A \'smart\' energy grid differs from a conventional one in that: Question 3 opti

Question

A 'smart' energy grid differs from a conventional one in that:

Question 3 options:

1) Unlike the previous grid that relied on computers, a 'smart grid' has human operators that will determine the 'greenest' power sources available 2) This is a energy grid that is 'smart' because it only uses carbon free energy 3) This is a grid that adds a computer cable to the electrical cable in each American household, thereby managing electricity use in a way that previous human managers never could 4) This is an advertisement campaign put out by the utility companies that tells people to 'get smart' and unplug unused energy users, such as cell-phone chargers, when not in use.

Explanation / Answer

3) This is a grid that adds a computer cable to the electrical cable in each American household, thereby managing electricity use in a way that previous human managers never could.

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