The SAM web site will be upgrading Monday, May 23 from 4:00-5:00pm (Denver/mountain time). 

After doing a major change to our infrastructure, we have found a minor issue that we have corrected but will need to reboot the web site for it to take affect.

To make it as convenient as possible, we have scheduled it for Monday, May 23rd at 4:00pm (mountain). The process takes 15-20 minutes, but the site will only be unavailable for a short time. However, your session information will be lost (eg if you're writing a post, what you have written could be lost). 

Battery Updates for SAM 2021.12.02

This video describes new battery features for SAM 2021.12.02, including:

  • A brief introduction to the battery model
  • Reorganized user interface
  • Levelized cost of storage (LCOS) metric
  • New dispatch algorithms
  • Battery life models

Supporting materials:

Modeling Battery Systems in SAM 2020.2.29: Front-of-Meter Systems

Supporting materials:

Modeling Battery Systems in SAM 2020.2.29: Behind-the-Meter Systems

Supporting materials:

Modeling Battery Systems in SAM 2020.2.29: Focus on Technology

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How-to Videos

A quick video showing how to size a PV-plus-battery system in SAM:

Modeling Photovoltaic Battery Systems in SAM 2017.1.17

Nicholas Diorio describes and demonstrates the new battery model features in SAM 2017.1.17. These include:

  • DC-connected batteries
  • PV-battery systems with PPA financial models for utility-scale systems
  • Simple battery model for PVWatts
  • Improvements to automated dispatch algorithm

For an introduction to SAM's PV-battery model, see "Modeling a photovoltaic battery system in SAM 2016.3.14" below.

Supporting materials:

Modeling a Photovoltaic Battery System in SAM 2016.3.14

Nicholas DiOrio builds on the Modeling a Residential Photovoltaic System in SAM 2016.3.14 webinar by continuing the demonstration and adding a battery storage system to the residential photovoltaic system. We will cover battery design parameters, dispatch options, and analyzing battery results.

Supporting materials:

Battery Storage for Photovoltaic Systems, Sep 2015

Nicholas DiOrio describes the battery storage model that is part of SAM's detailed photovoltaic model on September 17, 2015.

Supporting materials:

Photovoltaic Battery Model Beta Version Introduction, Jun 2015

NREL's Nicholas DiOrio introduces a pre-release Beta version of SAM's new battery model for photovoltaic systems. For a more up-to-date presentation of the model, see Battery Storage for Photovoltaic Systems, Sep 2015 above.