Pursuant to the Wyoming Administrative Procedure Act and the Wyoming Public Service Commission’s (Commission) Rules, notice is hereby given of the Application of Rocky Mountain Power (RMP or the Company) for authority to revise Section II. of Rule 6, as more fully described below.

RMP is a public utility as defined in Wyo. Stat. § 37-1-101(a)(vi)(C), subject to the Commission’s jurisdiction pursuant to Wyo. Stat. § 37-2-112.

RMP filed its Application on September 12, 2019, requesting authority to revise Section II. of Rule 6 (Company’s Installation) to include a new option for customers to receive single phase 240/480 volt (240/480V) secondary service. According to RMP, approximately forty percent of its distribution lines are constructed as single phase power and the lack of three phase supply can create challenges for customers with equipment that requires three phase service. In particular, electric motors (typically used for irrigation, sewage lift stations, mine ventilation, etc.) have limited commercial availability in single phase ratings above 7.5 horsepower.

RMP states that the cost to extend three phase primary lines ranges from $60,000 to $150,000 per mile and approval of the Company’s proposal would reduce costs to provide this particular electrical service to the number of commercial applications that will benefit from the 240/480V option. RMP states that providing the service will have very little impact to the Company’s current construction standards, practices and inventory requirements.

This is not a complete description of the Application. Interested persons may inspect the Application at RMP’s business offices throughout Wyoming and at the Commission’s offices in Cheyenne, Wyoming, during regular business hours.

Anyone desiring to file a public comment, statement, intervention petition, protest or request for a public hearing in this matter must do file with the Commission in writing on or before November 4, 2019. Any intervention request filed with the Commission shall set forth the grounds of the proposed intervention or request for hearing as well as the position and the interest of the petitioner in this proceeding.

If you wish to intervene in this matter or request a public hearing which you will attend and you require reasonable accommodation for a disability, call the Commission at (307) 777-7427 or write to the Commission, 2515 Warren Avenue, Suite 300, Cheyenne, Wyoming 82002. Communications-impaired persons may contact the Commission through Wyoming Relay at 711. Please mention Docket No. 20000-567-ET-19 (Record No. 15349) in your communications.

Dated: October 4, 2019.

Publish: October 10 and 17, 2019

Legal No. 4229


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