This article discusses the energy sector of the Jewish Yishuv in Palestine during the late British Mandate period, from late 1947 to the Declaration of Independence in mid-May 1948. The article examines how the Yishuv’s leaders and those in charge of its energy supply prepared for the British withdrawal from Palestine and the measures taken to ensure the Yishuv's energy needs during this period. Until then, the Mandate authorities had seen to the Yishuv’s energy needs, a responsibility that would now be transferred to the institutions of the Jewish state upon its establishment. Were their actions solely focused on the preparations for war or also on preparations for the creation of the state? Archival and other primary sources were used by the author. In addition to analyzing technical information, the article seeks to highlight the individuals who were involved in preserving and securing the energy supply of the Jewish Yishuv. These were resourceful and visionary individuals who used creativity, initiative, and boldness to enable the Yishuv to solve its problems and to navigate between various political and economic interests and the needs of the economy and the military. They successfully steered the rickety ship of the energy sector during the intercommunal war in Palestine and prepared the infrastructure for the energy sector of a sovereign state after the Declaration of Independence.