API field
State-of-charge window
Floor, ceiling and starting state of charge
Unit %
What it is
The floor and ceiling of the usable window as percentages of the capacity, and the state of charge before the first timestep. The state of charge never leaves the window, and cycles are counted on the usable window.
Typical values and how to get it
Leave the defaults (0 %, 100 %, 0 %) unless the rating includes a reserve. Set the starting value to 100 % to begin the year with a full battery.
References
- NREL 2019, "Grid-Scale Battery Storage: Frequently Asked Questions", NREL/TP-6A20-74426
API
storage.soc_min, storage.soc_max, storage.soc_initial — sent as a fraction 0–1