The objective of this paper is to design a load frequency controller for Autonomous hybrid power system with heuristic optimization approach like Differential Evolution Algorithm. A novel controller such as TID (Tilt-Integral-Derivative) Controller is employed to suppress the oscillations in the system that occurs due to variation or disturbances. The gain values of the controller are obtained by the DE algorithm. In order to allivate the effective nature of the proposed controller the responses are compared with the conventional PID controller in all test conditions applied. The DE tuned TID controller resembles stronger robustness properties than the conventional PID controller.