What is it about?
This study evaluates different strategies to mitigate overvoltages in low-voltage distribution networks with high photovoltaic (PV) penetration. The paper compares techniques such as reactive power control, storage, and demand-side management using detailed simulations based on real network and solar generation data. Results show that while reactive power alone may be insufficient, combining multiple approaches—especially PV self-consumption with storage - can effectively reduce overvoltages and improve hosting capacity in local grids.
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Photo by Fré Sonneveld on Unsplash
Why is it important?
As rooftop solar systems become more widespread, distribution networks risk overvoltage issues that can damage equipment and disrupt grid stability. This research provides unmistakable evidence and guidance on how to avoid such problems through proactive technical solutions. It helps grid operators, regulators, and policymakers understand which combinations of technologies are most effective and feasible, supporting the safe integration of renewable energy into existing infrastructure.
Perspectives
This work is part of my broader effort to support the transition toward clean and decentralized energy systems. It reinforces the idea that technical coordination—between control algorithms, storage, and user behaviour- is essential to unlock the full potential of residential solar energy. It also reflects my belief in the importance of using real data to evaluate complex grid interactions in a grounded and applicable way.
Dr Fernando M Camilo
Universidade de Lisboa
Read the Original
This page is a summary of: An Assessment of Overvoltage Mitigation Techniques in Low Voltage Distribution Networks with High Penetration of Photovoltaic Microgeneration , IET Renewable Power Generation, January 2018, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-rpg.2017.0482.
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