Hoka no enerugī ni yoru daitai mata wa chozō ga ichijirushiku konnan de aru enerugī no kyōkyū ni tsuite wa, toku ni sono shinraisei oyobi anteisei ga kakuho sareru yō shisaku ga kōjirarenakereba naranai.Measures must be taken to ensure in particular the reliability and the stability of the supply of energies for which storage or substitution of other energies is markedly difficult.