“…Moreover, GEP problem is also solved by metaheuristic optimization techniques such as ant colony, tabu search, genetic algorithm, honey bee algorithm, artificial immune system, evolutionary programming, and PSO . Also, GEP studies are carried out by considering various single objectives such as minimizing planning cost, maximizing planning profit in deregulated electricity market, improving reliability, reducing environmental pollution, and considering demand‐side management programs . Eventually, GEP problem has been solved subject to several constraints such as reliability, environmental pollution, investment cost, and security …”