A RESPONSIBLE RETROFIT

The Big Stone Plant air-quality control system (AQCS) balances our commitments to cost-effective service and environmental responsibility. The new system reduces nitrogen oxides, sulfur dioxide, and mercury emissions. The retrofit enables us to responsibly generate base-load electricity from coal at Big Stone Plant.

AQCS AT A GLANCE

    Construction-phase completion: 2015
    Project completion: 2016
    Budget: $384 million
    Regional economic impact: $125 million in payroll

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