; and (2) $163,000,000 for fiscal year 2019. (d) Authorization of appropriations From within funds authorized to be appropriated under section 11 of the Department of Energy Science and Innovation Act of 2018 , for Fusion Energy Sciences, there is authorized for cash contributions under this section— (1) $50,000,000 for fiscal year 2018; and (2) $50,000,000 for fiscal year 2019. . (d) Inertial fusion energy research and development The Director shall support research and development activities for inertial fusion for energy applications. (e) Alternative and enabling concepts (1) In general As part of the program described in subsection (a), the Director shall support research and development activities and facility operations at United States universities, national laboratories, and private facilities for a portfolio of alternative and enabling fusion energy concepts that may provide solutions to significant challenges to the establishment of a commercial magnetic fusion power plant, prioritized based on the ability of the United States to play a leadership role in the international fusion research community. Fusion energy concepts and activities explored under this paragraph may include— (A) high magnetic field approaches facilitated by high temperature superconductors; (B) advanced stellarator concepts; (C) non-tokamak confinement configurations operating at low magnetic fields; (D) magnetized target fusion energy concepts; (E) liquid metals to address issues associated with fusion plasma interactions with the inner wall of the encasing device; (F) immersion blankets for heat management and fuel breeding; (G) advanced scientific computing activities