Battery Management System for Polish Hybrid Residential Photovoltaic Power Plants.

Growing share of Renewable Energy Sources (RES) in Polish electricity system has motivated the Polish government to make changes in the law. Those changes decrease the economic profit of using photovoltaic power plants, but incentivize the use of hybrid systems equipped with batteries. In this paper, the state-of-the-art battery management system, which maximizes self-consumption has been compared to our own time-based proposal, which is focused on economic profit. We used real-life measurements from a 6kWp residential power plant to compare both battery management systems. The results show that controlling batteries with our model allows us to save more money.