All countries attach great importance to renewable energy investments with concern that future fossil-fueled energy resources could be exhausted. Thus, a very large renewable energy production potential may be predicted in not a very distant future. This study is about optimal energy production from wind and hydroelectric power plants at a small scale settlement center. A water resources system with multiple reservoirs in which wind power plants are located around the basin is described in this study. The system has three scenarios, in which wind and hydroelectric power plants are integrated, separated and no wind turbines. In the integrated scenario, by the energy generated in the wind power plants, the released flows from the reservoirs are sent to the reservoirs as a use again. In models of every scenario, optimal operational models for long-term planning are established on the system. The technique of dynamic programming with successive approximations is used in these models. The models are applied to a water resources system with multiple reservoirs presented successively on the main line of the Ceyhan River in the Ceyhan Basin. The results obtained here are evaluated in terms of three scenarios developed for energy production. As a result, it has been seen that the systems of the integrated and separated scenario are similar to energy productions and system without wind turbines produces more little energy production to other scenarios.

Optimal planning and operation of water resources are depend on a complex structure and process that include country economics and life standards. Currently, sustainable use and development of water resources to maximize possible benefits are the two big challenges to be overcome and efficient use of hydro power forms a significant component of this. In this study, a water resources system with multi-objectives and multiple reservoirs is described. It is considered to three scenarios in this system. The system is set up on the optimal operation model for the long term planning. The technique of the dynamic programming with successive approximations is used for the model. Objective function in the optimization model has two stage, maximization of firm and total energies. The model is applied to a water resources system with multi-objective and multiple reservoirs presented successively on the main and secondary line of the Yeşilırmak River in the Yeşilırmak River Basin. Results obtained are evaluated to the maximization of the energy production. Accordingly, the firm energy obtained from the optimal operational model for long term planning is presented approximate the value determined by empiric equations, and also the average energy in the model is % 32 better than the value determined by empiric equations. It is observed that the optimization process of the reservoirs with the highest operational storage was controlled and managed.