New Report Documents Expanding Role of State Renewable Portfolio Standards

Read the full report.

State Renewable Portfolio Standards (RPSs) are increasing the proportion of electricity generated by renewable sources in more than 20 U.S. states, according to a report published on June 14, 2006, by the Pew Center on Global Climate Change. States are using RPSs to spur economic development and create a reliable and diversified supply of electricity, as well as to reduce greenhouse gas emissions and conventional pollutants.

The Pew Center report, entitled Race to the Top: The Expanding Role of U.S. State Renewable Portfolio Standards, examines challenges and opportunities inherent in RPS policy design and implementation and finds:

  • A high degree of bipartisan support is driving the rapid expansion of RPSs at the state level.
  • Economic development and job creation emerge as drivers in virtually every state.
  • States are grappling with issues such as electricity transmission capacity constraints, differential treatment of individual renewable sources, and facility siting concerns.
  • The biggest challenge in the future will likely revolve around the need for interstate collaboration and dialogue.

RPSs are also one of the recommended policies in EPA’s new Clean Energy-Environment Guide to Action, and are described in detail in Chapter 5 of the guide. The Guide to Action is available at

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