This paper presents cuckoo search algorithm for solving both convex and nonconvex ED (economic dispatch) problems of fossil fuel fired generators considering transmission losses, multiple fuels, valve-point loading and prohibited operating zones. This paper also presents cuckoo search algorithm for micro grid power dispatch problem. Cuckoo search algorithm is a new meta-heuristic algorithm. It is a nature-based searching technique which is inspired from the obligate brood parasitism of some cuckoo species by laying their eggs in the nests of other host birds of other species. The effectiveness of the proposed algorithm has been verified on different test systems. Compared with the other existing techniques, considering the quality of the solution obtained, the proposed algorithm seems to be a promising alternative approach for solving the ED problems in practical power system and micro grid power dispatch problem.
