Grid integration refers to the process of incorporating renewable energy sources, such as solar and wind power, into existing electricity grids. This involves making changes and upgrades to the infrastructure and technologies of the grid to accommodate the intermittent and variable nature of renewable energy sources. Grid integration also involves managing the flow of electricity from these sources to ensure stability, reliability, and efficiency of the grid system. Researchers in this area focus on developing innovative solutions, technologies, and strategies to optimize grid integration and minimize the impacts of renewable energy on the grid.