1. Roadmap 2050: a Practical Guide to a Prosperous, Low-carbon Europe;ECF (European Climate Foundation),2010
2. Climate-friendly, Reliable, Affordable: 100% Renewable Electricity Supply by 2050;SRU (German Advisory Council on the Environment),2010
3. Special Report on Renewable Energy Sources and Climate Change Mitigation: Final Release;IPCC,2011
4. Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience, Summary for Policymakers;Cochran,2012