We can... but we still need to work on the technology to minimize energy loss and maximize return. There are currently six promising energy storage technologies: pumped hydropower, compressed air energy storage, batteries, flywheels, superconducting magnetic energy storage, and electrochemical capacitors.
the universe is electric. you can make electricity but in order to contain it, to solidify it you need to flow data to it! give it a structure which will give it a specific form and then you can extent your subcouncious on the object formed to prevent the object created from dematerilise itself 20 minutes later.