The legislative bill S.F. No. 1455 aims to modify the definition of what constitutes a "large energy facility" in Minnesota. Essentially, it sets specific criteria for various types of energy facilities to be categorized under this definition. These criteria include:

1. Electric power generating plants or combinations of plants at a single site with a combined capacity of 50,000 kilowatts or more, along with associated transmission lines required to connect the plant to the transmission system.
2. High-voltage transmission lines capable of carrying 300 kilovolts or more and extending more than one mile within Minnesota.
3. High-voltage transmission lines capable of carrying 100 kilovolts or more with more than ten miles of their length in Minnesota.
4. Pipelines that are greater than six inches in diameter and extend more than 50 miles within Minnesota, used for transporting coal, crude petroleum, petroleum fuels or oil, or their derivatives.
5. Pipelines for transporting natural or synthetic gas at pressures exceeding 200 pounds per square inch and extending more than 50 miles within Minnesota.
6. Facilities that can store more than 100,000 gallons of liquefied natural gas or synthetic gas.
7. Underground gas storage facilities requiring specific permits.
8. Any nuclear fuel processing or nuclear waste storage or disposal facilities.
9. Facilities intended to convert material into combustible fuel with the capacity to process more than 75 tons of material per hour.

By amending Minnesota Statutes 2024 section 216B.2421 subdivision 2 to incorporate these definitions, the bill specifies what forms of infrastructure will be recognized and regulated as large energy facilities.