1. I Pérez-Arriaga, A. Bharatkumar A Framework for Redesigning Distribution Network Use of System Charges Under High Penetration of Distributed Energy Resources New principles for New problems. 2014.
2. Virtual power plant and system integration of distributed energy resources;Pudjianto;Renew Power Gen,2007
3. Time in the Sun;von Appen;IEEE Power Energy Mag,2013
4. Greentech Media, Solar Energy Industries Association. U.S. Solar Market Insight. 2013.
5. International Energy Agency. CHP/DHC Country Scorecard: Denmark Energy Overview 2005:1–12.