SAM's battery storage model is for the following types of batteries

  • Lead-acid
  • Lithium-ion
  • Vanadium redox flow
  • All iron flow

It can model the following types of battery storage projects:

  • Behind-the-meter projects where the battery is connected on the electricity customer's side of the electric utility meter.
  • Front-of-meter projects where the battery is connected on the electric utility's side of the meter or for utility-scale applications.
  • Peak shaving where the battery is used to reduce an electricity customer's monthly demand charge.
  • Energy arbitrage where the battery stores solar energy during the day and discharges at night.

Although SAM does not have a standalone battery model, a standalone storage system can be modeled using the techniques described in this webinar. NREL plans to add a standalone battery model to SAM in late 2019 or early 2020.

SAM's battery storage model is available with the Detailed Photovoltaic, PVWatts, and Generic System performance models.