; (L) support efforts to reduce any technical barriers that would prevent commercial application of advanced nuclear energy systems; and (M) develop various safety analyses and emergency preparedness and response methodologies. (3) Coordination The Secretary shall coordinate with individuals engaged in the private sector and individuals who are experts in nuclear non-proliferation, environmental and public health and safety, and economics to advance the development of various designs of advanced nuclear reactors. (4) Authorization of appropriations There are authorized to be appropriated to the Secretary to carry out the program under this subsection $55,000,000 for each of fiscal years 2021 through 2025. (c) Nuclear hybrid energy systems research, development, demonstration, and commercial application program (1) In general The Secretary shall carry out a program of research, development, demonstration, and commercial application to develop nuclear hybrid energy systems, composed of 2 or more colocated or jointly operated subsystems of energy generation, energy storage, or other technologies and in which not in which not less than 1 such subsystem is a nuclear energy system, to reduce greenhouse gas emissions in both the power and nonpower sectors. (2) Coordination In carrying out the program under paragraph (1), the Secretary shall coordinate with relevant program offices within the Department of Energy. (3) Focus areas The program under paragraph (1) may include research, development, demonstration, or commercial application of nuclear hybrid energy systems with respect to— (A) desalination of water; (B) hydrogen or other fuel production; (C) heat for industrial processes; (D) district heating; (E) heat storage; (F) carbon capture, use, utilization, and storage; (G) microgrid or island applications; (H) integrated systems modeling, analysis, and optimization, inclusive of different configurations of hybrid energy systems