Chapter Six of the SunShot Vision Study gives an overview of the major integration challenges along with potential solutions needed to achieve the SunShot scenario. It describes the operation of the electric power system and the important role of reliability standards in ensuring adequate balancing of generation and demand. It also addresses the integration of solar into power system operations and planning, including lessons learned in this and other studies to maximize the role of solar energy and minimize integration costs. Finally, it highlights the importance of developing models and performance standards to ensure the reliable operation of the transmission system with significant levels of solar energy, and examines the feasibility of integrating significant levels of solar energy into the existing and future distribution grid.