20180525Rocky Mountain Power ECAM Compliance Filing.pdf

1407 West North Temple, Suite 330
Salt Lake City, Utah 84116

May 25, 2018

VIA ELECTRONIC FILING
AND OVERNIGHT DELIVERY

Diane Hanian
Commission Secretary
Idaho Public Utilities Commission
472 W. Washington
Boise, ID 83702

Re: CASE NO. PAC-E-18-01
IN THE MATTER OF THE APPLICATION OF ROCKY MOUNTAIN POWER
REQUESTING APPROVAL OF $7.8 MILLON NET POWER COST DEFERRAL
WITH NO CHANGE TO RATES

Dear Ms. Hanian:

Please find enclosed clean and legislative copies of Rocky Mountain Power’s Electric Service
Schedule No. 94 – Energy Cost Adjustment, along with a copy of the tariff to be stamped and
returned to the Company after approval by the Commission. The Company’s original application
in this matter recommended no change to Schedule 94 rates; however, as part of a settlement in
Case No. GNR-U-18-01 - Investigation into the impact of federal tax code revisions on utility costs
and ratemaking, the parties agreed to use a portion of the tax savings to offset the 2013 depreciation
regulatory asset balance thereby enabling a reduction to Schedule 94.

Informal inquiries may be directed to Ted Weston, Idaho Regulatory Manager, at [phone].

Very truly yours,

Joelle Steward
Vice President, Regulation

Enclosures

CC: Ron Williams
Eric Olsen
Randall C. Budge
James R. Smith
RECEIVED
2018 May 25 AM 10:08
IDAHO PUBLIC
UTILITIES COMMISSION

Proposed Tariff Sheet

Eighth Revision of Sheet No. 94.1 I.P.U.C. No. 1 Canceling Seventh Revision of Sheet No. 94.1
ROCKY MOUNTAIN POWER
ELECTRIC SERVICE SCHEDULE NO. 94 STATE OF IDAHO
______________ Energy Cost Adjustment ______________
AVAILABILITY: At any point on the Company’s interconnected system. APPLICATION: This Schedule shall be applicable to all retail tariff Customers taking service under the Company’s electric service schedules.
ENERGY COST ADJUSTMENT: The Energy Cost Adjustment is calculated to collect the accumulated difference between total Company Base Net Power Cost and total Company Actual Net Power Cost calculated on a cents per kWh basis. MONTHLY BILL: In addition to the Monthly Charges contained in the Customer's applicable schedule, all monthly bills shall have applied the following cents per kilowatt-hour rate by delivery voltage.

Submitted Under Case No. PAC-E-18-01 ISSUED: May 25, 2018 EFFECTIVE: June 1, 2018
Seventh Eighth Revision of Sheet No. 94.1 I.P.U.C. No. 1 Canceling Sixth Seventh Revision of Sheet No. 94.1
ROCKY MOUNTAIN POWER
ELECTRIC SERVICE SCHEDULE NO. 94 STATE OF IDAHO
______________ Energy Cost Adjustment ______________
AVAILABILITY: At any point on the Company’s interconnected system. APPLICATION: This Schedule shall be applicable to all retail tariff Customers taking service under the Company’s electric service schedules.
ENERGY COST ADJUSTMENT: The Energy Cost Adjustment is calculated to collect the accumulated difference between total Company Base Net Power Cost and total Company Actual Net Power Cost calculated on a cents per kWh basis. MONTHLY BILL: In addition to the Monthly Charges contained in the Customer's applicable schedule, all monthly bills shall have applied the following cents per kilowatt-hour rate by delivery voltage.

Submitted Under Case No. PAC-E-17-02PAC-E-18-01 ISSUED: May 1125, 20187 EFFECTIVE: June 1, 20187