Implementation of Renewable Energy and Nuclear-Hydrogen Plants in Local Power Systems (on the Example of the Republic of Sakha (Yakutia))

The ORIRES model of expansion and operation of electric power systems is modified to factor in electrolysis hydrogen plants as electricity consumers with variable demand, which improve operating conditions of the electric power systems and produce hydrogen. The modified model is used in optimization calculations of the implementation of nuclear-hydrogen plants and renewable energy sources in the local power systems of Yakutia (Western, Central, and Southern) in the context of their expansion up to 2035. The calculations showed the technical and economic feasibility of these plants in local power systems of Yakutia, and the performance capabilities of these systems themselves. The scope of implementation of renewable and nuclear-hydrogen plants into the power systems of Yakutia was identified, their daily and seasonal load was calculated, and the conditions for such an implementation and the necessary levels of incentives to ensure it were determined.