REopt Lite Overview & Training Exercise

Kathleen Krah, Emma Elgqvist

Research output: NRELPresentation


This training exercise provides users with an introduction to and hands-on, interactive exploration of REopt Lite's capabilities. REopt Lite is a free, publicly available techno-economic optimization web tool for distributed energy systems, developed at the National Renewable Energy Laboratory (NREL). REopt Lite helps organizations evaluate the economic viability of grid-connected solar photovoltaics (PV), wind turbines, and battery storage; identify system sizes and battery dispatch strategies to minimize energy costs; and estimate how long a system can sustain critical load during a grid outage. The model is formulated as a mixed-integer linear program based in an underlying application programming interface (API) that is also free and publicly available. This training activity is structured as a group exercise. Participants split into eight groups and each group is assigned a different hypothetical site to model and assess the opportunity for solar PV + battery storage. Groups work together to develop results for their site and then re-convene to compare and discuss results, inputs/drivers of the analysis, and other factors impacting the decision-making process for behind-the-meter solar PV and battery storage.
Original languageAmerican English
Number of pages32
StatePublished - 2020

Publication series

NamePresented at the Advanced Energy Systems Program, 10 February 2020, Golden, Colorado

NREL Publication Number

  • NREL/PR-7A40-76043


  • battery storage
  • critical load
  • distributed energy
  • grid outage
  • grid-connected solar photovoltaics
  • PV
  • REopt Lite
  • techno-economic optimization
  • training
  • wind turbines


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