Storage systems must work reliably, often around the clock. In order to store and retrieve loads quickly, transfer trolleys (also called cross transfer or shifting trolleys), shuttle systems, and storage and retrieval units (SRUs) are used in high-bay warehouses and automated small parts warehouses. To supply these systems reliably with signals and energy and move them smoothly, igus offers durable, maintenance-free energy chains, cables, and bearing components. Our energy supply systems are developed for horizontal and vertical movements with high dynamics, require little installation space, and ensure greater energy efficiency thanks to their lightweight construction.