Heuristic Dispatch Based on Price Signals for Behind-the-Meter PV-Battery Systems in the System Advisor Model

Research output: NRELPresentation

Abstract

The economic potential of a behind-the-meter (BTM) PV-battery system depends greatly on how the battery is dispatched. Different utility rates, system sizes, generation and load profiles can all require different dispatch strategies. This paper presents price signals dispatch, a new algorithm for automated economic dispatch of BTM PV-battery systems, which utilizes 24-hour PV and load forecasts, degradation data, and utility rates. The algorithm is integrated with the System Advisor Model (SAM) tool and is tested with a nonlinear generic electrochemical battery model. Price signals dispatch outperforms SAM's existing algorithms in cases requiring a balance between demand charge management and energy arbitrage, and in cases where battery degradation imposes a significant cost.
Original languageAmerican English
Number of pages8
StatePublished - 2021

Publication series

NamePresented at the 48th IEEE Photovoltaic Specialists Conference (PVSC 48), 20-25 June 2021

NREL Publication Number

  • NREL/PR-7A40-80293

Keywords

  • batteries
  • battery dispatch
  • behind-the-meter
  • SAM
  • solar plus storage
  • system advisor model

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