In the daytime, when the sun is at its strongest, solar panels like these and electricity stored in car batteries will be able to power the grid with affordable, emission-free energy.

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Without the need to electrically charge devices--either via outlets or USB cables--users could at last start to break free from on-the-grid power connections.

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One measure is free grid connection for small-and-medium-scale solar power producers.

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The Smart Grid provides reliable power that is relatively interruption-free.

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