This chapter provides an overview of battery-integrated residential energy systems, including their challenges, opportunities, market trends, policies, environmental consequences, and financial considerations. The analysis examines the obstacles facing the development of these systems, including high capital costs and inconsistent returns on investment, while highlighting the market’s explosive growth. The use of battery-integrated household energy storage systems is primarily impacted by incentives and governmental regulations. Regulatory frameworks affect environmental sustainability, net metering, and grid integration. The importance of battery-integrated systems for reducing greenhouse gas emissions, enhancing grid stability, and promoting the integration of renewable energy sources is emphasized throughout the chapter. Technological advances, however, provide promise for a more reliable and sustainable energy future. The growing knowledge of these systems, financial incentives, and customers’ desire for energy independence as government policies and goals shift are expected to drive the market for these systems.