Commercial storage is not just a larger home battery. The project usually has a clear operational reason: peak shaving, backup for critical loads, PV self-consumption or a grid-support requirement.
The correct RFQ has to connect power rating, energy capacity, AC voltage, protection devices, cabinet layout and shipping documents. A vague 100kWh battery request is rarely enough.
Power and energy answer different questions
The kW rating describes how much power the system can deliver at one moment. The kWh rating describes how long it can keep doing that. A warehouse backup system, a peak shaving system and a PV smoothing system may all use similar cabinets but different power-to-energy ratios.
Treat the cabinet as an electrical package
C&I systems need attention to AC protection, DC protection, cable entry, ventilation, lifting points and service clearance. The storage cabinet should be quoted with the surrounding BOS logic in mind.