Small modular nuclear reactor integrated energy systems for in-situ, on-demand hydrogen generation and/or the production of sodium formate

An integrated energy system, comprising:

• a power grid, wherein the power grid has a first demand state and a second demand state greater than the first demand state;
• a sodium formate production system, wherein the sodium formate production system is configured to produce sodium formate;
• and
• a power plant system operably coupled to the power grid and the sodium formate production system, wherein the power plant system includes a plurality of nuclear reactors and an electrical power conversion system, wherein individual ones of the nuclear reactors are configured to heat a coolant into steam, and wherein—
• during the first demand state of the power grid, the power plant system is configured to have a first operating state in which (a) the steam from a first subset of the nuclear reactors is routed to the electrical power conversion system to generate electricity that is routed to the power grid and (b) the steam from a second subset of the nuclear reactors is routed to the sodium formate production system for use in producing the sodium formate and/or to the electrical power conversion system to generate electricity that is routed to the sodium formate production system for use in producing the sodium formate;
• and
• during the second demand state of the power grid, the power plant system is configured to have a second operating state different from the first operating state in which the steam from at least one of the nuclear reactors in the second subset is routed to the electrical power conversion system to generate electricity that is routed to the power grid.