Dynamic simulation of a novel nuclear hybrid energy system with large-scale hydrogen storage in an underground salt cavern

In this study, a nuclear hybrid energy system (NHES) with large-scale hydrogen storage integrated gas turbine cycle is proposed as flexible for load following. The consists of reactor, steam Rankine cycle, electrolyzer, in an underground salt cavern, and Brayton that uses fuel to generate additional electricity meet peak demand. A dynamic mathematical model developed each subsystem the NHES. To evaluate potential benefits system, one-year study conducted, using scaled grid demand data from ISO New England. simulation results show capable meeting without outside sources 93% year, while decreasing number ramping cycles reactor by 92.7%. There also economic only had ramp up down 7.4% which increased capacity factor 86.3% 98.3%. improves flexibility power plants, provides more electricity, reduces greenhouse emissions.