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The Commission regulates four investor owned electric utilities that operate in Wyoming. In addition, the Commission also has regulatory authority over eighteen retail rural electric cooperatives that provide electric service within the state.
The PSC has the following primary duties regarding the regulation of electric utilities:
Integrated Resource Plan (IRP) Filings
An Integrated Resource Plan (IRP) is a recurring planning process undertaken by a public utility to identify the preferred mix of supply and demand side resources that will meet projected customer demand, provide service reliability and resource diversity at the least possible cost.
Commission Rule 253 pertains to Integrated Resource Planning. It states: "Any utility serving in Wyoming and required to file an integrated resource plan (IRP) in any jurisdiction, shall file that IRP with the Wyoming Public Service Commission. The Commission may require any utility serving in Wyoming to prepare and file an IRP when the Commission determines it is in the public interest. Commission advisory staff shall review the IRP as directed by the Commission and report its findings to the Commission in open meeting. The review may be conducted in accordance with guidelines set from time to time as conditions warrant."
2016 Interest Rate Set
Pursuant to Sections 241(c) and 504(f)(iii) of the Wyoming Public Service Commission’s (Commission) Procedural Rules and Special Regulations, the Commission set the interest rate payable on customer deposits held by gas, electric, and water utilities and telecommunications companies in the state of Wyoming, in its open meeting held on October 22, 2015. The interest rate is set at 1.75% per annum for the period of January 1, 2016, through December 31, 2016.
These downloadable files are available as Adobe Acrobat pdf files.