SF4918

Purpose

• This bill relates to electric generation transition aid and changes how eligible taxing jurisdictions qualify for aid, as well as how the aid amount is calculated. It amends Minnesota statutes to update definitions and the method used to reduce aid when electric generating units retire or change fuel sources.

Key definitions (as used in the bill)

• Electric generating unit: a single generating unit at an electric generating plant powered by coal, nuclear, or natural gas.
• Electric generation property: taxable property of an electric generating plant owned by a public utility, powered by coal, nuclear, or natural gas, located in an eligible taxing jurisdiction.
• Eligible taxing jurisdiction: a county, city (including home rule charter or statutory cities), town, or school district.
• Unit base year: the assessment year when the assessed value of electric generation property is reduced due to retirement or fuel source conversion of an electric generating unit.
• Unit differential: the tax capacity of electric generation property in the assessment year before the unit base year minus the tax capacity in the unit base year. The unit differential cannot be negative.
• Special rule for small jurisdictions: the unit differential is zero if the preceding year’s tax capacity of electric generation property in the eligible jurisdiction is less than 4% of that jurisdiction’s total net tax capacity (as adjusted under specified statutes). For jurisdictions with multiple units, only the unit differential from the first retirement or fuel source conversion after the effective date is subject to this reduction.

Main provisions (what the bill changes or adds)

• Clarifies and formalizes how the unit differential is calculated for aid purposes.
  • Calculation basis: compare tax capacity in the assessment year before the unit base year to the unit base year.
  • Non-negativity: the unit differential cannot drop below zero.
  • 4% threshold rule: if the prior-year tax capacity for electric generation property is less than 4% of the jurisdiction’s total net tax capacity, the unit differential is set to zero.
  • First-retirement limit for multi-unit jurisdictions: in jurisdictions with multiple electric generating units, only the unit differential from the first retirement or fuel source conversion after the effective date is subject to the 4% threshold reduction.
• Applies to the definitions and calculations in the context of electric generation transition aid, by updating the relevant sections of Minnesota Statutes (2024 and 2025 supplements).

Significant changes to existing law (implications)

• Introduces a voluntary/automatic reduction mechanism (via the unit differential) tied to retirement or fuel source conversion events for electric generating units.
• Sets a floor (zero) for the unit differential, preventing negative aid calculations.
• Applies a 4% threshold test to reduce or eliminate unit differential in smaller or less-dominated jurisdictions, potentially reducing aid in those cases.
• Limits the reduction to only the first retirement or fuel source conversion in jurisdictions with multiple units, potentially leaving subsequent retirements unaffected by the 4% reduction rule.
• Changes are codified by amending the definitions and calculation rules in the statute governing electric generation transition aid.

Potential impact (summary)

• Jurisdictions with little reliance on electric generation property or with small share of tax capacity may see reduced or zero unit differential due to the 4% rule.
• Jurisdictions with multiple generating units will experience changes only from the first retirement/conversion after the effective date; later retirements may not trigger the same reduction.
• The overall framework for determining eligibility and the aid amount for electric generation transition aid is updated to reflect retirement and fuel-conversion events.

Relevant Terms - electric generating unit - electric generation property - eligible taxing jurisdiction - unit base year - unit differential - retirement - fuel source conversion - tax capacity - assessment year - total net tax capacity - 4 percent threshold - public utility - coal - nuclear - natural gas - Minnesota Statutes 2024 section 477A.24 - Minnesota Statutes 2025 Supplement section 477A.24