CTRL ENERGY builds modular hardware energy systems designed to evolve alongside their users. Our main project, ZERO, is a modular battery system built around reparability, customization, and community-created accessories. We experiment with open hardware concepts that allow makers to extend functionality through 3D-printed add-ons, mounts, organizers, and tools. Many of the accessories we release originate from ideas shared directly by the community, then evolve through remixing and iteration. We believe hardware should not be static or disposable. It should adapt, improve, and grow!