“…Ghasemi et al 78 10, 15, 40, 140-unit Yes Yes Yes Yes Yes Artificial bee colony (ABC) 79,80 2007 AydıN and Özyön 81 3, 5, 6, 40-unit Yes No Yes Yes Yes Jadhav and Roy 82 6, 15, 40-unit Yes No Yes Yes Yes Basu 83 6, 10, 40-unit Yes Yes Yes No Yes Hemamalini and Simon 84 10, 13, 15, 40-unit Yes Yes Yes No Yes Shayeghi and Ghasemi 85 6, 14, 40-unit Yes No Yes No Yes Secui 86 6, 13, 40, 52-unit Yes No Yes Yes Yes Firefly algorithm (FFA) 87 2008 Yang et al 88 92 6, 13, 20, 40, 110-unit Yes No Yes Yes Yes Xiong et al 93 13, 15, 38, 40-unit Yes No Yes Yes Yes Cuckoo search algorithm (CSA) 94 2009 Vo et al 95 10, 15, 20, 30, 40, 80, 140, 160-unit 98 3, 6, 15, 40-unit Yes No Yes Yes Yes Gravitational search algorithm (GSA) 99 2009 Güvenç et al 100 6,10,11, 108 6, 13, 20, 40, 160-unit Yes Yes Yes Yes Yes Chemical reaction optimization (CRO) 109 2010 Bhattacharjee et al 110 13,40,110, No No Yes (Continues) load dispatch (ELD) problem that considers the units constraints is a very significant optimization problem in the power system operation. [1][2][3][4] The ELD problem is a nonlinear, nonconvex, and nonsmooth optimization problem because of the characteristics of valve-point loading (VPL) effect as a result of the multivalve steam turbine, the network transmission power losses, the ramp rate limits, and the prohibited operating zones (POZ) of power generation units. [4]…”