This article discusses the directions for energy systems based on an urgent proposal to counter the energy crisis in eastern Japan, published from the Society of Chemical Engineers, Japan. We first illustrate the situation Japan faces, highlighting the urgency and seriousness of the consequences of power outages in industry and daily life. Then, we elaborate on the necessity for policy support to trigger collective actions to temporarily practice countermeasures that would not necessarily save resources or that could disrupt society's established routines. In this way, Japan can choose technologies without regret based on society-wide discussions on the future energy supply. Finally, we warn of the drawbacks induced by shortsighted decisions e. g., avoiding power outages by depending on less-efficient gas turbines. We conclude that Japan should commence a transition of its energy systems rather than compromising resource efficiency and grid robustness over the next decades.