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					d0f8e6e5-89e5-4e43-9d8f-a87d5d1a9471.xls                                                                                                              8/11/2011 12:35 PM




3.3 HISTORIC CAPEX - NETWORK - by project                          3.3 HISTORIC CAPEX - NETWORK - by project

                                                     Link to
                                                    Historic

                                                                                                  DIFFRENCE
                                                                                                  BETWEEN
                                                                     ORIGINAL       REVISED        ORIGINAL                 Reason for Variation
                                                                   BUSINESS CASE   BUSINESS     BUSINESS CASE
Project Group         Project Description         Grand Total      COST ESTIMATE     CASE         & ACTUAL
                AC / DC Auxiliary Supplies                                                                    Inaccurate estimate due to the complexity of the
AC1                                                   $3,053,622      $2,964,187   $3,364,664         $89,435
                Replacement & Upgrades                                                                                    works at numerous sites.
                Asset Management Support                                                                       The majority of costs were non-system hence
AM2                                                    $779,085       $1,674,058   $1,786,771       -$894,973
                Systems – Minor Projects                                                                         are included in the 'Non-system' template.
                                                                                                                The major costs were non-system hence are
AM3             Defect Management System                   $975         $560,140    $678,940        -$559,165
                                                                                                                   included in the 'Non-system' template.
                                                                                                                The major costs were non-system hence are
AM4             Ratings database (RADAR)                $12,982         $674,209    $734,505        -$661,227
                                                                                                                   included in the 'Non-system' template.
                Substation RFI Monitoring
AM5                                                        -$758        $102,481                    -$103,239                A 'Non-system' cost.
                System
CAB1            BTS-RTS Cables                         $257,325         $280,648                     -$23,323
                Redevelopment of RTS 22kV
CB2                                                   $6,019,347      $6,064,000                     -$44,653
                Yard
                                                                                                                    (X359 additional civil and design work,
                Combination Of A Number Of                                                                        manufactures installation, additional(POW),
CB3             Projects For Replacement              $5,832,645      $6,598,910                    -$766,266      underestimation of design) (X424 & X428
                Circuit Breakers                                                                                 additional CVT)(X4C4 higher than anticipated
                                                                                                                              cost for new CB's)
                Replacement of four 66kV
CB4             Capacitor Bank Circuit Breakers        $259,441         $249,761                       $9,680
                at BATS
                Replacement of HYTS Lines
CB5                                                    $187,483         $182,488                       $4,995
                Auto Reclose at MLTS
                Replacement of a 500 kV
                                                                                                               A large part of the CB has been transferred to
                Siemens Circuit Breaker with an
CB8                                                     $91,543         $633,000                    -$541,457 Inventory reducing the costs against this project
                Alstom Circuit Breaker at Loy
                                                                                                                                    code.
                Yang Power Station
                                                                                                                X3F1- modifications to CB foundation due to CB
                Replace 66kV CBs and CTs at
CB9                                                    $627,527         $608,061    $758,661          $19,466     operating dynamic load, design revisions &
                KTS and SHTS
                                                                                                                          provisions had increased.




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d0f8e6e5-89e5-4e43-9d8f-a87d5d1a9471.xls                                                                                                               8/11/2011 12:35 PM




                                                                                                  DIFFRENCE
                                                                                                  BETWEEN
                                                                     ORIGINAL       REVISED        ORIGINAL                 Reason for Variation
                                                                   BUSINESS CASE   BUSINESS     BUSINESS CASE
Project Group        Project Description          Grand Total      COST ESTIMATE     CASE         & ACTUAL
                                                                                                                 X203- to add an additional radio station at a
                Provision of SCADA to remote
CL1                                                    $381,367         $355,900    $385,000          $25,467      remote radio site which was required to
                Radio Stations
                                                                                                                             complete the loop.
CM2             Condition Monitoring                   $594,593         $609,000                     -$14,407
                Plant condiiton monitoring
CM3                                                    $432,766         $483,579                     -$50,813
                equipment and facilities
                Installation of Disturbance
CM4                                                   $1,991,915      $2,074,225                     -$82,310
                Recorders at Various Stations
                Analogue Voice Frequency                                                                      A number of projects are coming in at less than
COMMS1                                                $2,332,664      $2,448,982   $2,499,321       -$116,318
                Signalling (VFS) systems                                                                                           estimated.
                                                                                                                 This fairly difficult field works to estimate
                Power Line Carrier equipment
COMMS2                                                 $985,068         $892,727                      $92,341 because the stations are live requiring outages
                (Protection & Speech)
                                                                                                                  to get access to the PLC equipment.
                Decongestion of the
COMMS3          Communications Digital                $2,236,384      $2,286,800                     -$50,416
                Network
                Replacement of BTS - RTS
COMMS4                                                 $474,546         $550,000                     -$75,454
                Optical Link & Exten of WAN.
COMMS5          Comms in Freshwater Place.             $326,601         $360,000                     -$33,399
                Provision for bypassing the
CON1            switchgear in Bays A,B,C,F at         $1,913,561      $2,023,013                    -$109,452
                SMTS
                Provide Dead Tank CB to cover
                failure of 220 KV, 3150A 50 KA,
CON2                                                   $171,974         $233,260                     -$61,286
                Dead Tank CBs or 220 KV
                4000A, 40 KA, Dead Tank CBs
                Emergency Response System                                                                       X2B1-Industrial Relations Issues and Items still
CON3                                                   $969,400         $769,764                     $199,636
                For Transmissoin Lines.                                                                               to be returned /replaced in store.
                Provision of current
                                                                                                                  Scope was changed to reflect the effect of
                transformers to replace
CT1                                                   $7,451,970      $6,262,137   $8,270,010      $1,189,833     failures - working requirements changed to
                deteriorating instrument
                                                                                                                            address the safety issues.
                transformers.
                Modern Products 66kV Current
CT2             Transformers – Operational             $405,023         $611,500                    -$206,477                  Scope reduction.
                Repalcments




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                                                                                               DIFFRENCE
                                                                                               BETWEEN
                                                                  ORIGINAL       REVISED        ORIGINAL                Reason for Variation
                                                                BUSINESS CASE   BUSINESS     BUSINESS CASE
Project Group         Project Description      Grand Total      COST ESTIMATE     CASE         & ACTUAL
                500kV Current transformers for
CT3                                                $2,034,721      $1,929,895                     $104,826            Within estimate accuracy.
                replacements
                Environmental Management -
                Improved Bunds & Drains –
                                                                                                             State EPA policy revision required significant
E1              Stage 3 at KGTS,HOTS,              $5,842,326      $2,742,000   $6,154,000      $3,100,326
                                                                                                                design changes plus increased scope.
                RWTS, GNTS, TGTS, MTS,
                GTS & HWPS
                Property Management -
E11                                                   $81,749         $84,117                      -$2,368
                Improved Drains at SMTS
                Environmental Management -
                                                                                                               X3A4-State EPA policy revision required
                Improve Bunds & Drains at
E14                                                $1,339,142        $996,157   $1,400,847        $342,985    significant design changes plus increased
                Yarraville & Replace Diesel
                                                                                                                                scope.
                Tanks at RTS
                 Environmental Management -
E15             Improved Bunding at HWTS &            $98,377         $98,235                        $142
                JLTS
                Environmental Management -
E16                                                 $286,022         $340,000                     -$53,978
                Wetlands at TSTS
                                                                                                             The cost of removing asbestos is very hard to
E17             KTS-Replace asbestos panels          $49,250          $31,500                      $17,750
                                                                                                              estimate because of its hazardous nature.
                Install a new bunded above
E18                                                 $125,773         $148,500                     -$22,727
                ground diesel fuel storage tank.
                Environment Management -
                Improved Bunding & Drains at
E27             DDTS, TTS, ROTS, SMTS,              $971,272         $985,563                     -$14,291
                TSTS, HWTS, WMTS, ATS,
                FBTS, & YPS
                Replacement of water mains at
E28                                                  $41,496          $45,264                      -$3,768
                YPS
                Malvern Area Centre - Provide
E29             bunded area for storage of oil        $3,809           $5,500                      -$1,691
                drums
                RTS - Provide bunded area for
E30                                                   $8,257          $10,500                      -$2,243
                storage of oil tankers




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                                                                                                 DIFFRENCE
                                                                                                 BETWEEN
                                                                    ORIGINAL       REVISED        ORIGINAL                  Reason for Variation
                                                                  BUSINESS CASE   BUSINESS     BUSINESS CASE
Project Group        Project Description         Grand Total      COST ESTIMATE     CASE         & ACTUAL

                Development Of Plant And
E31                                                      $7,747        $249,995                    -$242,248                  Non -system costs
                Equipment Technical Standards
                RCTS, RTS, BLTS and FBTS
E32                                                   $718,586         $775,700                     -$57,114
                Bunding and Drainage
                                                                                                               This was one of the first environmental projects,
E6                                                   $1,864,518      $1,661,700   $1,840,200        $202,818    hence some of the compliance requirements
                                                                                                                   were unknown during the design stage.

                Environment Management -                                                                     Similar to the above project group, this was one
                Improved Bunding & Drains at                                                                 of the first environmental projects, hence some
E7              SMTS, TTS, WMTS (Western             $1,650,043      $1,506,200                     $143,843 of the compliance requirements were unknown
                Stations)                                                                                        during the design stage. The EPA policy
                                                                                                             revision (DEC 02) required significant changes.
                Environment Management -
E8              Improved Bunds & Drains at           $4,547,417      $4,549,660                      -$2,243
                BLTS, FBTS, RTS & RCTS
                                                                                                              (X127 - Due to increases in design, materials,
                                                                                                               installation, scope & construction costs. This
                EHV Protection Replacement &                                                                 was the first major project of this type.) (X3E5 - it
EP1                                                  $6,063,543      $5,203,207   $6,639,103        $860,336
                Control Upgrades                                                                              was discovered that the bus tie dissconnection
                                                                                                               controls needed to be replaced as part of the
                                                                                                               retirement of the obsolete Megadata RTUs).

                Develop Standard Protection
EP2             Designs for P143 and Duplicate           $2,541         $51,000                     -$48,459
                Current Diff schemes.
EQP1            Tower Signage                        $3,691,162      $4,110,000                    -$418,838      Reduced costs - within estimate accuracy.
                Transmission Towers – Safe
EQP2                                                 $5,701,193      $6,028,851                    -$327,658      Reduced costs - within estimate accuracy.
                Climbing Access
                Tower Modifications - Ladders                                                                  # There is an error in the actual, it should have
EQP3                                                 $7,306,431      $7,471,180                    -$164,749
                for safe access                                                                                               been $7,306,431
                Transmission Towers – Safe
EQP4                                                   $40,409          $45,400                      -$4,991
                Climbing Access




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d0f8e6e5-89e5-4e43-9d8f-a87d5d1a9471.xls                                                                                                              8/11/2011 12:35 PM




                                                                                               DIFFRENCE
                                                                                               BETWEEN
                                                                  ORIGINAL       REVISED        ORIGINAL                  Reason for Variation
                                                                BUSINESS CASE   BUSINESS     BUSINESS CASE
Project Group        Project Description       Grand Total      COST ESTIMATE     CASE         & ACTUAL
                HV Protection Replacement &                                                                   (X2B4 due to design, secondary equipment &
HP1                                                $6,315,926      $5,696,383   $5,846,323        $619,543
                Control Upgrades                                                                              installation work being higher than estimated.
                Replace the BAS 1 Feeder
                                                                                                              * Error in the business case value, it should be
HP2             Protection & Control Equipment      $151,733         $153,950                      -$2,217
                                                                                                                                  $153,950
                at BATS
                Replacement of Feeder
                Protection and Control                                                                            *There was an error in the accounting
HP3                                                 $127,800         $145,816                     -$18,016    treatment of HP3 the figure should have been
                Schemes at Brooklyn, and
                Terang Terminal Stations.                                                                                       $127.8K

                Replacement of 22kV
                Overcurrent and Pilot Wire                                                                   The reduction was achieved using CITIPOWER
HP4                                                 $277,400         $373,400                     -$96,000
                Protection Relays at Richmond                                                                     contractors who were already on site.
                Terminal Station (RTS)
                Replacement of Station Control
HP5             Equipment & Protection              $987,893         $996,427                      -$8,534
                Schemes at RWTS
                FBTS - 66kV Bus Protection
HP6                                                 $344,337         $343,902                        $435
                Upgrade
                                                                                                                (X393- Cost increase associated with work
                                                                                                             restrictions during EBA negotiations. Effected by
Insulator1      Line Insulator replacement        $6,550,510       $7,666,726                  -$1,116,216
                                                                                                              ETU industry action hence additional cost were
                                                                                                                                    incurred).
                                                                                                                  X263- Original estimate was based on an
                Line Insulator Replacement on                                                                    installation rate where the contractor losat
Insulator2                                        $1,566,415         $999,383   $1,303,900        $567,032
                220kV lines YPS-ROTS 6 & 7.                                                                    money. The true rate was much higher during
                                                                                                                                   the project.
                                                                                                               The figure in the 'Grand Total' (column 'C') is
                Earth-wire Bonds and Laser
LG1                                                  $39,900         $382,804    $502,782        -$342,904   actual -to-date, not a forcast. The forecast to the
                Survey
                                                                                                                   the end of the project was not included.
                                                                                                                   (X242- due to additional work & excess
                Miscellaneous Control and
MC1                                               $3,182,135       $3,054,325                     $127,810     expenses that was not foreseen at the time of
                protection Works
                                                                                                                            the A to P preparation ).
                Replacement of Various
MC2             Analogue VF Systems – Stage         $626,190         $641,300                     -$15,110
                2




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                                                                                                     DIFFRENCE
                                                                                                     BETWEEN
                                                                        ORIGINAL       REVISED        ORIGINAL                Reason for Variation
                                                                      BUSINESS CASE   BUSINESS     BUSINESS CASE
Project Group         Project Description            Grand Total      COST ESTIMATE     CASE         & ACTUAL
                Control System Upgrade &                                                                         X126-Increased engineering, supplier and delay
MC3             Replacement at Various                   $3,609,489      $2,294,953   $3,211,953      $1,314,536 costs were associated with the implementation
                Stations                                                                                                    of new SCIMs technology.
                                                                                                                   This group is made up of over 120 projects
                                                                                                                  spread out over several years therefore costs
misaexpost      Miscellaneous projects                   $7,703,227      $7,565,168                    $138,059
                                                                                                                   will vary slightly from the original business
                                                                                                                                        cases.
                Minor protection, control
MISS1           communications and other                  $868,641         $603,980    $413,980         $264,661       Scope increase in the control systems
                projects
                Installation of isolating switches
                (two off) into connections to the
NA1                                                       $110,394         $122,685                     -$12,291
                No’s 1 and 3 66kV Buses at
                WMTS
                NEMMCO Metering Upgrades &
NM1                                                      $5,941,281      $6,692,037                    -$750,756 Work completed at cheaper rate than estimated.
                unplanned metering work.
                Instrumentation changes at
NM3                                                        $34,653          $26,724                       $7,929
                BATS and TGTS
                                                                                                                 # X216- Error in the document scanned into the
                Installation of OPGW in the                                                                       project database system. The A to P amount
OPGW1                                                    $2,921,644      $2,745,000   $3,142,800        $176,644
                Metro Area                                                                                         has now been corrected - column 'D'. The $
                                                                                                                    difference is within the estimate variance.
                                                                                                                 The cost of field works was lower than expected
OPGW2           OPGW in Various Locations               $16,728,991     $17,844,038                  -$1,115,047
                                                                                                                          due to fewer road crossings.
                OPGW SMTS-EPS-MBTS-                                                                                 During this project/period the cost of fibre
OPGW3                                                    $6,067,562      $8,065,000                  -$1,997,438
                DDTS                                                                                                           dropped dramatically.
                OPGW WOTS-T401 JSS Line &
OPGW4                                                    $4,165,169      $4,245,625                     -$80,456
                DDTS-MSS
                                                                                                                      X272 Due to the extra engineering effort
                                                                                                                  required to connect the suppliers product with
                Private Automatic Branch
OTN1                                                     $2,106,637      $1,861,000   $2,060,570        $245,637 the existing comms network.Equipment needed
                Exchanges
                                                                                                                    to satisfy SP AusNet design standards and
                                                                                                                                    interfaces.




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                                                                                                  DIFFRENCE
                                                                                                  BETWEEN
                                                                     ORIGINAL       REVISED        ORIGINAL                 Reason for Variation
                                                                   BUSINESS CASE   BUSINESS     BUSINESS CASE
Project Group        Project Description          Grand Total      COST ESTIMATE     CASE         & ACTUAL
                                                                                                               Project has only just commenced. The A to P
                Geelong Terminal Station (GTS)
RE3                                                  $11,286,161     $19,134,433                  -$7,848,272   covers both EX-POST and EX-ANTE period.
                Refurbishment – X508
                                                                                                                 The difference is in the EX-ANTE template.
                Keilor Teminal Station 500 kV                                                                 Finance differences. The values shown are only
RE7                                                   $2,141,974      $2,100,000                      $41,974
                Refurbishment                                                                                              the EX_POSTE period.
                Replacement of 66kV shunt                                                                     The project has been completed for $600K less
REACT1          reactors at HOTS, KGTS &              $3,136,158      $3,787,100                    -$650,942 than estimated. Reactors were cheaper than
                RCTS                                                                                                         originally estimated.
                Refurbishment of the
REACT2          synchronous condensor at              $1,918,326      $1,880,000                      $38,326
                BLTS
REACT3          Rrefurbish SVC                         $478,045         $474,162                       $3,883
                Replacement of 66kV reactor
REACT4                                                 $252,770         $270,000                     -$17,230
                switching cb at KGTS
                Replacement of radiators &
                modification of CT secondary
REACT5                                                 $297,315         $333,000                     -$35,685
                terminal boxes on MLTS 550kV
                shunt reactors.
                                                                                                                The figure in the 'Grand Total' (column 'C') is
                Replacement of capcitor bank
REACT6                                                 $101,745         $290,600                    -$188,855 actual -to-date, not a forcast. The forecast to the
                capacitor cans
                                                                                                                  the end of the project was not included.
                Replacement Circuit Breakers
REACT7          And Provision Of Maintenance           $153,406         $179,200                     -$25,794
                Spares
                                                                                                               This project was classified 'non-System', hence
                Development of Station Design
S4                                                        $8,014        $394,542                    -$386,528 costs were assigned -non-system. The costs are
                Manual
                                                                                                                        in the 'Non-System template.
                Station Control Instrumentation
                                                                                                                 X252 additional expenditure to complete the
SC1             & Management Systems                   $843,513         $887,777    $917,877         -$44,264
                                                                                                                  new technology risk management facility.
                (SCIMS)
                                                                                                                X518-Increased scope and project duration due
SCADA1          SCADA Support Replacements            $1,289,233        $890,897   $1,465,720        $398,336    to the requirement to replace legacy comms
                                                                                                                                 equipment




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                                                                                                    DIFFRENCE
                                                                                                    BETWEEN
                                                                       ORIGINAL       REVISED        ORIGINAL                 Reason for Variation
                                                                     BUSINESS CASE   BUSINESS     BUSINESS CASE
Project Group         Project Description           Grand Total      COST ESTIMATE     CASE         & ACTUAL
                                                                                                                  X491-This group requires work in many live
                SCIMS Integration Works at
SCIMS                                                   $1,072,756        $969,200                     $103,556    terminal Staions hence costs are difficult to
                Various Sites
                                                                                                                                     estimate.
                                                                                                                  The figure in the 'Grand Total' (column 'C') is
SD 1            Surge diverter replacements             $3,539,134      $3,919,385   $3,988,185       -$380,251 actual -to-date, not a forcast. The forecast to the
                                                                                                                     the end of the project was not included.
                Installation of CCTV                                                                                 Enhanced motion detection software not
SEC1            surveillance cameras in                 $2,036,545      $3,030,221                    -$993,676     implemented at this stage due to supplier
                Terminal Stations                                                                                                    problems.
                Replacement of Fencing –
SEC18                                                    $129,088         $164,845                     -$35,757
                HWTS
                Installation of Electronic Access                                                                  X332-Installation and design costs exceeded
SEC2            Controls and Motorised Gates            $3,883,800      $3,118,102   $3,650,149        $765,698     original estimate. Additional scope. Project
                at Terminal Stations                                                                                           delays (finance costs).
                                                                                                                  The figure in the 'Grand Total' (column 'C') is
                Fire Risk Mitigation at Various
SEC3                                                    $1,347,206      $2,099,133                    -$751,927 actual -to-date, not a forcast. The forecast to the
                Terminal Stations
                                                                                                                    the end of the project was not included.
                                                                                                                X552- Project cost increased due to increase in
                Security Fence Augmentation
SEC4                                                    $4,867,334      $5,330,734   $5,642,134       -$463,400 materials, trenching, interfacing and labour over
                and Building Exterior Hardening
                                                                                                                            previous work of this type.
                Replace premeter fence at
SEC5            WMTS and retaining wall at one           $269,253         $262,000                       $7,253
                of the neighbouring boundaries.

                Fire Detection and Altering
SEC9                                                    $1,126,268      $1,097,500                      $28,768
                Equipment in Terminal Stations
                                                                                                                   29 different projects make up this group and
                Building and infrastructure
SES2                                                    $2,395,871      $3,658,749                  -$1,262,878      they are in different stages of progress -
                works at various stations
                                                                                                                               forecast to be under..
                Fire Risk Mitigation at Various                                                                    Work not complete - several minor projects
SES3                                                     $143,871         $275,559                    -$131,688
                Terminal Stations                                                                                                     involved.
SES4            Replacement Air Conditioners             $532,034         $511,170                      $20,864




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d0f8e6e5-89e5-4e43-9d8f-a87d5d1a9471.xls                                                                                                                  8/11/2011 12:35 PM




                                                                                                  DIFFRENCE
                                                                                                  BETWEEN
                                                                     ORIGINAL       REVISED        ORIGINAL                  Reason for Variation
                                                                   BUSINESS CASE   BUSINESS     BUSINESS CASE
Project Group          Project Description        Grand Total      COST ESTIMATE     CASE         & ACTUAL
                Teleprotection modifications at
SMW2            ROTS, SMTS, YPS, HWTS &               $1,805,828      $2,063,000                    -$257,172            Cheaper fibre cable available.
                HWPS
                Isolation of comms circuits at
SMW3                                                   $209,283         $211,020                      -$1,737
                Terminal Stations
                                                                                                                       (X225 installation was excedded due to
SP1             Bus Protection Upgrades               $1,307,604      $1,288,912                      $18,692      tempoary installation of bus protections while
                                                                                                                                 project installation.)
                                                                                                                  Project is not finished. The costs in column 'C'
                Creation of Standard Protection
SPC1                                                   $243,407         $367,854                    -$124,447      are actuals - forecast costs were missed. It is
                and Control Schemes
                                                                                                                         expected to be completed for $367K.
                                                                                                                    # There is a typing error in the 'Template of
                                                                                                                  $500k', the revised A to P is $11,616,000. The
                                                                                                                   original work was to be internal but it was not
STN1            EPS - Station Refurbishment          $10,689,219      $8,966,000 $11,616,000       $1,723,219
                                                                                                                possible. The external contract were higher than
                                                                                                                      estimated - this was the first of the major
                                                                                                                                        rebuilds.
                                                                                                                   A circuit breaker failed forcing the work to be
STN10           Refurbishment works at DDTS           $4,509,610      $4,412,160                      $97,450
                                                                                                                     rushed. A result increased costs occurred.
                                                                                                                 Inaccurate estimate and scope increase caused
STN12           Refurbishment of RCTS                $14,968,401     $10,651,000                   $4,317,401
                                                                                                                                     the difference.
                Staged Refurbihsment of HOTS                                                                         X496-This project is also not complete the
STN15                                                $10,264,438      $9,853,000                     $411,438
                (stage one)                                                                                              forecast is currently being reviewed.
                                                                                                                  # - X497-Typing error in 'Template' original A to
STN16           Refurbishment of BETS                $14,449,673     $14,756,000                 -$306,327
                                                                                                                      P (business case) value is $14,756,000.
                                                                                                                   The connected customer would not allow the
                Refurbishment of MBTS 220kV
STN17                                                 $9,228,379      $8,877,980                     $350,399      outages, hence the works program had to be
                switchyard
                                                                                                                        altered which caused increased costs.
STN2            Refurbishment of KGTS                $10,096,092     $10,563,800                    -$467,708                 Within estimate accuracy.
                                                                                                                      X212- FEED & EPCM contractors, scope
                MBTS 66kV SwitchYard
STN3                                                  $2,911,098      $2,122,000   $2,974,000        $789,098         changes, increased finance charges and
                Refubishment
                                                                                                                          temporary work for added security.
                                                                                                                A number issues arose during the initial stages
                                                                                                                of the project:Noise levels, uncompacted fill,
STN4            BTS Redevelopment Project            $22,083,694     $18,740,000 $21,940,000       $3,343,694
                                                                                                                load sharing between transformers, rock and
                                                                                                                control were an issue.




                                                                                                                                                                          9
d0f8e6e5-89e5-4e43-9d8f-a87d5d1a9471.xls                                                                                                          8/11/2011 12:35 PM




                                                                                              DIFFRENCE
                                                                                              BETWEEN
                                                                  ORIGINAL       REVISED       ORIGINAL                 Reason for Variation
                                                                BUSINESS CASE   BUSINESS    BUSINESS CASE
Project Group        Project Description       Grand Total      COST ESTIMATE     CASE        & ACTUAL
                                                                                                             X320-Malvern is a very big 'Brown Field' site
STN5            MTS Redevelopment                 $38,574,429     $36,476,754                  $2,097,675 (Live)" which has only just commenced, hence
                                                                                                                         the costs are forecasts.
                                                                                                            X497 - Moved to a new control building due to
                                                                                                              problems with the existing building which
                                                                                                          resulted in increased scope & costs. Failure of a
                                                                                                              220kV CT during the project resulted in a
                                                                                                           significant project cost increas. The project was
STN6            Refurbishment of TGTS             $17,597,714     $14,528,000 $16,428,000      $3,069,714
                                                                                                            delayed more than 6 weeks, the construction
                                                                                                            metods had to change due to safety issues, a
                                                                                                           new bay had to be built, a transmission line had
                                                                                                          to be relocated and existing orders had to be put
                                                                                                                                 on hold.
                                                                                                             X339 A to P did not include all of the actual
                MWTS Relay House
STN7                                                 $53,876          $40,000     $53,500         $13,876 costs required to carry out the required works -
                Extensions/Rearrangements
                                                                                                                         scope underestimated..
STN8            Refurbishment of SHTS             $10,456,329     $10,800,000                   -$343,671              Within estimate accuracy.
                Refurbishment of Ballarat                                                                        Lower costs due to a very competitve
STN9                                              $14,559,217     $15,503,000                   -$943,783
                Terminal Station                                                                                 installation service provider contract.
                System Wide Monitoring
SWM1                                                $491,172         $482,704                      $8,468
                Facilities.
                KTS - Upgrade MLN Feeder
SWM2                                                $165,337         $162,497                      $2,840
                protection
                Replacement of 22kV Feeder                                                                   X367-Due to more complex/expensive relays
SWM3                                                $215,879         $141,105    $236,181         $74,774
                Protection at WMTS                                                                           used by Citypower than originally proposed.
                SEL 351A relays for HOTS -
SWM4                                                   $8,448          $8,000                        $448
                STL Feeders.
                                                                                                           The following group of projects ( 'T---'s ) are
                                                                                                          2007/2008 works which have not commenced.
                Battery and Charger                                                                       Business cases are currently being processed.
TAC                                                 $261,770         $252,000                      $9,770
                Replacements - Various Sites                                                              The differences are due to the original budget
                                                                                                            figures (Column D) have been refined as
                                                                                                               shown in (Column C) for the A to P




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d0f8e6e5-89e5-4e43-9d8f-a87d5d1a9471.xls                                                                                                      8/11/2011 12:35 PM




                                                                                                  DIFFRENCE
                                                                                                  BETWEEN
                                                                       ORIGINAL       REVISED      ORIGINAL         Reason for Variation
                                                                     BUSINESS CASE   BUSINESS   BUSINESS CASE
Project Group         Project Description            Grand Total     COST ESTIMATE     CASE       & ACTUAL

                Install Battery Charger Fail
TAC                                                       $138,763        $135,000                     $3,763   Refer to the above explanation.
                Alarm Circuitry at strategic sites
                Development of Asset Data
TAM                                                        $63,810         $60,000                     $3,810        "   "   "     "     "
                Gathering Head Site Systems
                Replacement of Station Control
TAM                                                       $821,707        $800,000                    $21,707        "   "   "     "     "
                System at HYTS
TAM             Instrumentation Upgrades                  $202,800        $200,000                     $2,800        "   "   "     "     "
                Purchase of RF Equipments
TCM             and development of RF                     $102,949        $100,000                     $2,949        "   "   "     "     "
                techniques
                Condition Monitoring Head Site
TCM             Development - "PI" type                    $29,879         $28,000                     $1,879        "   "   "     "     "
                Database
                Power System Quality Monitor
TCM                                                       $220,995        $219,000                     $1,995        "   "   "     "     "
                Replacement
                Dynamic System Monitor
TCM             Replacement with enhanced                 $524,367        $507,000                    $17,367        "   "   "     "     "
                High Speed Monitor function
                Upgrade PQSM and DSM
TCOMMS          installations at various sites             $53,216         $50,000                     $3,216        "   "   "     "     "
                (auto reset)
                Replace Malvern Area Centre
TCOMMS                                                     $75,171         $75,000                      $171         "   "   "     "     "
                PABX
                Further development of ADG
TCOMMS                                                     $75,015         $72,000                     $3,015        "   "   "     "     "
                Network data access interfaces
                Strengthen Melbourne to LV
TCOMMS          Radio Comms Links (Capacity               $213,423        $200,000                    $13,423        "   "   "     "     "
                Issues)
                Refurbish Communications
TCOMMS          Cabling/Interfaces at various             $462,185        $450,000                    $12,185        "   "   "     "     "
                Terminal Stations
                Install Isolation of Telstra
TCOMMS          Services at Richmond and                   $62,299         $60,000                     $2,299        "   "   "     "     "
                ROCC




                                                                                                                                                             11
d0f8e6e5-89e5-4e43-9d8f-a87d5d1a9471.xls                                                                                           8/11/2011 12:35 PM




                                                                                              DIFFRENCE
                                                                                              BETWEEN
                                                                   ORIGINAL       REVISED      ORIGINAL     Reason for Variation
                                                                 BUSINESS CASE   BUSINESS   BUSINESS CASE
Project Group         Project Description       Grand Total      COST ESTIMATE     CASE       & ACTUAL
                220 & 66kV CT replacements -
TCT3                                                $3,881,649      $3,800,000                    $81,649   "   "   "    "     "
                stage 2
                Environmental Compliance
TE33                                                 $104,938         $105,333                      -$395   "   "   "    "     "
                works ,DDTS,SMTS,
                Ladders and Screens Stage 3
TEQP                                                  $50,966          $50,000                      $966    "   "   "    "     "
                (66kV Safe tower access)
                Ladders and screens Stage 4
TEQP                                                 $308,460         $300,000                     $8,460   "   "   "    "     "
                (330kV tower safe access)
Tinsulator      Insulator Replacement at APD         $152,069         $150,000                     $2,069   "   "   "    "     "
                Replacement of 16mm pin
Tinsulator                                           $560,009         $530,000                    $30,009   "   "   "    "     "
                insulators Stage 1
                Replacement of 16mm pin
Tinsulator                                          $2,065,516      $2,000,000                    $65,516   "   "   "    "     "
                insulators Stage 2
                ROTS CSC Thyrister and
TMC                                                  $321,227         $300,000                    $21,227   "   "   "    "     "
                Control Replacement
                Establishing of Remote
TMC             Synchronising Capability fron         $52,272          $50,000                     $2,272   "   "   "    "     "
                TOC at EPSY
                Replace ATS RTU & Local
TMC                                                  $328,873         $320,000                     $8,873   "   "   "    "     "
                controls
                Replace YPS RTU & Local
TMC                                                 $1,435,956      $1,400,000                    $35,956   "   "   "    "     "
                controls
                Replace HWPS RTU & Local
TMC                                                  $302,880         $300,000                     $2,880   "   "   "    "     "
                controls
                Replacement of Protection &
TMC             Control on 66kV LV & LVN             $323,447         $319,000                     $4,447   "   "   "    "     "
                Feeders at BLTS
                T15 Refurbishment of the
TREACT          Synchronous Condensor at            $1,469,072      $1,440,000                    $29,072   "   "   "    "     "
                FBTS
                Replacement of No 1 shunt
TREACT                                               $322,286         $319,000                     $3,286   "   "   "    "     "
                reactor at HOTS
TS9             Technical standards                   $38,156          $36,000                     $2,156   "   "   "    "     "
TSCADA2         Replace BLTS RTU                     $409,870         $400,000                     $9,870   "   "   "    "     "
                Surge Arrester Replacement -
TSD                                                  $259,879         $252,000                     $7,879   "   "   "    "     "
                Stage 1




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d0f8e6e5-89e5-4e43-9d8f-a87d5d1a9471.xls                                                                                                         8/11/2011 12:35 PM




                                                                                             DIFFRENCE
                                                                                             BETWEEN
                                                                 ORIGINAL       REVISED       ORIGINAL                 Reason for Variation
                                                               BUSINESS CASE   BUSINESS    BUSINESS CASE
Project Group         Project Description     Grand Total      COST ESTIMATE     CASE        & ACTUAL
                Surge Arrester Replacement -
TSD                                                  $91,240         $90,000                      $1,240               "   "   "     "      "
                Stage 2
                Cameras at Various Terminal
TSEC                                               $819,546         $800,000                     $19,546               "   "   "     "      "
                Stations - Stage 2
TSEC            Security SYTS                      $441,598         $428,000                     $13,598               "   "   "     "      "
                RTUs and Local Alarm System
TSEC                                               $614,071         $600,000                     $14,071               "   "   "     "      "
                at SMTS
TSEC            Security KTS                       $584,151        $573,000                      $11,151               "   "   "     "      "
TSEC            Security GTS                       $122,849        $120,000                       $2,849               "   "   "     "      "
TSEC            Security HYTS                      $714,830        $694,000                      $20,830               "   "   "     "      "
TSEC            Security WOTS                      $140,167        $141,000                        -$833               "   "   "     "      "
TSEC            Security MLTS                     $1,351,140      $1,310,000                     $41,140               "   "   "     "      "
                Security cameras installed at
TSEC                                               $308,444         $300,000                      $8,444               "   "   "     "      "
                various Terminal Stations
TSEC            Security DDTS                        $47,857         $45,000                      $2,857               "   "   "     "      "
TSEC            Security BTS                       $258,429         $243,000                     $15,429               "   "   "     "      "
TSES            Additional works at CBTS           $253,453         $250,000                      $3,453               "   "   "     "      "
                Approved in 05/06 managed by
TSES                                                 $47,200         $47,200                          $0               "   "   "     "      "
                Program Delivery
                Approved carryover works
TSES            managed by D&D (Program            $446,300         $446,300                          $0               "   "   "     "      "
                Delivery)
TSTN            RWTS feed study                      $62,726         $60,000                      $2,726                " " "          "      "
TSTN            DDTS feed study                      $40,000         $40,000                          $0                " " "          "      "
TSTN            HWPS feed study                      $60,206         $60,000                       $206                 " " "          "      "
TSTN            TTS feed study                       $60,000         $60,000                          $0                " " "          "      "
                                                                                                         # There is a typing error in the 'Template' the A
                Transformer Refurbishment
TX                                               $2,068,826       $2,146,128                 -$77,302        to P (business) Value is $2,146,128 not
                HWTS
                                                                                                                            $2,068,826.
                                                                                                         This project involved trenching and working with
                Transformer Winding
                                                                                                         the older transformers to retrofit transducers on
TX1             Temperature Indicator              $879,629         $644,643    $688,000        $234,986
                                                                                                           them it has been very difficult to estimate the
                Replacement
                                                                                                                         field works costs.
                Transformer Refurbishment
TX11                                               $569,858         $616,000                    -$46,142
                FBTS




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d0f8e6e5-89e5-4e43-9d8f-a87d5d1a9471.xls                                                                                                          8/11/2011 12:35 PM




                                                                                             DIFFRENCE
                                                                                             BETWEEN
                                                                  ORIGINAL       REVISED      ORIGINAL                 Reason for Variation
                                                                BUSINESS CASE   BUSINESS   BUSINESS CASE
Project Group          Project Description     Grand Total      COST ESTIMATE     CASE       & ACTUAL
                Transformer Refurbishment
TX2                                                 $433,435         $466,000                   -$32,565
                KTS
                Replace MBTS Tie
                Transformer, DDTS H2
TX3                                               $12,159,403     $12,347,228                  -$187,825             Within estimate accuracy.
                Transformer and BLTS 66/22
                kV Tie transformer
                Transformers bushings and
TX4             other auxiliary equipment          $1,083,235      $1,030,271                    $52,964                Finance differences
                replacement
                Replacement of Transformer
TX6             Protection & Control Schemes        $723,765         $736,500                   -$12,735
                at Dederang Terminal Station
                Installation of the country
TX8                                                $2,266,089      $2,327,089                   -$61,000   # There is a typing error in the actual column.
                transformer
                Spare Bushings for ASEA
TX9                                                    $3,114        $158,000                  -$154,886     The bushings were transferred to store.
                220kV Bushings
                Control Centre – Control and                                                                Vendor Provided a trial setup, resulting in a
VNSC1                                               $602,054         $764,400                  -$162,346
                Monitoring Systems                                                                                  lower final project costs.
Grand Total                                     $421,781,192     $421,039,768




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