting the feasibility of this essential requirement for the energy transition