What molecule stores the energy of electrostatic repulsion?

The molecule that stores the energy of electrostatic repulsion is adenosine triphosphate (ATP). ATP contains high-energy phosphoanhydride bonds between its phosphate groups, which are negatively charged and repel each other. When these bonds are broken during hydrolysis, the stored energy is released and can be used for various cellular processes. This energy is essential for driving reactions that require work in biological systems.