OGJ Editors, BP-statistical review of world energy 2014 63rd Edition BP, London, 2014
 Perez R., Kivalov S., Schlemmer J., Hemker K., Hoff T.E., 2012. Short-term irradiance variability: Preliminary estimation of station pair correlation as a function of distance. Solar energy, 2170-2176.
 Joakim Waiden, Ewa Wackelguard, Jukka Pateero and Peter Lond (December 2010) Impacts of distributed PVs on network voltages: Case study of 3 low voltage distribution grids in Sweden.
 Prabha Khundhar (1994), Power System Stability and Control, McGraw-Hill, Inc.
 Etherden, N. and Bollen, M. H. (2011), Increasing the hosting capacity of distribution networks by curtailment of renewable energy resources. IEEE Trondheim PowerTech.
 Rakebuzzaman Sahaha, N. Mithualananthana, C. R. Bunsulb, V. K. Ramchandara murthy, A review of key power system stability challenges for large scale PV integration, January 2015.
 Fareed Katiraei and Jullio Romiro Aguero (2011), Solar Photovoltaic Intgration Challennges, IEEE Power and Energy Magazine, vol. 8, no. 2, pages 61 - 70.
 F. Katiraei and J. R. Aguero, "Solar PV Integration Challenges," IEEE Power & Energy Magazine, pp. 62-71, May/June 2011.
 H. Lee Willis (2004), Power Distribution Planning Reference Book 2nd Edition, Raleigh, North Carolina: CRC Press.
 Math Bollen and Fainan Hassan, Integration of Distributed Generation in the Power System.
 R. Tonkoski, D. Turcott, and T. EI-Fouly, "Impact of high PV penetration on voltage profiles in residential neighborhoods," IEEE Trans. Sustainable Energy, vol. 3, no. 3, pp. 518- 527, Jul, 2012.
 Hadi Saadat ((2002) Power System Analysis, Published by McGraw-Hill Primis Custom Publishing, Boston, MA.
 C. Rodriguez and A. J. Amaratunga, “Dynamic stability of grid-connected photovoltaic systems”, IEEE Power and Energy Society General Meeting 2004.
 Heinrich. Habelin (2012), Photovoltaics System Design and Practice,Hoboken: John Wiley & Sons.