1. Butler L, Neuhoff K. Comparison of feed-in tariff, quota and auction mechanisms to support wind power development. Working Paper, University of Cambridge, United Kingdom; 2004.
2. UK renewable energy policy;Connor;Renewable & Sustainable Energy Reviews,2003
3. Support systems for the diffusion of renewable energy technologies—an investor perspective;Dinica;Energy Policy,2006
4. European Commission [EC]. Directive 2001/77/EC of the European Parliament and of the Council of 27 September 2001 on the promotion of electricity produced from renewable energy sources in the internal electricity market; 2001.
5. European Commission. European Commission in the Directive on the promotion of the use of energy from renewable sources (COM(2008) 19); 2008.