20190913Application.pdf

Y ROCKY MOUNTAIN
POWER
A DIVISION OF PACIFICORP
P.ECEIVED
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Joelle R. Steward
Vice President, Regulation
1407 West North Temple, Suite 330
Salt Lake City, UT 84116
September 13,2019
VA OVERNIGHT DELIVERY
Diane Hanian
Commission Secretary
Idaho Public Utilities Commission
472W Washington
Boise,Idaho, 83702
Re CASE NO. PAC.E-I9.I2
IN THE MATTER OF THE APPLICATION OF ROCKY MOUNTAIN POWER
FOR AUTHORITY TO REVISE ELECTRIC SERVICE REGULATION NO. 6 .
COMPAITY'S INSTALLATION
Dear Ms. Hanian:
Enclosed for filing in the above referenced matter are an original and seven (7) copies of Rocky
Mountain Power's application requesting authority to revise paragraph 1 of Electric Service
Regulation No. 6 - Company's Installation, to include a new option for customers to receive single
phase 2401480 volt secondary service.
Please contact Ted Weston, Idaho Regulatory Affairs Manager at [phone] if you have
any questions.
V truly yours,
R.
Vice President, Regulation
"^-D
Enclosures
Daniel E. Solander
Senior Counsel
1407 West North Temple, Suite 320
Salt Lake City UT 841l6
Telephone: (801 ) 220-4014
Facsimile No. [phone]
Email: [e-mail]
Attorneyfor Roclqt Mountain Power
BEFORE THE IDAHO PUBLIC UTILITES COMMISSION
11[CEIVED
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IN THE MATTER OF THE
APPLICATION OF ROCKY MOUNTAIN
POWER FOR AUTHORITY TO REVISE
ELECTRIC SERVICE REGULATION NO.
6 . COMPANY'S INSTALLATION
CASE NO. PAC.E.I9.I2
APPLICATION
COMES NOW, Rocky Mountain Power (the "Compffiy"), and hereby respectfully
applies to the Idaho Public Utilities Commission (the "Commission") for authority to revise
paragraph I of Electric Service Regulation No. 6 - Company's Installation to include a
new option for customers to receive single phase 2401480 volt secondary service.
Attachment 1 to this application contains a clean and legislative copy of Regulation No. 6
with the proposed revisions.
In support of this Application, the Company states as follows:
1. Rocky Mountain Power is a division of PacifiCo{p, ilr Oregon corporation,
which provides electric service to retail customers through its Rocky Mountain Power
division in the states of Idaho, Utah, and Wyoming, and through its Pacific Power division
in the states of Califomia, Oregon, and Washington.
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1
2. Rocky Mountain Power is a regulated public utility in the state of Idaho and
is subject to the Commission's jurisdiction with respect to its prices and terms of electric
service to retail customers in Idaho.
BACKGROUND
3. Approximately 40 percent of the Company's distribution lines are
constructed as single phase power. The lack of three phase supply can create challenges
for customers with equipment that requires three phase power. In particular, electric motors
that are typically used for irrigation, sewage lift stations, mine ventilation, etc. have limited
commercial availability in single phase ratings above 7.5 horsepower. Costs to extend three
phase primary lines can range from $60,000-$150,000 per mile.
4. If capacity is available on an existing single phase line, a three phase supply
can be derived from a variable frequency drive or rotary phase converter. Allowing the
Company to provide single phase 2401480 volt service can reduce customer costs when
only single phase is available. On average, 480 volt class phase converters and motors are
10 to 25 percent less expensive than 240 voltclass phase converters, and additional savings
can be realized in wiring and conduit costs.
5. For example, single phase 2401480 volt service is the typical voltage for a
number of transportation agencies for roadway lighting. As lighting circuits may extend
for several miles, single phase 2401480 volt service is used to reduce both wiring costs and
voltage drop. Providing 2401480 volt service will reduce transportation agency costs by
eliminating the need to install 2:l step-up transformers to obtain 2401480 volt service from
the currently available 1201240 volt services.
2
6. Direct current ("DC") fast charging for electric vehicles is an emerging use
for 2401480 volt service. At this time all commercially available options for DC fast
charging require three phase power. The Company has had discussions with several
vendors with single phase solutions under development, in order to enable DC fast charging
in areas where only single phase is available. Having 2401480 volt service will reduce
service entrance wiring and altemating current rectification stage costs compared to the
cost if only 1201240 volt service were available.
7. Accommodating single phase 2401480 volt service will have very little
impact to the Company's current construction standards, practices and inventory
requirements. Additional inventory will be required to support pad-mount transformer
installations but no impact to overheard transformer inventory levels is anticipated. The
Company's current standards and equipment support the metering of 2401480 volt single
phase services and no impact to system planning is anticipated with the introduction of
single phase 2401480 volt service.
8. Providing single phase 2401480 volt service will benefit customers and have
minimal impact to the Company's operations or costs. There are a number of commercial
applications that will benefit from the 2401480 volt option when selecting equipment,
which can help reduce customer costs.
COMMUNICATIONS
9. Communications regarding this filing should be addressed to:
Ted Weston
Rocky Mountain Power
Regulatory Affairs Manager
1407 West North Temple, Suite 330
Salt Lake City, UT 84116
E-mail : ted.weston@pacifi corp.com
aJ
Daniel E. Solander
Senior Counsel
Rocky Mountain Power
1407 West North Temple, Suite 320
Salt Lake City, UT 841l6
E-mail : daniel. solander@oacifi corp.com
In addition, the Company respectfully requests that all data requests regarding this
matter be addressed to:
By e-mail (prefened):
By regular mail:
datareq ue st@pacifi com.com
Data Request Response Center
PacifiCorp
825 NE Multnomah St, Suite 2000
Portland, OR97232
Informal inquiries may be directed to Ted Weston, at [phone].
MODIFIED PROCEDURE
10. Rocky Mountain Power believes that a hearing is not necessary to consider
the issues presented herein and respectfully requests that this Application be processed
under Modified Procedure; i.e., by written submissions rather than by hearing, RP 201. Il
however, the Commission determines that a technical hearing is required, the Company
stands ready to prepare and present testimony in such hearing.
REOUEST FOR RELIEF
WHEREFORE, Rocky Mountain Power respectfully requests that the Commission
issue an order authorizing that this matter be processed under Modified Procedure and
approving the addition of 2401480 volt as a secondary service standard voltage option to
paragraph 1 of RegulationNo. 6 - Company's Installation as shown in Attachment 1 to this
Application.
4
DATED this 13th day of September ,2019
Respectfulb submitted,
Or,l 4,fih
Daniel E. Solander
Attorney for PacifiCorp
5
ROCKY MOUNTAIN
POWER
A OTVTSTON OF PACTFTCORP
I.P.U.C. No. I
Firs+SeconllRevision of Sheet No. 6R.1
Canceling @Sheet No. 6R.1
l.
ELECTRIC SERVICE REGULATION NO. 6
STATE OF IDAHO
Company's Installation
COMPANY'S INSTALLATION
Except as otherwise provided in these Regulations, an Electric Service Agreement, or the Electric
Service Schedules, the Company will install and maintain its lines and equipment on its side of the
Point of Delivery, but shall not be required to install or maintain any lines or equipment except
meters and accessories beyond that point. Only the Company is authorized to make the connections
at the Point of Delivery. Electric service furnished under this tariff will be alternating current, 60
hertz, single or three-phase. Primary service voltage will be at one of the nominal standard voltages
available from the Company at or near the Customer's location. Secondary service voltage will be
limited to:
Single-phase, 120 volts, 2-wire, grounded
Single-phase, 1201240 volts, 3-wire, grounded
Sinele-phase. 240l480 volts. 3-wire. erounded
Three-phase, 208Y / 120 volts, 4-wire, grounded, wye
Three-phase, 480Y /277 volts, 4-wire, grounded, wye
2.COMPANY FACILITIES ON CUSTOMER'S PREMISES
(a) All materials furnished and installed by the Company on the Customer's premises, shall be,
and remain, the properly of the Company. The Customer shall not break the Company's
meter seals. In the event of loss or damage to the Company's property, arising from neglect,
carelessness, or misuse by the Customer, the cost of necessary repairs or replacement shall
be paid by the Customer.
(b)Customer without expense to the Company shall make or procure conveyance to the
Company of satisfactory Rights-of-Way Easements across the property owned or controlled
by the Customer for the Company's lines or extensions thereof necessary or incidental to the
furnishing of service to the Customer.
(c)The Customer shall permit safe, access to Company's representatives at all hours to maintain
the Company's electric distribution facilities. The Customer shall also permit the Company
to trim trees and other vegetation to the extent necessary to avoid interference with the
Company's lines and to protect public safety.
(d)The Customer shall provide safe, unencumbered access to Company's representatives at
reasonable times, for the purpose of reading meters, inspecting, repairing or removing
metering devices and wiring of the Company.
Submitted Under TariffAdviee Ne, l5 O3Case No. PAC-E-19-12
ISSUED: EFFECTIVE:
ROCKY MOUNTAIN
POWER
A OTV|S|ON OF PACTFTCORP
I.P.U.C. No. I
Second Revision of Sheet No. 6R.1
Canceling First Revision of Sheet No. 6R.1
1
ELECTRIC SERVICE REGULATION NO.6
STATE OF IDAHO
Company's Installation
COMPANY'S INSTALLATION
Except as otherwise provided in these Regulations, an Electric Service Agreement, or the Electric
Service Schedules, the Company will install and maintain its lines and equipment on its side of the
Point of Delivery, but shall not be required to install or maintain any lines or equipment except
meters and accessories beyond that point. Only the Company is authorized to make the connections
at the Point of Delivery. Electric service furnished under this tariff will be alternating current, 60
hertz, single or three-phase. Primary service voltage will be at one of the nominal standard voltages
available from the Company at or near the Customer's location. Secondary service voltage will be
limited to:
Single-phase, 120 volts, 2-wire, grounded
Single-phase, 1201240 volts, 3-wire, grounded
Single-phase, 2401480 volts, 3-wire, grounded
Three-phase, 208Y I 120 volts, 4-wire, grounded, wye
Three-phase, 480Y 1277 volts, 4-wire, grounded, wye
COMPANY FACILITIES ON CUSTOMER'S PREMISES(a) All materials furnished and installed by the Company on the Customer's premises, shall be,
and remain, the property of the Company. The Customer shall not break the Company's
meter seals. In the event of loss or damage to the Company's property, arising from neglect,
carelessness, or misuse by the Customer, the cost of necessary repairs or replacement shall
be paid by the Customer.
(b)Customer without expense to the Company shall make or procure conveyance to the
Company of satisfactory Rights-of-Way Easements across the property owned or controlled
by the Customer for the Company's lines or extensions thereof necessary or incidental to the
furnishing of service to the Customer.
(c)The Customer shall permit safe, access to Company's representatives at all hours to maintain
the Company's electric distribution facilities. The Customer shall also permit the Company
to trim trees and other vegetation to the extent necessary to avoid interference with the
Company's lines and to protect public safety.
(d)The Customer shall provide safe, unencumbered access to Company's representatives at
reasonable times, for the purpose of reading meters, inspecting, repairing or removing
metering devices and wiring of the Company.
2.
Submitted Under Case No. PAC-E-19-12
ISSUED: September 13,2019 EFFECTM: December 12, 2019