Evolutionary programming (EP) Classical evolutionary programming (CEP) 2 Fast evolutionary programming (FEP) 2 Artificial neural network (ANN) 1 Cuckoo search algorithm (CSA) 1 Distributed generation (DG) 1 Dolphin echolocation algorithm (DEA) 1 Fast voltage stability index (FVSI) 1 Firefly algorithm (FA) 1 Generation expansion planning 1 Grasshopper optimization algorithm (GOA) 1 Grid-connecetd photovoltaic (GCPV) 1 Load duration curve (LDC) 1 Minimization of error 1 Optimization technique 1 Performanca ratio (PR) 1