New federal regulations for coal- and oil-fired power plants, including one limiting emissions of toxic mercury, could potentially have an impact in Utah.

One of the state’s six major plants, PacifiCorp’s coal-burning Carbon plant in Price Canyon, has been slated for closure in 2020. But the proposed regulations could potentially affect the company’s decision on retiring the plant sooner, said Maria O’Mara of Rocky Mountain Power, whose parent company owns and operates Carbon.

“It’s been part of our planning process for a long time,” she said. “Federal environmental regulations have made us consider accelerating that date, but we haven’t made a final decision yet.”

She said the company has been talking about the future of the Carbon plant both internally and with state leaders.

The two-unit, 172-MW plant has been in operation since 1954.

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