Incorrect, energy mainly refers to fossil energy and various materials and potential energies that store energy. Boiling water converts this energy into usable mechanical energy. In addition to boiling water, there is also air combustion, such as internal combustion engines. jet engines and thrusters, and the electromagnetic use of magnetism, boiling water is just a means of energy conversion, not the energy we want.
Yes, electricity cannot be stored in large quantities, otherwise we can store it. The large amount of electrical energy generated by lightning eliminates the need to generate electricity. But if we all save electricity, peak electricity consumption will be reduced, so we won't need to start more units, thereby reducing energy consumption. Water also has a life cycle. If we don't save water, it increaseswill increase the cost of water treatment and cause water pollution.