1. U.S. Wind Energy Capacity Statistics, American Wind Energy Association U.S. Wind Industry Annual Market Reports;AWEA,2015
2. American Wind Energy Association Q3 2016 Market Report, Quarter 3, 2016;AWEA,2016
3. Willingness to pay for renewable energy: implications for UK green tariff offerings;Batley;Indoor Built Environ.,2000
4. Interaction of Compliance and Voluntary Renewable Energy Markets;Bird,2007
5. Evaluating Renewable Portfolio Standards and Carbon Cap Scenarios in the U.S. Electric Sector;Bird,2010