Techno-Economic Analysis Using REopt for Community Solar on Multifamily Affordable Housing Properties

Amanda Farthing, Emma Elgqvist

Research output: NRELPresentation


Multifamily affordable housing (MFAH) providers can identify and prioritize properties in their portfolios for which community solar development is feasible by following portfolio screening steps in a process outlined by NREL. Once MFAH providers have identified the most feasible sites, they can conduct more detailed analyses for a select number of sites to assess how distributed energy resources such as solar plus storage can help them meet their goals. The step is completed using NREL's REopt (, a free techno-economic optimization model that determines DER sizes and dispatch strategies that minimize the life cycle cost of energy at a site. This presentation describes how to perform this step using REopt to help MFAH providers answer questions such as: What size solar PV system will result in the most energy bill savings at this site? What size solar-plus-storage system would be needed to power critical loads through a utility grid outage? What is the financial impact of rate switching, net metering, and/or meter aggregation? What percentage of the site's load can be offset with renewable energy? What are the emissions benefits of this renewable generation?
Original languageAmerican English
Number of pages50
StatePublished - 2022

NREL Publication Number

  • NREL/PR-7A40-82967


  • community solar
  • multifamily affordable housing
  • REopt
  • technoeconomic analysis


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