Tesla: Known for its Powerpack and Megapack solutions, Tesla offers scalable, high-capacity outdoor cabinets. S&C Electric Company: Specializes in grid-edge energy storage with. . As renewable energy adoption accelerates worldwide, the demand for reliable outdoor energy storage solutions grows. Outdoor energy storage cabinets are critical for managing power in various settings—from utility-scale projects to commercial and industrial sites. But here's the kicker – this isn't your grandfather's manufacturing race. Among these, Tesla Energy stands out due to its innovative technology and extensive market presence.