; (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; and (H) other promising fusion energy concepts identified by the Director. (2) Coordination with ARPA–E The Under Secretary and the Director shall coordinate with the Director of the Advanced Research Projects Agency–Energy (in this paragraph referred to as ARPA–E ) to— (A) assess the potential for any fusion energy project supported by ARPA–E to represent a promising approach to a commercially viable fusion power plant; (B) determine whether the results of any fusion energy project supported by ARPA–E merit the support of follow-on research activities carried out by the Office of Science; and (C) avoid unintentional duplication of activities. (f) Coordination with ARPA–E The Director shall coordinate with the Director of the Advanced Research Projects Agency–Energy (referred to in this subsection as ARPA–E ) to— (1) assess the potential for any fusion energy project supported by ARPA–E to represent a promising approach to a commercially viable fusion power plant; (2) determine whether the results of any fusion energy project supported by ARPA–E merit the support of follow-on research activities carried out by the Office of Science