20200803Application.pdf

A INTERMOT'NTAIN"
GAs COMPANYA$ffi! n tu.,'trdp,E
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Lori A. Blattner
Director, Regulatory Affairs
Intermountain Gas Company
Enclosure
Mark Chiles
Preston Carter
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August 3, 2020
Ms. Jan Noriyuki
Commission Secrctary
Idaho Public Utilities Commission
P.O. Box 83720
Boise, ID 83720-0074
RE: Case No. INT-G-20-04
Dear Ms. Noriyuki:
Attached for consideration by this Commission is an electronic submission of Intermountain Gas
Company's Application for Authority to Implement a Commercial Energy Effioiency Program and
Funding Mechanism.
Ifyou should have any questions regarding the attached, please don't hesitate to contact me at (208)
377-6015.
Sincerely,
dakBbM
cc
INTERMOUNTAIN GAS COMPANY
CASE NO.INT-G-20-04
APPLICATION
ANI)
EXHIBITS
In the Matter of the Application of INTERMOT NTAIN GAS COMPAII-Y
for Authority to Implement a Commercial Energy Elliciency Program and
Funding Mechanism
Preston N. Carter, ISB No. 8462
Givens Pursley LLP
601 W. Bannock St.
Boise, Idaho 83702
Telephone: [phone]
Attorneys for Intermounlain Gos Company
In the Matter of the Application of
INTERMOLNTAIN GAS COMPANY
for Authority to Implement a Commercial
Energy Efliciency Program and Funding
Mechanism
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
Case No. INT-G-2044
APPLICATION
Intermountain Gas Company ("lntermountain" or "Company"), a subsidiary of MDU
Resources Group, Inc. with general offices located at 555 South Cole Road, Boise, Idaho, pursuant
to the Rules of Procedure of the Idaho Public Utilities Commission ("Commission"), requests
authority, pursuant to Idaho Code Sections 6l-307 and 61-622, to implement a Commercial Energy
Efficiency Program and Funding Mechanism as outlined in this Application'
Please address communications regarding this Application to:
Lori A. Blattner
Director - Regulatory Affairs
Intermountain Gas ComPanY
Post Office Box 7608
Boise, Idaho 83707
ori.E| lattner (]m
and
Preston N. Carter
Givens Pursley LLP
601 W. Bannock St.
Boise, Idaho 83702
nc Mns rsl conl
kendrahlzi qivens Durslev.cont
INTERMo(JNTAtr.I GAS COMPANY,S APPLICATION - 2
In support ofthis Application, Intermountain alleges and states as follows:
I. INTRODUCTION
lntermountain is a gas utility, subject to thejurisdiction ofthe Commission, engaged in the
sale ofand distribution of natural gas within the State ofldaho under authority of Commission
Certificate No. 219, issued December 2, 1955, as amended and supplemented by Order No. 6564,
dated October 3, 1962.
Intermountain provides natural gas service to the following Idaho communities and counties
and adjoining areas:
Ada County - Boise, Eagle, Garden Ciry, Kuna, Meridian, and Star;
Bannock County - Arimo, Chubbuck. Inkom, Lava Hot Springs, McCarnmon, and Pocatello;
Bear Lake County - Georgetolm, and Montpelier;
Bingham County - Aberdeen, Basalt, Blackfoot, Firth, Foft Hall, Moreland./Riverside, and Sheltey;
Blaine County - Bellevue. Hailey, Ketchum, and Sun Valleyl
Bonneville Counf - Ammon, Idaho Falls, Iona, and Ucon;
Canyon County - Caldwell, Greenleaf, Middleton, Nampa, Parma, and Wilder;
Caribou Coun! - Bancroft, Crace, and Soda Springs;
Cassia Counr,," - Burley, Declo, Malta, and Ra1l River:
Elmore County - Glenns Ferry, Hammett, and Mountain Home;
Fremont County - Parker, and St. Anthony;
Gem County - Emmett;
Gooding County - Bliss, Gooding, and Wendell;
Jefferson County - Lewisville, Menan, Rigby, and Ririe;
Jerome County - Jerome;
Lincoln County - Shoshone;
Madison County - Rexburg, and Sugar City:
Minidoka County - Heybum, Paul, and Rupert;
Owyhee County - Bruneau, Marsing, and Homedale;
Payette County - Fruitland, New Plymouth, and Payette;
Power County - American Fallsl
Twin Falls County - Buhl, Filer, Hansen, Kimberly, Murtaugh, and Twin Falls;
Washington County - Weiser.
Intermountain's prope(ies in these locations consist of transmission pipelines, liquefied
natural gas storage facilities, a compressor station, distribution mains. services. meters and
regulators, and general plant and equipment.
INTERMot[.irArN GAS CoMpANy's APPLICATIoN - 3
II. BACKGROUND
In Case No. INT-G-16-02, Intermountain proposed the establishment ofan Energy
Efficiency program. In testimony presented as parl ofthat case, the Company proposed a plan to
implement the program in a phased approach, "with its first priority being conservation
achievements in the residential sector. Following the successful launch of its residential
conservation program, the Company will develop efforts including a targeted rebate portfolio of
prescriptive conservation measures for its commercial se.ctor customers." Case No. INT-G- 16-0?
Direct Testimony of Allison Spector at 6 (filed Aug. 12,2016).
The Commission approved the first phase of Intermountain's Energy EfTiciency Program in
Case No. INT-C-I7-03, Order No. 33888, effective October 1,2017, with rebates available to
Intermountain's residential customers. The Energy Effrciency Program has experienced strong
uptake by residential customers since its inception. With the successful launch ofthe residential
portion ofthe program, Intermountain is now ready to take the next step and add a commercial
component to its Energy Efficiency Program.
In 2018, Dunsky Energy Consulting was retained to perfom a Conservation Potential
Assessment (CPA) for Intermountain. The CPA covers a timeframe of 2020-2039, with emphasis
on the initial 5-year period, and provides a comprehensive analysis ofviable conservation and
efficiency measures and total savings that could be achieved for both residential and commercial
customers. The completed CPA was included as Exhibit No. 4 in Case No. INT-G-19-07. See
Case No. INT-G-19-07, Application, Exh. 4 (filed Oct. 18, 2019).
The scenarios examined in the CPA regarding commercial customers exhibited strong
growth in the first 5 years. Average annual commercial program savings are broken down by the
end-uses of HVAC, commercial kitchen appliances, hot water savings, and other.
INTERMoTJNTAIN GAS COMPANY,S APPLICATION - 4
Based on the CPA, Dunsky drew the following conclusions regarding commercial
customers:
r HVAC measures provide 75% ofpotential savings;
r Commercial kitchen appliances are a typically untapped savings opportunity,
representing l4% ofthe first period savings potential; and
. Hot water savings potential can grow through the study period, notably as natural gas
engine heat pump water heaters become cost-effective.
The CPA noted that commercial energy savings could grow by 115% between the first and
second five-year periods, but the forecasted savings trajectory is contingent on the successful
introduction of those new initiatives.
In addition, the CPA reviewed the cost-effectiveness ofboth commercial retrofit and
commercial equipment programs. As discussed in more detail below, the CPA found that a
commercial equipment program is most cost-et-f'ective.
III. COMMERCIAL ENERGY EFNCIENCY PROGRAM
As noted. the CPA found that commercial retrofit cost-effectiveness is low under all
scenarios and the commercial equipment program can provide robust savings at a low unit cost.
Based on these findings, summarized in Figure I below, Intermountain developed an equipment-
based program for the initial program otl'ering.
INTERMoTNTAIN GAs CoMPANY,S APPLICATIoN - 5
-P
F
900
800
700
500
400
300
200
100
o I
( ommeK ial IqLripment ProSranr
I low I Base I Max
t0llnrlercial Retrofrt
Figure l: Comparison of('ommercial Program Savings: Low, Base and Mcu Scenarios (2020-
2024)
Intermountain convened its Energy Efficiency Stakeholder group on July 15, 2020 to
discuss the commercial offering the Company developed based on the CPA study. The
Stakeholder group provided helpful insight on the benefits ofcombining smaller measures into
an Energy Savings Kit. The kit would provide valuable progftrm promotion opportunities as the
Company ramps up the commercial side of the Energy Efficiency program. A meeting
participant also suggested that there may be strong potential for savings if commercial kitchens
were incented to install Energy Star certified natural gas griddles. This was a measure
Intermountain had not included in its original proposal.
The Company's commercial offering proposal focuses on therm savings measures in the
three end-use sectors identified in the CPA: HVAC, commercial kitchen appliances, and hot
water savings, In developing the commercial offering, Intermountain analyzed the suggestions
raised during the Stakeholder meeting. Both suggested measures were cost effective and have
been included in the Company's proposal.
INTERMOTJNTAIN GAS COMPANY'S APPLICANON . 6
The HVAC category includes rebates for three high-efficient appliances: boilers with
300,000 Btuh input size or greater, the installation ofboiler reset controls, and condensing unit
heaters.
The kitchen end-use category offers incentives for the installation ofhigh-efficient
natural gas commercial kitchen appliances including fryers, steamers and griddles. lntermountain
will leverage the research and certification conducted by the Environmental Protection Agency's
ENERGY STAR@ certified appliances program. AII kitchen appliances must be ENERGY
STARo certified to qualifo for the incentive.
As suggested by its Stakeholder group, Intermountain plans to offer complimentary
energy saving kits to commercial customers. The energy saving kits will focus on water savings
measures such as a pre-rinse spray valve, restroom faucet aerators, kitchen faucet aerators and a
water temperature gauge.
Exhibit No. I outlines the proposed commercial program offerings, along with therm
savings assumptions taken from Intermountain's CPA, and the resulting Utility Cost Test results.
Exhibit No. I is attached and incorporated by reference.
IV. COMMERCIAL ENERGY EFFICIENCY CHARGE
With this Application, the Company also seeks to formalize a mechanism to recover costs
incurred in the administration and delivery of its proposed Rate Schedule EE - GS. These may
include, but are not limited to: energy efficiency program rebates; delivery and administration to
include program ramp-up expenses and incremental staffing pertaining to Energy Efficiency;
Energy EIficiency outreach in print form and at trade show participation; local equipment dealer,
distributer, and builder support to encourage promotion oftarifT-approved Energy Efficiency
measures for customers; engagement in activities that encourage increased adoption of energy
INTERMoI]NTAIN GAS CoMPANY,S APPI,ICATIoN - 7
effrciency technologies in the market ("market transformation") through organizations such as the
Gas Technology Institute ("GTI"), if appropriate; and future energy savings potential assessment
and validation activities. All these activities are designed to benefit GS-l customers within the
Company's service territory.
For the first program year, the Company anticipates total costs of approximately $411,000.
As shown on ExhibitNo.2, Page l, this includes an estimate of$l70,000 for program administration,
and $241,000 in rebate payments. Estimated program administration costs and rebate payments in
future program years will be based on actual, ongoing program results.
To calculate the amount of program administration to include in the initial Energy Efficiency
Charge (EEC), Intermountain proposes to apply 20 percent of the total residential and commercial
program administration to the commercial program. At the end ofthe first program year, actual therm
savings will be used to allocate actual program administration between the residential and commercial
programs which will be used in the cost effectiveness calculations and EEC true-up for each customer
class.
The proposed commercial Energy Efficiency budget of$41 1,000 would equate to a per therm
charge of $0.00320 for the Company's GS-l class, as outlined in Exhibit No. 2, Page 2. The
implementation of this charge will result in an increase of $1.02 per month, or 0.67o, for the
Company's average GS-l customer. Exhibit No. 2 is attached and incorporated by reference.
V. COMMERCIAL ENERGY EFFICM,NCY TARIFFS
Exhibit No. 3, Pages l -2 shows Intermountain's proposed Rate Schedule EE - GS which
outlines the commercial offering. As indicated on the proposed Rate Schedule, the program would
be available to all Intermountain customers receiving service on the CS-l tariff. However,
customers using gas solely as Compressed Natural Gas Fuel in vehicular intemal combustion
INTERMoLTNTATN GAS CoMpANy's AppLIcAnoN - 8
engines would not be included in the Energy Efficiency program and thus be exempt from the
accompanying Energy Eltciency Charge.
Exhibit No. 3, Page 3 outlines the proposed Rate Schedule EEC - GS which describes the
mechanism the Company proposes to fund the commercial program. Exhibit No. 3 is attached
and incorporated by reference.
VI. REVISIONS TO EXISTINGTARIFFS
The Company's proposal to add a commercial component to its Energy Effrciency Program
necessitates changes in several of Intermountain's existing tariffs.
To avoid confusion, Intemlountain proposes renaming the Energy Efficiency tarifl's related
to residential customers. As illustrated in Exhibit No. 4, the Company proposes a change in the
name of Rate Schedules EE and EEC to Rate Schedules EE - RS and EEC - RS, respectively.
Additionally, the Company proposes to update references made to these Residential Energy
Efficiency tariffs to reflect the proposed name changes.
The Company proposes to update Rate Schedule GS-l to list the proposed commercial EEC.
Additionally, the Company proposes to update its TariffIndex to incorporate the aforementioned
additions and changes. Exhibit No. 4, which illustrates legislative changes to Intermountain's
existing tariffs as well as providing a clean copy ofthose same tariflb, is attached and incorporated
by reference.
VII. EFFECTIVEDATE
The Company proposes an effective date ofOctober l, 2020 for the Commercial Energy
Efliciency Program (EE - GS) and the Energy Efficiency Charge (EEC - GS), as outlined in this
Application, coincident with the effective date ofthe price change related to the Company's annual
Purchased Gas Cost Adjustment. lntemountain believes this timing will help to minimize customer
INTFRMoIn.ITAN GAs CoMPANY's APPI,ICATIoN - g
confusion that may result from multiple rate changes in a year.
VIII. PRESS RELEASE AND CUSTOMER NOTICE
This Application has been brought to tle attention of Intermountain's GS-l customers
through a Customer Notice and by a Press Release sent to daily and weekly newspapers, and major
radio and television stations in Intermountain's service area. The Press Release and Customer
Notice are attached and incorporated by reference.
XI. MODIFIED PROCEDURE
lntermountain requests that this matter be handled under modified procedure pursuant to
Rules 201-204 of the Commission's Rules of Procedure. Intermountain stands ready for immediate
consideration of this matter.
INTERMoTTNTAN GAS CoMpANy's AppLIcATIoN - 10
XIL REQT'ESTTORRELIEF
Intermountain respectfirlly petitions the Idaho Public Utilities Commission as follows:
a" Tbat the Commission authorize the Commercial Energy Efficiency Program as
presented in this Application,
b. That the Commission authorize the Company to implalent a Commercial Energ5i
Efficiency Charge as outlined in this Application,
c. That the effective date for both Rde Schedules EE - GS and EEC - GS be October l,
2020,
d- That this Application be heard and acted upon without hearing under modified
procedure, and
e. For such other relief as this Commission may determhe proper.
DATED: August3,2020.
INTERMOIJNTAIN GAS COMPANY GTVENS PIJRSLEY LLP
ABbrt*By
Lori A. Blattner
Director - Regulatory Affain
NTERMoUNTAIN GAs frMPANY's APPLICATIoN . I 1
By
Preston N. Carter
Attomey for Intermountain Gas Company
EXHIBTT NO. 1
CASE NO.INT.G.2O.O4
INTERMOUNTAIN GAS COMPAITIY
(I page)
Exhibit No- I
Case No. |NT.G.2G04
lntermountain Gas Company
Page 1 o, I
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EXHIBIT NO.2
CASE NO.INT-G-20-04
INTERMOUNTAIN GAS COMPAIYY
(2 pages)
Exhibil No. 2
Case No. INT-G-20-0,1
lntermounlain Gas Company
Page 1 ol2
Line
No.
INTERMOUNTAIN GAS GOMPANY
Proposed GS-1 Energy Efficiency Rebate Program
Annual Funding
Description Amount
(a)
1 Annual Budqet:
2 Rebate Payments
3 ProgramAdminishation
4 Annual EE Program Funding
(b)
$241,000
'170,000
$ 411,000
Exhibit No. 2
Case No. lNT4204,t
lntermounlain Gas Company
Page 2 of 2
Line
No,
INTERMOUNTAIN GAS COMPANY
Proposed GS-l Energy Efiiciency Charge
Description Amounl
(a)
1 Annual EE Program Funding (Ex. N0.2, pg. '1, Col. (b), Ln,4)
2 GS-1 Normalized Sales Volumes (1/1119 - 12131119)
3 Per fherm Energy Efflclency Charge
$
(b)
411,000
128,278,814
$ 0.00320
E}ilIIBIT NO.3
CASE NO.INT.G-20.04
INTERMOT]NTAIN GAS COMPANTY
(3 pages)
l.P.U.C. Gas Tariff
Rate Schedules
Oriqinal Sheet No. '18 (Paqe 1 of 2)
Name
ofUtility lntermountain Gas Company
Exhibit No- 3
Case No. INT.G-20-04
lntermountain Gas Company
Page 1 ot 3
Rate Schedule EE-GS
GENERAL SERVICE ENERGY EFFICIENCY REBATE PROGRAM
AVAILABILITY:
The lntermountain Gas Company Energy Efficiency Rebate Program (EE Program) is available
lhroughout lntermountain's service territory to eliglble account holders served under the Company's Rate
Schedule GS-1 .
PROGRAM DESCRIPTION:
The purpose of the program is to encourage upgrades to, or use ol high efficiency natural gas
equipment. This will be achieved through the use of rebates, offered towards the purchase and
installation of qualified energy-efficient natural gas equipment.
ELIGIBILITY:
To qualifo for incentivss, customers must meet th6 end-use qualifications identified in the
Measures/lncentive Table below.
To qualify for space heating rebates, the building must use natural gas as the sole heat source upon
installation of rebate-qualified equipment.
To qualify for water heating rebates, the building must ulilize natural gas for water heating upon
installation of rebale-qualifi ed equipment.
rssued by: lntermountain Gas Company
By: Lori A. Blattner Title: Director - Regulatory Affairs
Effective: October 1, 2020
l.P.U.C. Gas Tarifi
Rate Schedules
Oriainal Sheet No. 18 (Paoe 2 of 2)
Name
of Utility lntermountain Gas Company
Exhibit No, 3
Case No, lNT4-20-04
lntermountain Gas Company
Page 2 of 3
Rate Schedule EE-GS
GENERAL SERVICE ENERGY EFFICIENCY REBATE PROGRAM
(Continued)
MEASURES/INCENTIVES:
Measure Description Rebate Amount
Griddle ENERGY STAR@
Certified $200
Fryer ENERGY STAR@
Certified $800
Steamer ENERGY STARO
Certified $1 ,100
Boiler Reset Control Unit lnstalled $350
High-Efficiency
Condensing Boiler
Minimum 90% Thermal
Efficiency & 300 kBtuh
input
$4.50/kBtuh
Condensing Unit Heater 90o/o AFUE $1,500
Energy Saving Kit
Pre-Rinse Spray Valve,
Aerators, Water
TemDerature Gauoe
Complimentary
GENERAL PROVISIONS:
All installations of equipment must comply with all codes and permit requirements applicable in the state
of ldaho and must be properly inspected, if required, by appropriale agencies. Customers must submit
required documentation of purchase and installation to the Company under the terms and instructions of
the current rebate form. The Company reserves the right to verii/ installation prior to the payment of any
rebates.
tssued by: lntermountain Gas Company
By: Lori A. Blattner Title: Director - Regulatory Atfairs
Effective: Octobe I, 2020
l.P.U.C. Gas Tariff
Rate Schedules
Oriqinal She€t No. 19 (Page I of 1)
Name
of Utility lntermountain Gas Company
Exhibit No. 3
Case No. INT€-20-04
lntermountaln Gas Company
Page 3 of 3
Rate Schedule EEC-GS
GENERAL SERVICE ENERGY EFFICIENCY CHARGE
APPLICABILITY:
Applicable to customers taking service under Rale Schedule GS-1. The Energy Efficiency Charge is
designed to fund administrative and program delivery costs incurred by the Company for energy
efficiency services provided to customers as outlined in Rate Schedule EE-GS.
MONTHLY RATE:
The Monthly Rale is equalto the applicable Energy Efficiency Charge multiplied by the monthly billed
therms.
Schedule
Rate Schedule GS-1
Enerov Efficiencv Charoe
s0.00320
rssued by: lntermountain Gas GompanyBy: Lori A. Blattner Title: Oirector - Regulatory Affairs
Eftuctive: October 1, 2020
EXHIBITNO.4
cAsE NO.INT-G-20-04
INTERMOfINT{N GAS COMPAI{Y
(16 pages)
Exhibil No. 4
Case No. INT-G-20-0,i
lrfemourdain Gas Company
Page 1 of 16
PROPOSED TARIFF
(Legislative Format)
(7 pages)
Exhlbit No. 4
Case No- lNT420-04
lntemountain Gas Company
Page 2 of 16
|.P,U.C. C€s T.dfi
lnd6r
+t{CR.r,h.d Fourth Sh.ot No. C
Nrlla
o, uilty lntormountaln Gas Gompany
INDEX
RATE SCHEOULES
TNLE
RBidEnlial Sorvica
con6ral Servhe.........
l3E€ VolufiE Flrm Sal6s SaNia€.................
lnbm iH! Dirtibution Tr.nsportslion Soruico................
Flrm DirEibution Only Transpodation Soryic€.............
Purdlar6d Ga! Colt A4iuth€rt....-...-.-...--.--..........--..-
Franchb6 F€e/ T8x AdiusfrrEnt
IDAHO PUBLIC UTILITIES COMMISSIONApproved EfiectlveJrrio46ree+g #f+3e+S
Diane M, Hanian Socretary
EHEEIsslEsglE@
RS
G$1
t9.R
ts-c
LV-1
T-3
T.4
PGA
FT
EE -RS
EEC.RS
EE-GS
,l
3
Rarid8ntial lnEnupt ble Snorrmolt S€n ice..4
Srmll Commdcid lnbruptblB Snou,melt Scwios..........-.......-...............-...............,.5
...................7
8
....,,.,,,,,....9
13
15
't6REsidential Ensrgy Eficigncy Rebate Pro0ram...............-
EEC.GS
t.$rd byr Intermountaln Ga8 CompanyBy: lfi6h6affith Lori A. Blattner Tite; DirEcbr - Raguhtory AtrairsEfiactiw:-Jelrt4e4&- odober1.2020
Exhibit No.4
Case No. INT-G-20-04
lntennotlntain Gas Company
Page 3 ot 16
l.P.U.C. Gas Tariff
Rate Schedules
FiRhRevised Sixth Sheet No. 'l {Paoe 'l of '1}
Name
of txility tntermountain Gas Company
Rato Schedule RS
RESIDENTIAL SERVICE
APPLICABILITY:
ApplicaHe to any custorner using natural gas br lesirential purposes-
RATE:
Monhly minimum cfiaEe is th€ Customar ChaEe.
IDAHO PUBLIC UTILITIES COMMISSIONApproved E f€ctlve€€+{r-30,P e6r'Btg
Fer4lH++++8.34+A+
Diana M. Hanlan Socrctary
($0.05s73)
$0.20904
$0.r 8087
Customer Charge:
Por Therm Charge
*lndudes lh6 bllowing
Co€t ofGas:
$5.50 per bill
$0.51816'
'l) TempoGry purchased gas cost adjusfflent
2) t/Veighted aYerage co6t of gas
3) Gas transportation cost
Dishibution Cost
EE Charge:
$0.16305
$0.02093
PURCHASED GAS COST ADJUSTMENT:
This iarifi is suliec't to en adjustrnent for he cost of purchased gas as proviired ior in Rate Sch€duh PGA.
This adjustnent is incorporaEd into the calculation of the Cost of Gas stated on cuslomer bilh.
ENERGY EFFICIENCY CHARGE AD.'USTTIENT:
This tariff is subieci to an adjustment for costs Elated to he Company's Energy Effciency program as
provided for in RaE Schedule EEq Jh€ EneEy Efilciency Charge is sepal.aEly staGd on customer bills.-{
SERMCE CONDITIONS: -Rs
All natural gas service hereunder is subject to ihe General Service Provisions of the Companys Tariff, of
which lhis rate schedule is a pad.
rssu.d by: lnterTnountain Gas Gompany
By: LoriA. Blattner Tite: Direclor - Regulatory Affairs
Efiective: edcbeF4r{++e Oclober 1, 2020
LP.U.C. Gas Taritr
Rate Schedules
Fi*/-Nindq Revised Sixtie8l Sheet No. 3 (Pag€ 1 of 2)
Namc
ot t ri ty lntermountain Gas Company
20o therms per bill @
1,800 therms per bill @
8,000 thems per bill @'10,000 therms per bill@
Erfiibit No. 4
Case No. INT-G-2G04
lrnermoudaln Gas Company
Page 4 of 16
$0.51668
$0.49320
$0.47053
$0.40197
IDAHO PUBLIC UTILITIES COMMISSIONApproved Effectiveeot'-#{g We+sPcr€+l=i{,4a8+{1454
Diane M. Hanian Secretary
Rate Schcdule GS-l
GENERAL SERVICE
APPUCABILITY:
Applicable to customeE who6e requirements ror naturalgas do not exceed 2,000 therms per day, at any point
on the Company's distribution system. Requirements in excess of 2,000 therms per day may be served undar
this late schedule upon execulion ol a one-year writbn service contract
RATE:
Monthly minimum charge is he CuEtomer ChaEe
Customer Charge:
PerTherm Charge
$9,50 per ball
Block One:
Block Two:
Block Three
Block Four:
First
Next
Next
Over
$e.51i48'
$sr4s0es'
$e#733r
$€re877'.
*lncludes the following:
Co6t of Gas:
Distribution Cost:
1)Temporary purcha$ed gas cost adjusfnent
2) Weighted averag€ cosl of gas
3) Gas lransportation cosl
($0.0s711)
$0.20904
$0.17690
200 thems per bill @
'1,800 thems p€r bill @
8,000 thsms per bill @
10,000 th6ms per bill @
tssLied by: lntermountain Gas Company
Bv' Lori A- Blattner Tite' Director - Reoulatorv Affairs
Eifedive: €€teb€+-t +re|g Ocfober'1. 2020
Block One:
Block Two:
Block Thrs6:
Block Four:
First
NBxt
Next
O\/er
$0.18465
$0.16117
$0.13850
$0.06s94
Exhibit No. 4
Case No. INT€-20-04
lntermountain Gas Company
Page 5 of 16
LP.U.C. Gas Tariff
Rate Sch€dulesFi8- ii{h Revised Sidieth Sh€6t No- 3 (PeO€ 2 of 2)
lntermountain Gas Companyof LjtNity
IDAHO PUBLIC UTILTTIES COMMISSIONApprovsd ElfcctivceoF#e+9 e€Hrie1{
PeFeJH.l,/t4+*+r4A{
Diano M. Hrnian S6cr6tary
Rate Schedule GS-l
GENERAL SERVICE
(Continued)
For separately meiered deliveries of gas utilizod solely as Compressed Natural Gas Fuel in vshicular intGmal
combuslion engines.
Customer Charce: $9.50 per bill
Block One:
Block Two:
Per Therm Charge:
'lncludeE the following
Cost o, Gas:
First 10,000 rerms per bill@
Over '10,000 therms per bill @
1) Temporary purchased ga6 cost ad.lustnent
2) l /eighted average cost of gaE
3) Ga6 transportation co6t
Block One: First 10,000 lierms per bill @
Block Two: Over 10,000 therms p€r bill @
$0.46733.
$0.3987r
($0.05711)
$0.20904
$0,17690
$0.138s0
$0.06994
Distribution Cost:
PURCHASED GAS COST ADJUSTMENT:
This tariff is subject to an adjustrnent for cost of purchased gas as provided for in the Company's Purchased
Gas Cost Adjusfnent Schedule.
SERVICE CONDITIONS:
Al natural gas service hereunder is subject to the General Service Provisions ofthe Company's Tarfi
ol which this rate schedule is 8 part
BILLING ADJUSTMENTS:
Any GS-'l customerwho leaves the G91 seMce will pay to lntermountain Gas Company, upon exitiog
the GS-1 service, all gas and transportation related cosb incuned to serve the customel during the
GS-1 sBrvice period not psil by the customer during the lime the customer was using GS-1 seNice.
Any GS-1 cuslomer who lea\/es he GS-1 service will have refunded to them, upon exiting the GS-l
service, any excoss gas commodity or transportation payments made by the customer during the tlme
they were a GS-1 customer.
Enerov Effcienc1 Adiustment:
This tariff is subiecl to an adiustrnent for costs related to the ComDant's Enerqv Effcien6/ groqram as
provided for in Rate Schedule EEGGS. Tho Enerqv Effci€nc.,/ Charqe is not ao9licable to qas utilized solelv
as ComDrosssd Natural Gas Fuel in vehicr]lar intsmal combuslion enqin6. The Enertv Effciencv Charoe is
6eDarately stated on drstomer bills.
tssued by: lntermountain Gas Company
By. LoriA. Blattner Tite Diredor - Regulatory Affai6
Efiedive. ed€b€F4r+g+g Odober 1. 2020
Exhibit No.4
Case No. INT€-20{,1
lntermolntain Gas Company
Page 6 of 16
l.P.U-C. Ga6 Tarifr
Rat6 Sch€dul6sO.iqihel First Revised Sheet No. 16 {Paoe 1 of 2)
Nam€lntermountain Gas Company
IDAHO PUBLIC UTILITIES COMMISSIONApprovod EfrGctiveSepl=+H+r erHrre1i
FerejH3E?q339ee,&33888
Dians M. Hanian Secretary
Rat6 Schedule EE-RS
RESIDENTIAL ENERGY EFFICIENCY REBATE PROGRAM
AVAILABILITY:
The lntermountain Gas Company Energy Efficiency Rebate Program (EE Program) is available
throughout lnErmountain's service territory to eligible residential account holders served under the
Companys Rate Schedule RS.
PROGRAM DESCRIPTION:
The purpose of the program is to encourage upgrades to, or use of, high ofilciency naturalgas
equipment. This will be achiGved through th€ use of rebates, offered towa.ds the purchase and
installation ofquallfied energy-efficient natural gas equipment and construction of Energy Stsr certified
homes.
ELIGIBILITY:
To qualify ,or incentives, customers must meet the end-use qualifications identmed in the
Measures/lncentive Table below.
To qualify ior space heating rebates, a dwelling must use natural gas as the sole heat sourc,e upon
installation of rebate{ualified equipment.
To qualify tor water hGating rebat8s, a dwelling must utiliz€ natural gas for water heating upon installation
of r€bate-qualifled equipm€nt.
Rebates for furnaces and water heating equipment for new construclion Mtjgt be combin6d with the
Energy Star whole home package rebates.
rssu€d by: lntermountain Gas Company
By: Mi€ha€lP=+l€€.alh I dri A: BEttner Title: Director - Regulatory AffairsEffective:e*eb€#1+ A4o!Cf-1,2!2!
Exhibit No.4
Case No, lNTfr-2Go4
lntermountain Gas Company
Page 7 of l6
IP,U C GesT
Rale Sctredules
Eirsl Revised
IOAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveF€b-4raBe ,faroh.+{eee
Dlane M. Hanian Secretary
Sh€el No. 16 261
lntermountain Gas Com n
Rate Schedule EE-RS
RESIDENTIAL ENERGY EFFICIENCY REBATE PROGRAM
(Continued)
MEASURES/INCE TIVES:
Dascription Robate
Amount
Energy Star Verifiod Home with 51 200
Natural Gas and Water Heal
91 EF Condensing
Tank-less Water Healer
91 Energy Faclor or Greater $ 150
GENERAL PROVISIONS:
All installations o, equipment must compy wdh all codes and permd requirements applEabte tn lhe state
ol ldaho and must be properly inspected. if required by appropriate agencies Customers must submit
required documentation of purchase and installation to the Company under the terms and instrustions of
the current rebate form The Company reserves the right to verify inslallation prior to the payment of any
rebates
rssued by lntermountain Gas Company
By LonA Blatlner Trtle Drrector - Regulatory AffairsEffective-i!ffi20- October '1, 2020
lryhob Home
Packege (tor new
conltucdonl
Energy Sta. Certifled
Home
Stand Alon6
iloaaureS (fo. now E
oxladng Eonltrucdon)
Dascription En.rgy
Efficiancy
Robats
95% AFUE Natural Gas
Fwneca
950/6 or Grealer Themal Effrcaency
Ratinq
s350
High Efficiency
Combination Radianl
Heat System
90% oI Greater Efflciency
Condensing Tank-less Combo
System For Soac€ and Waler Heal
s1.000
$ 10070% FE Natural Gas
Fireplace lnsert
67 EF Natural Gas
Water Heater
70016 FE Rating or Gr€ater
€7 Energy Factor or Greater $50
Exhibit No. ,l
Case No. INT-G.2G04
lntermountain Gas Company
Page 8 of 16
l.P.U.C. Gas Tadfi
Rate Sdredules
First Revised Second Sheet No. 17 (Page I of 1)
llemo
ot tXitty lntermountain Gas Company
IDAHO PUBLrc UNLMES COMMISSIOT.IApproved Effectives#ts €6{'#19
Perel.l'3.l4t&8.344e+
Dian€ lrl. Hanlan Sscrotary
Rate Schedule EEG-RS
RESIDENTIAL ENERGY EFFICIENCY CHARGE
APPLICABILITY:
Applicabl€ to customers taking sarvic€ und6r Rat€ Scheduls RS. Th€ Ensrgy Efficiency Charge is
dssigned to tund administrativB and prog.am dglivery cosb incuned by th€ Company for energy
efficiency services provided to cuEtomer6 as outlined in Rate Schedule EE\r
iIoNTHLY RATE: \-RS-
The Monthly Rale is equal to the applicable Energy Efficiency Charge muhiplied by the monthly billed
therms.
Schedule
Rab Schedule RS
Enerov Effi cienc.Y Charge
$0.02093
rssued by: lntemountain Gas Company
E[". ":l$flffiL* october 1 , 2020 ritla: Dir€ctor - Resulatory Arrair.
Exhibit No. 4
Case No. INT-G-20-04
lntermountain GaB Company
Page I o, ,6
PROPOSED TARIFF
(Clean Format)
(7 pages)
l.P.U.C. Gas Tariff
lndex
Fourth Revised Sheet No. C
Name
of Utility Intermountain Gas Company
SCHEDULE
Exhlblt No.4
Case No. INT-G2o-M
lntermounlain Gas Company
Page l0 of 16
SHEET
NO.
RS
GS.1
IS.R
ts-c
LV-1
T-3
T-4
PGA
FT
EE.RS
EEC-RS
EE.GS
EEC-GS
Large Volume Firm Sales Service
INDEX
RATE SCHEDULES
TITLE
Residential Service
General Service....
Residential lnterruptible Snowmelt Service.......
Small Commercial lnterruptible Snowmelt Service
lnterruptible Distribution Transportalion Service
Firm Distribution Only Transportation Service ...
Purchased Gas Cost Adjustment .......................
Franchise Fee/ Tax Adjustment..........................
Residential Energy Efficiency Rebate Program.
Residential Energy Efiiciency Charge.....................
General Service Energy Efficiency Rebate Program
General Service Energy Efficiency Charge...............
1
.l
4
5
7
I
o
13
15
16
17
18
19
rssued by: lntermountain Gas GompanyBy: Lori A. Blattner Title: Director - Regulatory Affairs
Effective: October 1, 2020
l.P.U.C. Gas Tariff
Rate Schedules
Sixth Revised Sheet No. 1 (Page 1 of 1)
Name
of Utility lntermountain Gas Company
Rate Schedule RS
RESIDENTIAL SERVICE
APPLICABILITY:
Applicable to any customer using natural gas for residential purposes.
RATE:
Monthly minimum charge is the Customer Charge.
Exhibit No. 4
Case No. INT€-20-04
lntermountain Gas Company
Page 11 of 16
Customer Charge:
Per Therm Charge:
*lncludes the following:
cost of Gas:
$5,50 per bill
$0.51816',
1) Temporary purchased gas cost adjustment
2) Weighted average cost of gas
3) Gas transportation cost
($0.05s73)
$0.20904
$0.18087
Distribution Cost:
EE Charge:
$0.16305
$0.02093
PURCHASED GAS COST AOJUSTMENT:
This tariff is subject to an adiustment for the cost of purchased gas as provided for in Rate Schedule PGA
This adjustrnent is incorporated into the calculation of the Cost of Gas stated on customer bills.
ENERGY EFFICIENCY CHARGE ADJUSTMENT:
This tariff is subject to an adjustnent for costs related to the Company's Energy Efficiency program as
provided for in Rate Schedule EEC-RS. The Energy Efficiency Charge is separately stated on customer bills.
SERVICE CONDITIONS:
All natural gas service hereunder is subject to the General Service Provisions of the Company's Tariff, of
which this rate schedule is a part.
rssued by: lntermountain Gas Company
By: Lori A. Blattner Title: Direclor - Regulatory Affairs
EffectiYe: October 1, 2020
l.P.U.C. Gas Tariff
Rate Schedules
Sixtieth R€vised Sheet No. 3 (Page 1 of 2)
Name
of Utility lntermountain Gas Company
*lncludes the following:
Cost of Gas:
Distribution Cost:
'1) Temporary purchased gas cost adjustment
2) Weighted average cost of gas
3) Gas transportation cost
200 therms per bill @
1,800 therms per bill @
8,000 therms per bill @
10,000 therms per bill @
200 therms per bill @
1 ,800 therms per bill @
8,000 therms per bill @
10,000 therms per bill @
Exhibit No 4
Case No. INT-G-20-04
lntermountain Gas Company
Page 1? of 16
$0.51668-
$0.49320'
$0.47053"
$0.40197-
($0.0571 1)
$0.20904
$0.17690
$0.18465
$0.16117
$0.1 3850
$0.06994
Rate Schedule GS-1
GENERAL SERVICE
APPLICABILITY:
Applicable to customers whose requirements fcr natural gas do not exceed 2,000 therms per day, at any point
on the Company's distribution system. Requirements in excess of 2,000 therms per day may be served under
this rate schedule upon execution of a one-year written service contract.
RATE:
Monthly minimum charge is the Customer Charge.
Customer Charge:
Per Therm Charge:
$9.50 per bill
Block One:
Block Two:
Block Three:
Block Four:
First
Next
Next
Over
Block One:
Block Two:
Block Three:
Block Four:
First
Next
Next
Over
EE Charge:$0.00320
tssued by: lntermountain Gas Company
By: Lori A. Blattner Title: Director - Regulatory Affairs
Effective: October 1, 2020
LP.U.C. Gas Tariff
Rate Schedulss
Sixtieth Revised Sheet No.3 (Page 2 of 2)
Name
of Utjlity lntermountain Gas Company
Exhibil No. 4
CaEe No. INT-920-04
lnlermounlain GaE Company
Page 13 of '16
Rate Schedule GS-l
GENERAL SERVICE
(Continued)
For separately metered deliveries of gas utilized solely as Compressed Natural Gas Fuel in vehicular intemal
combustion engines.
Customer Charge: $9.50 per bill
Per Therm Charge:Block One
Block Two
*lncludes the following:
Cost of Gas:
Distribution Cost:
First 10,000 therms per bill @
Over 10,000 therms per bill @
1) Temporary purchased gas cost adjustrnent
2) Weighted average cost of gas
3) Gas transportation cost
Block One: First 10,000 therms per bill @
Block Two: Over 10,000 therms per bill @
$0.46733-
$0.39877-
($0.0571 1 )
s0.20904
$0.17690
$0.13850
$0.06994
PURCHASED GAS COST ADJUSTMENT:
This tariff is subject to an adiustment for cost of purchased gas as provided for in the Company's Purchased
Gas Cost Adjustment Schedule.
ENERGY EFFICIENCY CHARGE ADJUSTMENT:
This tariff is subject to an adjustment for costs related to the Company's Energy Efflciency program as
providod for in Rate Schedule EEC-GS. The Energy Efficiency Charge is not applicable to gas utilized solely
as Compressed Natural Gas Fuel in vehicular intemal combustion engines. The Energy Efilciency Charge is
separatBly stated on customer bills.
SERVICE CONDITIONS:
All natural gas seMce hereunder is subject to the General SeMce Provisions of the Company's Tariff,
of which this rate schedule is a part.
BILLING ADJUSTMENTS:
Any GS-1 customer who leaves the GS-1 seMce will pay to lntermountain Gas Company, upon exiting
the GS-1 service, all gas and transportation related costs incuned to serve the customer during the
GS-l seNice period not paid by the customer during the time the customer was using GS-1 sorvice.
Any GS-'1 customer who leaves the GS-1 service will have refunded to them, upon exiting the GS-1
service, any excess gas commodity or transportation payments made by the customer during the time
they were a GS-1 customer.
tssued by: lntermountain Gas Gompany
By: Lori A. Blattner Title: Director - Regulatory Affairs
Effective: October 1, 2020
1
l.P.U.C. Gas Tariff
Rate Schedules
First Revised Sheet No. 16 (Paoe 1 of 2)
Name
of Utilitv lntermountain Gas Gompany
Exhibit No. 4
Case No. |NT.G.2O".04
lntermountain Gas Company
Page 14 of 16
Rate Schedule EE-RS
RESIDENTIAL ENERGY EFFICIENCY REBATE PROGRAM
AVAILABILITY:
The lntermountain Gas Company Energy E{ficiency Rebate Program (EE Program) is available
throughout lntermountain's service territory to eligible residential account holders served under the
Company's Rate Schedule RS.
PROGRAM DESCRIPTION:
The purpose of the program is to encourage upgrades to, or use of, high efflciency natural gas
equipment. This will be achieved through the use of rebates, offered towards the purchase and
installation of qualilied energy-efflcient natural gas equipment and construction of Energy Star certified
homes-
ELIGIBILITY:
To qualify for incentives, customers must meet the end-use qualifications identifed in the
Measures/lncentive Table below.
To qualify for space heating rebates, a dwelling must use natural gas as the sole heat source upon
installation of rebate-qualified equipmenl.
To qualify lor water heating rebates, a dwelling must utilize natural gas for water heating upon installation
of rebate-qualifi ed equipment.
Rebates for furnaces and water heating equipment for new construction mav not be combined with the
Energy Star whole home package rebates.
tssued by: lntermountain Gas Company
By: Lori A. Blattner Title: Director - Regulatory Affairs
Effective: October 1, 2020
LP.U.C. Gas Tariff
Rate Schedules
Second Revised Sheel No. 16 (Paqe 2 of 2)
Name
of Utilitv lntermountain Gas Gompany
Exhibit No. 4
Case No. INT-G-20-04
lnlermountain Ga6 Company
Pag6 15 of 16
Rate Schedule EE-RS
RESIDENTIAL ENERGY EFFICIENCY REBATE PROGRAM
(Continued)
MEASURES/INCENTIVES:
GENERAL PROVISIONS:
All installations of equipment must comply with all codes and permit requirements applicable in the state
of ldaho and must be properly inspected, if required, by appropriate agencies. Customers must submit
required documentation of purchase and installation to the Company under the terms and instructions of
lhe current rebate form. The Company reserves the right to verify installation prior to the payment of any
rebates.
lssued by: lntermountain Gas Company
By: Lori A. Blattner Title: Director - Regulatory Affairs
Effective: October 1, 2020
Whole Home
Package (for new
construction)
Descriptlon Rebate
Amount
Energy Star Certifled
Home
Energy Star Verified Home with
Natural Gas Space and Water Heat
$r,200
Stand Alone
Measures (for new &
existing construction)
Description Energy
Efficiency
Rebate
95o/" AFUE Natural Gas
Fumace
95% or Greater Thermal Efflciency
Ratinq
$350
High Efiiciency
Combination Radiant
Heat System
90% or Greater Efficiency
Condensing Tank-less Combo
System For Space and Water Heat
$1,000
70% FE Natural Gas
Fireolace lnsert
70% FE Rating or Greater $100
.67 EF Natural Gas
Water Heater
.67 Energy Factor or Greater $so
.91 EF Condensing
Tankjess Water Heater
.91 Energy Factor or Greater $150
l.P.U.C. Gas Tariff
Rate Schedules
Semnd Revised Sheet No. 17 (Pase 1 of 1)
Name
of Ulility Intermountain Gas Company
Exhibit No. 4
Case No. INT-G-2&04
lntermountain Gas Company
Page 16 of 16
Rate Schedule EEC-RS
RESIDENT]AL ENERGY EFFICIENCY CHARGE
APPLICABILITY:
Applicable to customers taking service under Rate Schedule RS. The Energy Efficiency Charge is
designed to fund administrative and program delivery costs incuned by the Company for energy
efficiency services provided to customers as outlined in Rate Schedule EE-RS.
MONTHLY RATE:
The Monthly Rate is equal to the applicable Energy Efficiency Charge multiplied by the monthly billed
therms.
Schedule
Rate Schedule RS
Energv Efficiencv Charge
$0.02093
rssued by: lntermountain Gas GompanyBy: Lori A. Blattner Title: Director - Regulatory Affairs
Effective: October 1, 2020