This paper presents optimization of hybrid energy system for electrification of Rajasthan Technical University campus located at Kota, Rajasthan in India. The hybrid energy system comprises more than one energy sources such as solar PV-Diesel Generator or solar photo voltaic (PV)-wind turbine (WT)-Diesel Hybrid system. The main reason for hybrid energy system development is the reliability of solar and wind energy system decreases due to intermittent nature of these resources and availability. The hybrid system can efficiently utilize the resources as solar, wind, biomass, and transmission and distribution system. Electric load estimation is done according to IEC standards for institute. The component chosen for system is solar PV, small wind turbine, battery bank. Various sensitivity analysis and simulations are done to optimize the system using Optimization tool Hybrid Optimization Model for Electric Renewable (HOMER Pro). Fuel cell system did not use in the study due to non-availability of fuel, higher cost, and lower life time. The HOMER optimized the system in constrained of various costs of system, percentage of renewable energy uses, carbon emission, and electrical load requirement throughout the year.