Following the lead of Illinois and New York, which have enacted policies supporting nuclear power plants, the Minnesota Legislature is weighing a bill that could help the owner of two nuclear facilities within its borders.

Minnesota is home to the single-unit 671-MW Monticello nuclear plant and the dual-unit 1,100-MW Prairie Island plant (Figure 1). Xcel Energy owns a 100% stake in both of them.

1. Home on the prairie. The Prairie Island Nuclear Generating Station generates about 20% of the electricity used by Xcel Energy’s customers in the Upper Midwest. Unit 1 began operation in December 1973 and Unit 2 followed in December 1974. The reactors are licensed until 2033 and 2034, respectively. Courtesy: Nuclear Management Co.

Current Minnesota regulations require investor-owned utilities, such as Xcel, to file multi-year integrated resource plans (IRPs) with the Minnesota Public Utilities Commission (MPUC). Companies give details about their future generation mix in the IRPs. Once the MPUC approves the plan, the utility decides how much money to allocate toward capital, and operations and maintenance expenses at each of its generation facilities.…

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