Abstract
This paper introduces a new proposed design and optimization simulation program for techno-economic sizing of stand-alone hybrid PV/wind/diesel/battery energy system. The main function of the new proposed simulation program (NPSP) is to determine the optimum size of each component of the hybrid energy system (HES) for lowest cost of kWh generated at highest reliability. An accurate methodology for pairing between five Saudi Arabia sites and ten wind turbines (WTs) from different manufacturers has been introduced. An economic methodology to obtain the price of the generated kWh has been introduced. The proposed program performed the optimal sizing steps in short time and high accuracy. Many valuable results can be extracted from the proposed program that could help researchers and decision makers.