How to Size a Commercial and Industrial Battery Energy Storage System
To size a commercial and industrial battery energy storage system, calculate the AC power and delivered energy required for its intended duty, then account for the usable battery window, conversion losses, future degradation and any backup reserve. Validate the candidate configuration against interval load data and available charging time. A facility's annual electricity consumption or grid connection rating alone cannot determine the right BESS size. This guide sets out a practical sizing process for commercial buildings, manufacturing facilities and industrial sites. It distinguishes the nominal energy printed on a battery cabinet from the energy that the complete installation must deliver at the customer connection point. Define the application before selecting equipment Start with the job the battery must perform. Peak shaving limits grid import during billing intervals. Time-of-use energy shifting moves purchases between price periods. Solar self-consumption stores eligible ...