Status and Trends in the U.S. Voluntary Green Power Market (2017 Data)

Eric OShaughnessy, Jenny Heeter, Jennifer Sauer

Research output: NRELTechnical Report


Green power refers to renewable electricity voluntarily purchased by retail electricity customers. Renewable energy sources for green power include solar, wind, biomass, geothermal, and small-scale hydropower. This report summarizes data on the various ways in which voluntary purchasers - including residential, commercial, and institutional customers - purchase green power. We summarize key historic trends in U.S. voluntary green power markets and the current status of green power sales through seven products: utility green pricing programs, utility renewable contracts, competitive suppliers, unbundled renewable energy certificates, community choice aggregations, power purchase agreements, and community solar.
Original languageAmerican English
Number of pages60
StatePublished - 2018

NREL Publication Number

  • NREL/TP-6A20-72204


  • community solar
  • energy certificates
  • green power sales
  • hydropower


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