1. Frank J. Sprague, The transmission of power by electricity, J. Franklin Inst. 127 (3), pp. 161-176.
2. Webpage, assessed 14/11/2017 https://etap.com/solutions/generation/renewable-energy-solution.
3. Webpage, assessed 14/11/2017 http://www.eurostag.be/.
4. Webpage, assessed 14/11/2017 https://www.eee.hku.hk/∼cees/software/psapac.htm.
5. Product Data Sheet,2015