Status and Trends in the U.S. Voluntary Green Power Market (2015 Data)

Eric OShaughnessy, Jenny Heeter, Chang Liu

Research output: NRELTechnical Report


The voluntary green power market refers to the sale and procurement of renewable energy for voluntary purposes by residential and commercial customers. This report reviews seven green power procurement mechanisms: utility green pricing programs, utility green tariffs, voluntary unbundled renewable energy certificates, competitive supplier green power, community choice aggregations, voluntary power purchase agreements (PPAs), and community solar. This report details the status of trends of those seven green power procurement mechanisms in 2015. Three trends -- significant growth of the voluntary PPA project pipeline, innovative green power mechanisms developed by utilities, and geographic expansion of green power mechanisms -- suggest that the green power market is likely to continue to grow in coming years.
Original languageAmerican English
Number of pages52
StatePublished - 2016

NREL Publication Number

  • NREL/TP-6A20-67147


  • 2015
  • community choice aggregation
  • community solar
  • competitive supplier green power
  • green power
  • green tariffs
  • power procurement
  • power purchase agreement
  • power purchase agreements
  • renewable energy certificates
  • shared solar
  • status and trends
  • updated data
  • utilities


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