Energy storage
Many renewable energy as a source of energy which cannot always be utilized because a limitation (solar energy, wind, etc.), but can be used to fill in the supply of energy while other sources of energy are stored for use on electric transmission network, or the energy source used to fill out the electrical system network when required. If the loss of energy when the distribution and costs can be set, then this type of energy can become a mainstay.
Solar energy, even though it currently cannot be used throughout the day, but currently have designed solar energy satellites are useful for capturing the energy of the Sun via satellite through outer space and didstribusikan to Earth in different ways so that the solar energy utilization can become longer with the amount of energy taken bigger (because the Sun's energy in space greater than solar energy that has touched the surface of the Earth).
