For nearly a decade, Bob has been fielding e-mail and phone questions, and now he's tackling your concerns on camera. In this segment, Carli asks Bob, "Why is Green Power more expensive?" Watch the story to see Bob's answer.

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Wind power has captured the public's imagination lately. In this segment, Tim asks Bob, "Is more electricity generated on windy days at the wind farm?" Watch the story to see Bob's answer.

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He wants to know "What is the most creative way you save energy?" We took his question out on the street and we bet you'll be suprised by some of the answers. Watch the story and see.

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