“…There are various energy storage technologies currently in use for distributed renewable energy integration, such as battery [2,3], flywheel [4,5], compressed air [6], fuel cell [7,8], Supercapacitor [9,10], and pumped hydro [11,12]. A good review http://dx.doi.org/10.1016/j.apenergy.2014.06.005 0306-2619/Ó 2014 Elsevier Ltd. All rights reserved.…”