Household battery systems are a key element in the transition to environmentally friendly energy. By increasing the consumption of electricity generated from renewable sources such as solar and wind, they directly reduce households' dependence on fossil fuels (coal, gas, and oil) used by traditional power plants. This, in turn, leads to a significant reduction in greenhouse gas emissions and other harmful substances. Moreover, batteries stabilize the power grid by smoothing out the fluctuations inherent in renewable energy sources, thereby contributing to the creation of a more flexible, decentralized, and sustainable energy system for the future.