One of the principal challenges of the 21st century is the reduction of human generated greenhouse gas emissions (GHG). The modern electric power sector is a large contributor to GHG due to its high utilization of fossil fuel-based sources. Fossil fuels have the benefit of high flexibility and relatively low cost (both capital and operating), with the drawback of high lifecycle emissions. Clean energy sources exist in the form of renewable and nuclear energy, but they are constrained operationally and financially. This thesis evaluates a hybrid energy system (HES) employing solar photovoltaics (PV) and wind turbine generators (WTG) electrically coupled with a small modular reactor (SMR) to provide flexible and cost-effective clean energy. Energy storage in the form of a battery energy storage system (BESS) for ramp rate regulation & frequency response and hydrogen (H2) via electrolysis as a co-product are employed to optimize these sources. A high-fidelity power model, using minute-scale environmental data, utilizing a detailed SMR plant model was developed to evaluate the dynamic operation, annual energy production, and financial viability of multiple HES configurations. Additionally, a transient model with sub-second time sampling was built to ensure the optimal economic solution can also meet bounding transient cases. As the result of this thesis show, an HES can meet the contemporary demands of contemporary power systems, but the financial viability is dependent on government subsidies, or significant progress being made on reducing SMR capital cost, or improving the value of hydrogen storage.