My ideas

[Zhibek]

From internet:"For instance, the combustion of butane (above) releases energy because there is a net shift of electron density away from carbon and hydrogen and onto oxygen. When an atom gains an electron, energy is usually released."
So if an atom gains an electron, energy is usually released, electron gives energy to an atom

Electrons transfer through covalent or ionic bonds ,electron gives energy to atom, electrons can be the cause of law of conservation of energy because electrons transfer energy through covalent or ionic bonds. Electrons can make energy field, people can make hyperdrive applying energy of electrons and people can make hyperdrive applying energy field based on electrons.