Energy storage projects are categories according to their service or use case. There are two main high level categories: Grid Applications and End-use Applications. A third high-level category (Flags) is used to flag projects with services or use cases that do not clearly fit in one of the other two high-level categories.
Each category has several secondary categories, and in some cases tertiary categories (shown in brackets):
Grid Applications: Power Quality (Voltage Support; Frequency Regulation); Bridging Power (Reserve Capacity; Ramping / Load Following); Energy Management (Firm Capacity; Load Leveling/Arbitrage; Upgrade Deferral);
End-use Applications: Heating; Transportation-related; Demand charge reduction; Capacity / Backup; Bill Management; Diesel fuel reliance reduction
Flags: Microgrids; Resiliency; Reliability; Renewables Integration;