In brief: As energy demands from AI, electric vehicles, and other technologies mount, the tech sector's interest in battery storage has grown sharply in recent years. In the latest example, the son of Dell's founder has teamed up with a SpaceX alumnus to break into the fast-growing home battery storage market. Home battery storage, which can lower electric bills by feeding power back to the grid, is gaining popularity across the US, particularly in warmer regions. Although local battery storage has historically been tied to home solar power, the technology is increasingly showing up in homes with or without solar panels. Early financial backer Antonio Gracias and co-founder Justin Lopas, both with SpaceX ties, believe Base and similar operations can help the US energy grid power a return to domestic manufacturing.