One of the main concerns posed to power generation operations is the problem of economic dispatch. This problem can be resolved by minimizing fuel costs and satisfying system constraints to generate optimal amounts of power from generating units in the system. The accuracy of this solution depends on fuel cost parameters within the generating units. This paper explores a solution method for this economic dispatch problem and thermal generator units in power systems. To examine this solution,

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... input/output curves of the generators are considered as a quadratic function. In addition, a least-squares method is utilized to calculate the coefficient of these quadratic functions. To consolidate the suggested approach, a case study is analyzed by considering the generators of the IEEE Reliability Test System (IEEE -RTS). The results garnered from this application are then presented. Some of the results are verified with corresponding literature, thus proving the performance of computational algorithms successful.