Energy currency of the cell is

Cellular energy can be stored in high-energy phosphate compounds, including adenosine triphosphate (ATP). This ubiquitous molecule is the energy storehouse of the body. On hydrolysis to adenosine diphosphate (ADP), it liberates energy directly to such processes as muscle contraction, active transpo, and the synthesis of many chemical compounds. Loss of another phosphate to form adenosine monophosphate (AMP) releases more energy.(REF: GANONG'S REVIEW OF MEDICAL PHYSIOLOGY -23rd EDITION. Page No-8)