20171026Staff 1-23 to INT.pdf

CAMILLE CHRISTEN
DEPUTY ATTORNEYS GENERAL
IDAHO PUBLIC UTILITIES COMMISSION
PO BOX 83720
BOISE, IDAHO 83720-0074
[phone]
IDAHO BAR NO. IOI77
5 Fi'i ?: Xt
Street Address for Express Mail:
472 W . WASHINGTON
BOISE, IDAHO 83702-5918
Attorneys for the Commission Staff
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF INTERMOUNTAIN GAS
COMPANY'S 2OI7 -202 1 INTEGRATED
RESOURCE PLAN.
CASE NO. INT-G-17-04
FIRST PRODUCTION
REQUEST OF THE
COMMISSION STAFF TO
INTERMOUNTAIN GAS
COMPANY
The Staff of the Idaho Public Utilities Commission, by and through its attorney of record,
Camille Christen, Deputy Attorney General, request that Intermountain Gas Company
(lntermountain Gas; Company) provide the following documents and information as soon as
possible, or by THURSDAY, NOVEMBER 16, 2017.
This Production Request is continuing, and the Company is requested to provide, by way of
supplementary responses, additional documents that it or any person acting on its behalf may later
obtain that will augment the documents produced.
Please provide answers to each question, supporting workpapers that provide detail or are
the source of information used in calculations. The Company is reminded that responses pursuant
to Commission Rules of Procedure must include the name and phone number of the person
preparing the document, and the name, location and phone number of the record holder and if
different the witness who can sponsor the answer at hearing if need be. Reference IDAPA
31.01.0t.228.
FIRST PRODUCTION REQUEST
TO INTERMOUNTAIN GAS
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ocToBER 26,20171
In addition to the written copies provided as response to the questions, please provide all
Excel and electronic files on CD with formulas activated.
REQUEST NO. 1: On page 7l of the IRP, the Company describes collaboration with GTI
on a NextAire heat pump project. Please describe findings and conclusions from this project.
Please describe any additional research and development activities conducted or supported by the
Company, during the last two years.
REQUEST NO. 2: Please describe the Company's efforts to obtain public and stakeholder
participation in development of the 2017 IRP. How, if at all, did these efforts differ from previous
IRP processes?
REQUEST NO. 3: Please describe the Company's participation in the Idaho Building
Code Collaborative over the last two years and how participation in the group has affected business
practices and energy efficiency initiatives.
REQUEST NO. 4: On page 5 of the IRP, the last sentence states that "all peak day
demands can be met over the FY15 through FY19 forecast period:" The table on page 5 shows
years FYlT through FY21 with no deficits. Please explain why the narrative and table do not depict
the same forecast period and if any deficits exist for FYl7 through FY21. If deficits do exist please
quantify them and explain how they will be resolved.
REQUEST NO. 5: On page 8 of the IRP, biogas production in Canyon County is
mentioned as a method of enhancing distribution. Please explain more fully and provide
documentation that describes biogas alternatives being explored, their volumetric potential, when
they may become viable, and a description of potential costs and benefits.
REQUEST NO. 6: On page 9 of the IRP, an additional 8500 therms of incremental sendout
in FYl9 is listed for Industrial on the State Street lateral. Please explain why an additional 8500
therms is required, how the number of therms was determined, and how this requirement will be
satisfied.
FIRST PRODUCTION REQUEST
TO INTERMOLINTAIN GAS 2 ocToBER 26,20t7
REQUEST NO. 7: Page 28 of the IRP contains a conversion rate table with projections
from alternate fuel sources (electric, oil, coal, wood, others). Please explain how this table was
developed and how it compares to actual conversions over the last 5 years.
REQUEST NO. 8: On page 46 of the IRP, the Company states thatT}Yo of its supply is
from the Western Canadian Sedimentary Basin (WCSB). Please provide a ten year historical view
of purchases by basin to include volumes, prices, and percentages of total by basin.
REQUEST NO. 9: On page 51 of the IRP, the Company says it has obtained the maximum
amount of available Rockies capacity. Please explain why obtaining Rockies capacity is the best
economic alternative for the Company and its customers compared to other supply regions.
REQUEST NO. 10: On pages 52 and 53 of the IRP, the Company describes its supply
portfolio. Please provide a 5 year historical view of the portfolio mix by volume using the five
types (long-term, short-term, spot, winter baseload, Citygate delivery) listed on page 53.
REQUEST NO. 11: On page 54 of the IRP, the Company refers to its Gas Supply
Committee. Please describe the committee's charter, deliverables, members, meeting structure and
schedules. Please provide committee meeting minutes for the last two years.
REQUEST NO. 12: On page 59 of the IRP, the Company states; o'In the long run, many
forecasts predict tightening price differentials across the continent." Please provide documents and
sources supporting this statement.
REQUEST NO. 13: On page 62 of the IRP, the Company talks about industrial use of
altemate fuels. The Company state; o'More specifically, only industrial customers located along the
Idaho Falls Lateral (IFL) have the ability to use any of these non-traditional resources to offset firm
demand throughout a system." Please describe what non-traditional resources are currently
available, resources that may become available within the planning horizon, and the extent to which
each resource could offset demand.
FIRST PRODUCTION REQUEST
TO INTERMOUNTAIN GAS J ocToBER 26,2017
REQUEST NO. 14: On page 65 of the IRP, the Company discusses biogas and
construction of an anaerobic digester. Please provide details on when a digester could become
viable and how much gas it could produce.
REQUEST NO. 15: On page 72 of the IRP, the Company discusses the State Street
enhancement achieved through a pipeline retest. Please provide a detailed description of the project
phases including cost and time estimates for each phase of the project.
REQUEST NO. 16: On page 73 of the IRP, the Company discusses Canyon County
enhancements. Please provide cost and time estimates for the project.
REQUEST NO. 17: On page 73 the Company mentions that compression has been retired
on the Idaho Falls lateral. Please describe when compression was installed, what equipment was
used, cost of the equipment, and when equipment was retired.
REQUEST NO. 18: On page 77 of the IRP, the Company mentions participation in energy
conservation seminars. Please provide details for each conservation seminar the Company attended
over the last five years including seminar names, topics covered, and company attendees.
REQUEST NO. 19: On page 110 of the IRP, the Company describes the Rexburg Snake
River crossing. Please provide supporting detail including project cost and timing.
REQUEST NO. 20: Please describe in detail peak shaving benefits of the Nampa and
Rexburg LNG facilities including areas that can be served and maximum duration.
REQUEST NO. 2l: On page 7 of the IRP, the Company states that "a peak day delivery
deficit does not occur during this IRP period." Please explain why the Load Duration Curve chart
on page 8 does not identify a deficit in FY19 since total peak day sendout (872,410) exceeds
distribution transport capacity (860,000) by 12,410 therms.
FIRST PRODUCTION REQUEST
TO INTERMOLINTAIN GAS 4 ocToBER 26,2017
REQUEST NO.22: On page 56 of its application, the Company explains that "Nampa
LNG withdrawals go directly into the Company's distribution system." Please provide a map
showing the Nampa LNG facility and its interconnections with the Company' distribution system.
Identify the portions of the Company's distribution network that can be supplied directly from the
Nampa LNG facility.
REQUEST NO.23: On page 56 of its application, the Company explains that "liquid
storage will serve as a needle peak supply." Please explain why it is preferable to use liquef,red gas
from the Nampa LNG facility, rather than compressed gas from the Williams pipeline, to supply gas
during needle peak. Please discuss the benefits of using the LNG facility to supply gas during
needle peak for each of the Company's customer classes (RS, GS, LV, T3 and T4).
DATED at Boise, Idaho, this 7{ day of Octo ber 2017.
WJh (fu*-,-
Camille Christen
Deputy Attorney General
Technical Staff: Kevin Keyt (1-20)
Mike Monison (21-23)
i:umisc:prodreq/intglT.4cckkmm prod reql
FIRST PRODUCTION REQUEST
TO INTERMOLTNTAIN GAS 5 ocToBER 26,2017
CERTIFICATE OF SERVICE
I HEREBY CERTIFY THAT I HAVE THIS 26th DAY OF OCTOBER 2017,
SERVED THE FOREGOING FIRST PRODUCTION REQUEST OF THE
COMMISSION STAFF TO INTERMOUNTAIN GAS COMPANY, N CASE
NO. INT-G-11-04, BY MAILING A COPY THEREOF, POSTAGE PREPAID, TO THE
FOLLOWING:
MICHAEL P McGRATH
DIR - REGULATORY AFFAIRS
INTERMOUNTAIN GAS CO
PO BOX 7608
BOISE ID 83707
E-MAIL: [e-mail]
CERTIFICATE OF SERVICE