1. Opportunities and challenges for a sustainable energy future
2. IPCC , in Global warming of 1.5 degrees C. – Summary for Policymakers , ed. V. Masson-Delmotte , P. Zhai , H. O. Pörtner , D. Roberts , J. Skea , P. Shukla , A. Pirani , W. Moufouma-Okia , C. Péan , R. Pidcock , S. Connors , J. Matthews , Y. Chen , X. Zhou , M. Gomis , E. Lonnoy , T. Maycock , M. Tignor and T. Waterfield , World Meteorological Organization , Geneva, Switzerland , 2018 , book section SPM, pp. 1–32
3. Alternatives No More: Wind and Solar Power Are Mainstays of a Clean, Reliable, Affordable Grid
4. US Department of Energy (DOE) , Grid Modernization Multi-Year Program Plan , 2015
5. The Evolution of the Market: Designing a Market for High Levels of Variable Generation