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9902b63a-59e5-4702-9d44-53209518a303.xls 7/12/2011 3:42 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.
1
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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
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
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
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
3
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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
4
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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
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.
6
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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
7
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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
8
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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
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.
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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
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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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
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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
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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9902b63a-59e5-4702-9d44-53209518a303.xls 7/12/2011 3:42 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
13
9902b63a-59e5-4702-9d44-53209518a303.xls 7/12/2011 3:42 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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