The power grid is

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    the network of fluid-filled tubes in a roof-mounted solar water heater.
     also called the power tower, and has been taken out of service due to the costs of upkeep.
     the network of electrical lines that carry electricity from power plants to customers.
     the reaction chamber inside a hydrogen-oxygen fuel cell.
asked Jun 25, 2012 in Environmental Science by anonymous
    

1 Answer

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the network of electrical lines that carry electricity from power plants to customers.
answered Jun 26, 2012 by Geodude ~Top Expert~ (9,680 points)

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