The regulators who oversee New York's power supply say that rules designed to protect waterborne life could be making the state's power plants less dependable. The new water rules would require plants to use closed cooling towers rather than water drawn from local rivers and bays -- but plant operators say that could force them to mothball or close some sites, increasing the strain on the remaining plants. "A broad, hard look at potential impacts of policy implementation on system reliability and emissions should be taken," regulators say.

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