Peoples Natural Gas Exhibit No. 2 - puc.pa.gov · 2,072 miles of gathering pipelines and 23 field...
Transcript of Peoples Natural Gas Exhibit No. 2 - puc.pa.gov · 2,072 miles of gathering pipelines and 23 field...
Peoples Natural Gas Exhibit No. 2
THE PEOPLES COMPANIES COMBINED UFG MITIGATION PLAN
TO ADDRESS GATHERING PIPELINES
TABLE OF CONTENTS
INTRODUCTION AND BACKGROUND................................................................................ 1
DEDICATED UFG TEAM.........................................................................................................7
ADDITIONAL SEGMENTATION TO ENHANCE IDENTIFICATION OF POTENTIAL UFG TARGETS..........................................................................................................................10
ACCELERATED LEAK REPAIR PROGRAM - BARE STEEL GATHERING........................ 11
GATHERING PIPELINE IMPROVEMENT STRATEGY - HIGHEST VALUEACTIVITY...................................................................................................................................13
REMOVAL / REPLACEMENT OF AT-RISK GATHERING PIPELINES................................ 18
FURTHER ANALYSIS TO BE PERFORMED WITH RESPECT TO CERTAIN GATHERING PIPELINES......................................................................................................... 20
GATHERING PIPELINE ABANDONMENT CONSIDERATIONS AND COMMUNICATION.............................................................................................................. 21
MAPPING ENHANCEMENTS........................................................... ,................................ 22
GAS MEASUREMENT ENHANCEMENTS...........................................................................22
UNAUTHORIZED USE............................................................................................................ 23
POTENTIAL IMPACT ON UNACCOUNTED FOR GAS 24
INTRODUCTION AND BACKGROUND
This document is a UFG Mitigation Plan for Peoples Natural Gas Company LLC ("Peoples
Natural") for both of its divisions, Peoples and Equitable, and its sister company Peoples Gas
Company LLC, formerly Peoples TWP LLC ("Peoples Gas"). It sets forth the planned action steps
for addressing and mitigating unaccounted-for-gas ("UFG") levels on the Peoples Natural Gas
and Peoples Gas systems. Hereinafter when referring to the Peoples and Equitable Divisions
and Peoples Gas inclusively, they will be referred to as the Peoples Companies or the
Companies. The Peoples Companies committed to provide this report in settlement of their
respective 2017 Purchased Gas Cost proceedings, to resolve certain issues raised in those cases.
Peoples Natural and Peoples Gas operate integrated natural gas systems that serve
approximately 690,000 customers in southwestern Pennsylvania. The systems have access to
numerous interstate natural gas pipelines including Equitrans L.P., Dominion Energy
Transmission Inc., Texas Eastern Transmission LP, Tennessee Gas Pipeline Company, LLC, and
National Fuel Gas Supply Corporation. The Companies' systems consist of distribution,
transmission, storage and gathering pipelines and related facilities. The total combined
systems are comprised of 15,071 miles of distribution and higher pressure transmission main
lines as well as five1 on-system storage facilities within their service territories. In addition,
what makes the Peoples Companies unique when compared to other PA natural gas
distribution systems is that they own and operate extensive gathering systems that provide
direct access to local natural gas supplies. The Peoples Companies' gathering systems comprise
1 There is one on-system storage pool on the Peoples Natural system and four on-system pools on the Peoples Gas system.
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2,072 miles of gathering pipelines and 23 field compressor stations used to move local gas
supplies to end use customers. Gas moved through the Companies' gathering facilities
accounts for about 43 Bcf, annually. The Peoples Companies' gathering systems have
historically provided a direct benefit to ratepayers through lower purchased gas commodity
costs and reductions in interstate pipeline transportation capacity costs. On the other hand,
storage facilities, gathering pipelines and compressor assets contribute to the Companies'
levels of gas used in company operations and UFG. As a result, the Peoples Companies' levels
of gas used in company operations and total system UFG are higher than those of typical
distribution-only systems.
For instance, the Companies run 23 natural gas powered compressors to lower line
pressures to allow local wells to produce into the gathering systems. These compressors
consume about 850,128 Mcf/year of natural gas. Additionally, the Companies also use
approximately 20,013 Mcf/year of natural gas at the five active storage facilities to run storage
relay compressors and various dehydration units that treat and inject gas into the storage
reservoirs during the summer injection periods. The Companies also experience gas losses in
the operation of the on-system storage pools. Some of the gas injected into the storage fields
during the April through October time frame, for eventual withdrawal during the winter months
of November through March, migrates out of the reservoirs and is lost into neighboring
formations. The Peoples Companies experience approximately 79,500 Mcf/year in storage
related losses. These types of losses also occur in interstate storage pools, and are recovered
through commodity charges of interstate pipelines.
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Even though the Companies operate the gathering, transmission, storage and
distribution pipelines as an integrated system, in recent years the Companies have installed gas
measurement equipment at various strategic system locations for the sole purpose of isolating
a gathering system or a portion thereof and separately determining the UFG on that isolated
gathering system. The table below shows the UFG levels for recent years broken down
between gathering and distribution systems.
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Peoples Natural Gas - both divisions
Report Year*
Total Syst Loss (MCF)
Dist Loss(MCF)
Gathering
loss (MCF) Syst% Dist % PUC Target Gathering %
2011 7,424,345 5.35%2012 5,684,379 4.64%2013 5,855,836 4.35%2014 5,594,715 2,128,971 3,465,744 3.85% 1.58% 5.00%2015 6,158,463 2,224,549 3,933,914 4.45% 1.66% 4.50%2016 6,063,405 3,499,116 2,564,290 5.01% 3.05% 4.00% 9.20%
2017 5,807,031 2,749,205 3,117,826 4.84% 2.42% 3.50% 10.16%
8,000,000
7,000,000
6,000,000
5,000,000
4,000,000
3,000,000
2,000,000
1,000,000
■ Total Syst Loss (MCF)
■ Dist Loss (MCF)
2011 2012 2013 2014 2015 2016 2017
*The report year is twelve months ended August beginning in 2014 as required by the
UFG Reporting proceedures ^Vid twelve months ended July for earlier periods.
Peoples Gas
Report Year*
Total Syst Loss
(MCF)
Dist Loss(MCF)
Gathering
loss (MCF) Syst % Dist % PUC Target Gathering 9
2011 730,130 2.73%2012 956,437 3.81%2013 540,420 2.25%2014 792,146 792,146 2.88% 2.88% 5.00%2015 984,598 984,598 3.36% 3.36% 4.50%2016 1,099,569 1,099,569 3.95% 3.95% 4.00%2017 1,707,933 590,664 1,136,769 6.80% 2.47% 3.50% 9.5
1,800,000
2011 2012 2013 2014 2015 2016 2017
*The report year is twelve months ended August beginning in 2014 as required by the
UFG Reporting proceedures and tyvelve months ended July for earlier periods.
Some noteworthy factors for consideration of this data include that 2014 and 2015 were
colder than normal years when considerable additional gas supplies flowed into the Companies'
systems. The opposite was true for 2016 and 2017 which were warmer than normal years with
corresponding lower throughput. The percentage loss rates were lower in 2014 and 2015 when
throughput was high than in 2016 and 2017 when throughput was low. Even where the total
volumetric loss decreased, as occurred from 2015 to 2016 on the Peoples Natural Gas system,
the percentage loss could, and in fact did, still show an increase. Another significant factor is
that until 2017, Peoples Gas had insufficient segmentation measurement to separate gathering
loss from distribution loss. As UFG was rising in the immediately preceding years, gathering
segmentation was a primary step undertaken to identify and quantify which areas of the
system were contributing to the loss.
Each Company has a similar profile with the distribution UFG falling within the range of
acceptable performance when compared to Commission-adopted standards and a higher loss
performance relating to the gathering systems. In addition, as indicated in the table above,
each of the gathering systems represents the most significant contributor to the Company's
system UFG levels. As a result of the significant amount of gathering facilities owned and
operated by the Companies, the different operating characteristics of gathering versus
distribution systems, the higher UFG percentages on the gathering systems, and the large
volumes that move through these systems annually, the major focus area of this mitigation plan
is on ways to reduce UFG on the gathering systems.
The Peoples Companies have for a number of years filed with the PUC and implemented
UFG mitigation plans addressing system wide UFG reduction measures. These plans correctly
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focused on various traditional potential contributors to UFG such as inaccurate measurement,
pipeline leaks or breaks, unauthorized use of gas, and accounting estimates/procedures. While
this UFG Mitigation Plan addresses and provides updates on some of these traditional UFG
mitigation measures, it now has a heightened focus on gathering pipelines across the
Companies whose removal or improvement provides the highest overall value to the
Companies and our customers in terms of cost (measured against various factors such as
customers served, throughput, and length of pipe installed), and prospective expense or
expense savings or avoidance .
COMPONENTS OF THE COMBINED UFG MITIGATION PLAN
DEDICATED UFG TEAM
Despite regular attention to UFG mitigation over the past years, the Companies'
experienced increased UFG in 2015 and into 2016, particularly on the Peoples Gas system. To
address this a special dedicated UFG mitigation team was formed early in 2016. The
responsibility of the UFG mitigation team is to analyze these recent UFG trends and identify
system factors contributing to UFG and to devise and implement an ongoing and coordinated
action plan to reduce UFG on the Peoples Companies' systems. In June of 2017 a newly created
senior UFG engineering position was filled. The primary responsibilities of the UFG engineer is
to manage, coordinate, investigate and design UFG reduction initiatives for the Peoples
Companies. The team, now led by the UFG engineer, meets weekly and consists of
representatives across various company business segments which include: Field Operations,
Customer Service Operations, Engineering, Pipeline Construction, Gas Supply, Gas Planning and
2 Risk reduction continues to be addressed in the Approved Combined LTIIP.
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Modeling, Gas Measurement and Regulation, Compressor Operations, Gas Control, Local Gas
Acquisition, Producer Services, Regulatory Affairs, and Customer Billing. The team reviews UFG
issues and mitigation measures across the Companies' systems, but given the recent UFG
increases on the Peoples Gas system, the team had an initial targeted focus on mitigating UFG
on the Peoples Gas system. Some, but not all, of the UFG mitigation areas examined by the
team included:
• Detailed review and validation of system UFG calculation models
• Measurement testing at major interconnection supply feeds into system;
• Gas measurement enhancements and validations;
• Numerous isolation studies conducted on various major segments of higher pressure
pipeline laterals;
• Verification of larger end-use customer measurement and gas usage changes;
• Hot Leak List - Identification, tracking and prioritization of leaks/repairs on leak prone
areas that are suspected larger contributors to UFG levels;
• Gathering pipeline system remediation opportunities including repairs, replacements
and abandonments;
• Mapping enhancements to show ongoing pressures and volume changes within the
pipeline systems to help identify potential UFG loss areas;
• Opportunities for segmentation measurement to enhance identification of potential
UFG problem areas;
• Review of the Companies' theft of service processes; and
• Special leak surveys including aerial leak surveys.
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A key initial finding from the UFG Mitigation team was that the gathering systems
located on the eastern section of the Peoples Gas system is the major contributors to elevated
UFG levels on Peoples Gas. The pipelines in this area are primarily used to gather and move
locally produced gas in a westerly direction to three major compressors which then in turn
move the production gas onto the main east-to-west pipeline laterals that feed the main
distribution systems and with the majority of customer usage located on the western section of
the Peoples Gas system. The team identified and implemented the following targeted
mitigation measures to reduce UFG levels on the Peoples Gas gathering systems:
• Knowing that the rate of gas leakage is correlated to the pipeline operating pressure,
steps were undertaken to reduce operation pressures on gathering systems by:
o Maintaining consistent coordinated operation of the three main PTWP gathering
compressor stations during non-winter periods;
o Strategically adjusting and reducing producer pressure set points at well
locations throughout the year; and
o Strategically managing interstate pipeline supply contracts in order to avoid
adding interstate gas supplies to the system during warmer weather periods
(while managing must-turn provisions of interstate storage contracts). This
strategy helps to maximize the flow of locally produced gas supplies and avoid
pressure increases on the gathering systems.
• Continue to target areas of highest UFG on the Peoples Gas gathering systems and
install additional measurement segmentation at strategic locations on the Peoples Gas
gathering systems in order to target areas of highest UFG, to more accurately capture
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actual levels of UFG, and to attribute that UFG to specific areas on gathering systems;
and
• Undertake a more aggressive leak survey and repair program on the systems that are
experiencing the highest levels of UFG.
The findings to date indicate that the Peoples Gas gathering systems have losses similar
to the gathering systems experienced on Peoples Natural Gas, and the Peoples Gas and Peoples
Natural Gas distribution systems have very similar loss rates that are within Commission-
established tolerances.
ADDITIONAL SEGMENTATION TO ENHANCE IDENTIFICATIONOF MITIGATION TARGET AREAS
Within gathering systems, natural gas is gathered directly from wellheads, transported
through pipeline transport systems, and delivered to customers via farm taps or to the city gate
into the distribution system. During this process, gas can be lost or not accounted for due to
system leaks, mis-identification of taps, inaccurate measurement (including that attributable
both to human or mechanical error and to natural causes, such as temperature and pressure
effects), or theft.
While each of these sources of UFG can be investigated and mitigated by physical
inspection and repair or correction, the complexity and size of the Companies' gathering
systems makes such site specific activity inefficient and expensive. In order to improve
efficiency - to get more bang for the buck - industry best practices require system
segmentation where each system or part of a system is segmented into a separate 'zone'. This
is accomplished by installing segmentation measurement. While a segmentation meter is a
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non-custody meter, for purposes of the UFG study, it will appear as a receipt meter into one
segment and a delivery meter into the adjoining segment. As non-custody meters,
segmentation meters do not need to meet AGA (American Gas Association) specifications, but
they still need to provide accurate measurement if they are to be relied on to quantify gas
flowing into and out of the segmented section, and as a result, their purchase and installation
are approximately as expensive as custody transfer meters. The Companies have a three-year
plan to install 3-4 additional segmentation meters each year. For 2018 the cost of the additional
segmentation meters is estimated to be $375,000. The meters will be installed in gathering
systems which appear to be experiencing higher UFG. Once segmented, the Company will be
able to assess the effect of mitigation measures and better direct the most effective mitigation
measures to the sources of the highest UFG.
ACCELERATED LEAK REPAIR PROGRAM - BARE STEEL GATHERING
The large majority of gathering pipelines owned and operated by Peoples Natural and
People Gas are located in Class 1 locations and therefore qualify as non-jurisdictional under the
DOT-PHMSA regulatory structure. As such, these gathering pipelines are exempt from most of
the pipeline safety requirements found in Title 49, Part 192, of the Code of Federal Regulations.
Nevertheless, the Peoples Companies historically operated and maintained these pipelines
according to the Companies' distribution pipeline operating procedures. As a result, these
pipelines have been subject to a triennial (once every 3 years) leak survey cycle. With a goal of
UFG mitigation, beginning in the 1st quarter of 2018, the Companies implemented an
Accelerated Leak Repair Program. Under this program the Companies will transition from a
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triennial to an annual leak survey cycle for DOT non-jurisdictional bare steel gathering pipelines
and prioritize the repairs of leaks found on those lines. While this program will address leaks on
the bare steel gathering pipelines located on the three legacy systems, the initial program (2018
and 2019) will have a primary emphasis on the Peoples Gas gathering systems that currently
are reporting increases in UFG levels.
This program has three designed action components:
1. Leak Surveys - Accelerate the leak survey cycle on the gathering systems, including the
clearing and mowing of rights-of-way, so that all active leaks can be more quickly
identified;
2. Leak Tracking and Prioritization - Identify, track, and prioritize areas of the gathering
systems and/or specific gathering pipeline segments that are prone to leakage and are
the largest contributors to UFG. The determinations made under this program
component will be based on accelerated leak survey results, information from the Hot
Leak List, experience and local shop knowledge, and UFG segmentation results; and
3. Leak Remediation - Use Leak Tracking information to perform accelerated leak repairs
on the highest priority gathering areas/segments. Other remediation steps may also
include the replacement of pipeline segments and pipeline abandonments (where
feasible).
In support of the Accelerated Leak Repair Program, the Companies have formed new
work crews who are dedicated to the Accelerated Leak Repair Program and are currently
working on gathering systems located in the Indiana, Valley, and Kiski divisions. These locations
were chosen as the initial mitigation areas because they were identified by local personnel as
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having a higher proportion of leak prone pipeline segments. These work crews will be solely
dedicated to finding and repairing leaks on an accelerated basis.
As the segmentation data identifies specific locations, the Companies also plan to hire
additional employees to increase the number of dedicated crews to address additional
gathering lines on the Peoples Gas and Peoples Natural systems. Following this 2018 ramp-up
and transition period, the Companies expect to achieve the goal of annual survey all bare steel
gathering pipelines in 2019. This will allow the Companies to find, track, prioritize and more
quickly repair gathering system leaks.
GATHERING PIPELINE IMPROVEMENT STRATEGY-HIGHEST VALUE ACTIVITY
As of December 2017, the Peoples Companies have 4,268 miles of at-risk pipeline, more
than other Pennsylvania natural gas distribution company ("NGDC"). At-risk pipeline miles by
Company/Division are as follows:
Miles of At-Risk PipelineDistributionTH Gatheringf2l Total
Peoples Division 1,817 403 2,220Equitable Division 749 559 1,308Peoples Gas 480 260 740TOTAL 3,046 1,222 4,268
[1] Includes distribution, transmission and storage pipe - as reported in the Combined Distribution LTIIP.
[2] Determined by primary function. For Peoples Gas only, the 260 miles of at risk Gathering pipelines are
currently included in Transmission for plant accounting purposes.
Unlike other Pennsylvania NGDCs, the Peoples Companies have a significant amount of
pipelines that primarily provide a gathering function. As a result, a significant percentage of the
Peoples Companies' at-risk pipelines, 29%, are gathering pipelines. Because the gathering
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pipelines generally have a lower density of customers and a lower risk ranking than distribution
system pipelines, the Peoples Companies are proposing different pipeline replacement plans
for distribution and gathering systems. The PUC-approved Combined Distribution LTIIP focuses
on the Peoples Companies' distribution and transmission systems. This UFG Plan focuses on
the Peoples Companies' gathering systems. The primary driver for separating the removal and
replacement of gathering from the removal and replacement of the remaining at-risk
distribution pipelines is that the gathering systems have the lowest risk and lowest density of
customers.
Why do the 'at-risk' gathering pipelines have generally lower risk scores? This is
primarily due to the lack of population around the pipe. Risk scores are determined by
multiplying risk of failure by the consequence of failure. Class Location, which is based on the
population around the pipeline, is evaluated in scoring the consequence of failure. To
demonstrate how significantly this impacts the risk scores we can look at the number of
customers served from these pipelines. As shown in the table below, as of December 2017
there are significantly more customers served by distribution at-risk pipe than served by
gathering at-risk pipe.
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Miles of Target MainsDistribution Gathering Total
Peoples Division 1,817 403 2,220Equitable Division 749 ; 559 1,308Peoples Gas 480 260 740
Total 3,046 1,222 4,268Percent of Total 71% 29%
Customers ImpactedDistribution Gathering Total
Peoples Division 131,328 ; 602 131,930Equitable Division 82,092 2,423 84,515Peoples Gas 9,094 199 9.293
Total 222,514 3,224 225,738Percent of Total 99% 1%
Customers oer MileDistribution Gathering
Peoples Division 72 1Equitable Division 110 4Peoples Gas 19 1
As the table shows, Distribution has 71 percent of the at-risk pipe and about 99 percent
of the customers served off of at risk pipe while Gathering has 29 percent of the at risk pipe and
only about one percent of the customers.
The lower customer per mile density on Gathering pipe (one customer per mile on
Peoples Division and Peoples Gas; four customers per mile on Equitable Division) reflects the
dual purpose of the Gathering systems. It would be economically inefficient for a NGDC to
install one mile of pipeline just to serve a single, average size, end use customer, or for that
matter, to serve four customers, so these lines were originally constructed to access new gas
supply. Attaching customers to these lines was generally incidental to obtaining supply. The
primary purpose of much of the Companies' gathering systems was to access shallow-well, low
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pressure, local gas supplies, which provided benefits to all of the Companies' customers and not
just those located along the gathering line.
Changes in the natural gas wholesale marketplace demand that the Peoples Companies
review and reconsider the use of and benefits from their gathering lines. Production of local
gas from deeper, high pressure, Marcellus Shale wells is booming while production from
traditional, low pressure, shallow wells is declining. Today, a single Marcellus Shale gas well can
produce the same amount of local gas as 100 or more traditional, low pressure shallow wells.
Because of its high volumes and high pressure, Marcellus gas cannot be received into the
Companies' distribution systems through the gathering systems that have traditionally received
and delivered shallow well local gas. As a result, the dual purpose that originally justified the
development of the Companies' gathering systems may no longer exist on some gathering lines
or, if it still exists, may not exist in sufficient scale or projected duration to justify a new capital
investment to replace the existing gathering line.
These considerations led the Companies to initiate an ongoing analysis of their
gathering systems to determine the current usage of gathering lines. The analysis segregates
the gathering lines into three groups on the basis of quantity of local production delivered into
the line and number of end use customers served directly off of the line. The miles of pipeline
falling into each group are shown in the following table. The green group represents gathering
lines that have both low production and no customers. The red group represents gathering
lines that are critical to transport gas to distribution areas that rely on local production to serve
customers. The yellow group represents everything in between. The category of gathering line
will help inform the type of infrastructure improvement or other action to be taken by the
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Companies. A green designation identifies a pipeline as a likely candidate for elimination
because there are no customers served along the line and there is little or no benefit from
continued receipt of production into the line. On the other hand, a red designation identifies a
pipeline as a likely candidate for replacement because there are numerous customers served
along the line and/or continued receipt of production into the line benefits the Companies and
their customers. A yellow designation identifies a pipeline as possessing mixed characteristics
that will require a further detailed analysis. The analysis will consider that the cost of replacing
at-risk pipe in the yellow category is in excess of $738 million.
The Companies used this initial analysis to guide the proposals in this UFG Plan and
concluded that the highest value improvement plan would focus in the initial years on
eliminating at-risk green pipelines from the system. The following table provides a breakdown
of the Peoples Companies' at-risk gathering pipeline into the three groups.
Gathering Miles of PipePNG PNG-ED PG TOTAL
Total Miles 752 788 533 2,073
At-Risk Miles 403 559 260 1,221Green - Eliminated/Abandoned 64 34 15 114
Red - Repaired/Replaced 58 87 39 184Yellow - Further Analysis Needed 281 437 205 923
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REMOVAL /REPLACEMENT OF AT-RISK GATHERING PIPELINES
Pursuant to this UFG Plan, the Peoples Companies will increase gathering line
investment over currently approved LTIIP gathering spending plans commencing in 2018. For
the 4-year period covered in this UFG Plan, the Peoples Companies will remove 115.2 miles of
at-risk pipeline, which will save over $90 million that would be spent if these lines were to be
replaced, and replace 20.0 miles by focusing on the red and green portions of the gathering
system. The table below shows the miles affected by year.
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COMBINED PEOPLES' UFG MITIGATION PLANActivity and Cost Data Related to the Removal and Replacement of Gathering Lines
January 1, 2018 through December 31, 2021
Gathering Lines - Miles Abandoned 2018 2019 2020 2021 TotalPeoples 2.8 6.2 16.0 38.4 63.4Peoples-Equitable 8.2 7.3 12.0 8.9 36.4Peoples Gas (TWP) 0.0 0.1 9.2 6.1 15.4
Total 11.0 13.6 37.2 53.4 115.2
Gathering Lines - Miles Reoaired/RenlacedPeoples 1.0 2.4 2.1 3.4 8.8Peoples-Equitable 0.0 0.0 1.6 0.8 2.5Peoples Gas (TWP) 0.2 0.5 4.0 4.0 8.7
Total 1.2 2.9 7.7 8.2 20.0
Gathering Lines (Abandoned)- SmillionsPeoples $ 0.16 $ 0.41 $ 0.74 S 0.69 $ 2.00Peoples-Equitable $ 0.34 $ 0.62 $ 0.39 $ 0.16 $ 1.51Peoples Gas (TWP) $ - $ 0.01 $ 0.12 $ 0.13 $ 0.26
Total $ 0.50 $ 1.04 $ 1.25 $ 0.98 $ 3.77
Gathering Lines (Reoaired/Reolaced) - SmillionsPeoples S 0.80 $ 2.00 $ 1.65 S 2.69 S 7.14Peoples-Equitable $ - $ - $ 1.35 S 0.66 S 2.01Peoples Gas (TWP) $ 0.20 $ 0.40 $ 3.20 S 3.20 $ 7.00
Total $ 1.00 $ 2.40 $ 6.20 $ 6.55 $ 16.15
Gathering Lines - TOTAL - SmillionsPeoples S 0.96 $ 2.41 S 2.39 $ 3.38 $ 9.14Peoples-Equitable $ 0.34 $ 0.62 $ 1.74 $ 0.82 $ 3.52Peoples Gas (TWP) $ 0.20 $ 0.41 $ 3.32 $ 3.33 S 7.26
Total $ 1.50 $ 3.44 $ 7.45 $ 7.53 S 19.92
Vehicles Tools EauiomentPeoples $ - $ 0.31 $ 0.44 $ - $ 0.75Peoples-Equitable $ - $ 0.14 $ 0.20 $ $ 0.34Peoples Gas (TWP) $ - $ 0.04 $ 0.06 $ - $ 0.10
Total $ $ 0.49 S 0.70 $ - $ 1.19
Total Gathering LTIIP - SmillionsPeoples S 0.96 $ 2.72 $ 2.83 S 3.38 $ 9.89Peoples-Equitable $ 0.34 $ 0.76 $ 1.94 $ 0.82 $ 3.86Peoples Gas (TWP) S 0.20 $ 0.45 $ 3.38 $ 3.33 S 7.36
Total $ 1.50 $ 3.93 $ 8.15 $ 7.53 S 21.11
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To achieve the results above requires an increase of $21.1 million in planned gathering
pipeline investment (inclusive of $1.2 million for additional vehicles, tools and equipment) for
the Peoples Companies in addition to the approved Combined Distribution LTIIP spending plans
of $919.4 million. The graph below shows the overall capital spend for this UFG Plan and
includes additional component described below:
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
UFG Mitigation Plan Capital Expenditures(SMillions)
■ Gathering Line Removal/Replacement
■ GMAS IT changes
■ Segmentation
■ TOS Progarm
□ Leak Repairs
■ Fleet/Tools
12 3 4
FURTHER ANALYSIS TO BE PERFORMED WITH RESPECTTO CERTAIN GATHERING PIPELINES
The Peoples Companies are also proposing to further analyze the "yellow" category of
gathering pipelines during the implementation of the initial removal/replacement activity.
These assets currently operate as independent gathering systems, a legacy of their former
ownership by separate NGDCs, even though many of the pipelines are within close proximity of
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one another. The analysis will focus on leveraging synergy opportunities between overlapping
pipelines, thus avoiding duplicative replacements of redundant, at-risk pipelines. In addition to
reducing total capital investment for pipeline replacement, this also presents opportunities to
optimize the overall operation of gathering facilities and thereby to reduce the impact on local
production and system supply while improving system reliability and lowering UFG and
operating costs. The Peoples Companies propose to provide an analysis and recommendations
for these pipeline segments in their 2020 1307(f) cases.
GATHERING PIPELINE ABANDONMENT CONSIDERATIONSAND COMMUNICATION
The first one and one half years of this plan will focus on eliminating/abandoning
targeted gathering pipelines that have no current production. Elimination of these lines will
avoid the cost of leak surveys and eliminate the possibility of flow from active production lines
into these lines and if check valves at the old wells are not working properly, the flow of gas
back into the old wells. Under this initiative neither the Companies' gas supply nor any local
producer will be impacted. During this period, the Peoples Companies will meet with producers
to inform them of the expected timing of the elimination of the remaining green low
production pipelines and potential impacts to their future production. The Peoples Companies
intend to collaborate with affected producers to explore potential solutions in an effort to
mitigate those impacts. Possible solutions may include the synergistic consolidation of producer
lines and meters for delivery at new points in the Peoples Companies' systems or transfer of
lines to inclined producers. Where Commission approval of such a transfer is required, the
Companies would file for and obtain such approval separate and apart from any approvals
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received of this UFG Plan. During this initial one and one half year period, the Companies will
also identify appropriate timing for elimination of each remaining green segment.
MAPPING ENHANCEMENTS
As an additional UFG identification tool, the Companies are developing an interactive
mapping system that merges real-time data obtained from the Companies' SCADA network
with system maps that reflect static pipeline pressure and volume information. The new maps
will lay real-time gathering pipeline pressure and volumes over historical, average pressures
and volumes on specific lines. A visual drop in pressure or a change in pressure or volumes
would indicate a potential issue to be investigated. The new mapping will allow the Companies
to respond quicker to any indicated issues and more efficiently utilize field resources.
GAS MEASUREMENT ENHANCEMENTS
The Companies will enhance the data management and control system to incorporate
new segmentation meters and utilize validation tools to produce more accurate measurement
data. A graphical interface will be utilized to help detect suspicious data or flow anomalies.
The system will trigger alarms, events and validation flags in a user-friendly manner.
Additional demarcation measurement points were installed within the last several years
which include new meters and flow computers. The flow computers, along with the meters,
require calibration to perform at optimum accuracy, a necessity to ensure line loss is accurate.
The combination of the above monitoring and reporting tools as well as additional
meter accuracy checks described above will provide a quicker view of changes that could
impact loss.
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UNAUTHORIZED USE OF GAS
The Companies currently have in place processes and procedures such as usage variance
reports to detect potential unauthorized use of gas situations such as theft of service ("TOS").
Field customer service personnel are also trained and tasked with identifying potential TOS
situations as part of their daily work routines. Should such a situation be identified, service
orders are created and issued for further investigation. If a TOS situation is verified, gas is
immediately shutoff to the premise, and the customer is billed for unauthorized usage and
prosecutorial actions may be taken.
The Companies are undertaking a review of existing TOS procedures designed to expand
and enhance their effectiveness. As part of this review, an internal TOS team was formed in
late 2017. The TOS team, which consists of cross functional company representatives, has been
charged with establishing a more formalized, consistent and expanded TOS program across all
operating divisions. Some possible program modifications and enhancements that have been
identified include:
• Implement processes to ensure that all forms of unauthorized use of service are
addressed. They include unauthorized turn-ons by customers, meter tampering,
unmetered by-pass service, and fraud and material misrepresentation by
customers;
• Establish a dedicated TOS staff responsible for theft detection and investigation
as well as enhanced and focused training of field service personnel;
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Improve customer information system capabilities to identify customer
consumption trends, flag possible aberrant usage situations, and automatically
report results indicating potential TOS.
• Enhance field observation techniques; set up a customer toll-free Gas Theft Tip
Line; implement public education and hot line advertisements; and
• Improve back office functions in support of work order management including
generation and assignment of TOS investigation work orders, corrective actions,
billing and reporting.
This program review is ongoing and is expected to result in more effective TOS back office and
field processes and procedures during 2018.
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