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The Electricity Supply Industry Planning Council T he Pla nning - - PowerPoint PPT Presentation

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The Electricity Supply Industry Planning Council T he Pla nning Co unc il is a sta tuto ry c o rpo ra tio n fo rme d unde r the E le c tric ity Ac t Ope ra te s unde r the c o ntro l o f a Bo a rd o f 5 me mb e rs thre e me mb

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SLIDE 1

Slide: 1

The Electricity Supply Industry Planning Council

T

he Pla nning Co unc il is a sta tuto ry c o rpo ra tio n fo rme d unde r the E

le c tric ity Ac t

Ope ra te s unde r the c o ntro l o f a Bo a rd o f 5

me mb e rs

thre e me mb e rs re pre se nt industry se c to rs; the c ha ir a nd o ne me mb e r a re inde pe nde nt

T

he E le c tric ity Ac t a nd o ur Cha rte r se t o ut

  • ur func tio ns a nd o b lig a tio ns

A sma ll c o rpo ra tio n o f 9 e mplo ye e s

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SLIDE 2

Slide: 2

AER Public Forum ElectraNet Revenue Proposal

E le c tr ic ity Supply Industr y Planning Counc il 24 July 2007

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SLIDE 3

Slide: 3

Role of the Planning Council

T he Pla nning Co unc il wa s e sta b lishe d to :

re vie w the de ve lo pme nt pla ns o f the

priva te industry pa rtic ipa nts a g a inst the fo re c a st ne e ds o f the Sta te ;

pro vide inde pe nde nt, e xpe rt a dvic e to the

Go ve rnme nt a nd the E sse ntia l Se rvic e s Co mmissio n o f So uth Austra lia (E SCOSA); a nd

fulfil a numb e r o f So uth Austra lia n

re pre se nta tive ro le s in the Na tio na l E le c tric ity Ma rke t.

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SLIDE 4

Slide: 4

Regulated Electricity Services

lia ising with sta te a nd fe de ra l re g ula to rs to

e nsure tha t ne two rk re g ula tio n is e ffe c tive fo r SA;

wo rking with ne two rk se rvic e pro vide rs o n the

e ffic ie nt, lo ng te rm de ve lo pme nt o f the po we r syste m a nd o f spe c ific ne two rk so lutio ns;

c o lla b o ra ting with NE

MMCO a nd inte rsta te pla nning b o die s se e king to e nsure e ffic ie nt de ve lo pme nt o f the na tio na l ne two rk; a nd

unde rsta nding the inte r-re la tio nship b e twe e n

the c o mpe titive a nd re g ula te d ma rke t se c to rs.

The Planning Council encourages efficient

  • utcomes in the regulated network services sector
  • f the industry by:
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SLIDE 5

Slide: 5

Reset Review

  • T

he Pla nning Co unc il ha s re vie we d the ne two rk a ug me nta tio ns in E le c tra Ne t’ s sub missio n a s a c o re pa rt o f wo rk o n re g ula te d ne two rk se rvic e s

  • a ll a ug me nta tio n to the tra nsmissio n ne two rk

pro po se d within the re ve nue re se t is so le ly drive n b y the ne e d to c o mply with re lia b ility sta nda rds in the So uth Austra lia E le c tric ity T ra nsmissio n Co de (E T C)

  • po te ntia l a ug me nta tio ns drive n b y ma rke t

b e ne fits (e g inte rc o nne c to r upg ra de s) a re

  • nly inc lude d a s c o nting e nt pro je c ts
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SLIDE 6

Slide: 6

Reset Review

T he Pla nning Co unc il:

  • pro duc e s the Sta te wide de ma nd a nd e ne rg y

fo re c a sts a nd re c o nc ile s tho se with c o nne c tio n po int fo re c a sts de ve lo pe d b y E T SA Utilitie s

  • ha s a pplie d the fo re c a st lo a ds fo r ye a r 2011/ 12

to the c urre nt ne two rk a nd ide ntifie d a re a s whe re sta nda rds in the E T C a re e xpe c te d to b e b re a c he d

  • c ro ss c he c ke d ide ntifie d re lia b ility c o nstra ints

with E le c tra Ne t’ s pro po se d pro je c ts

  • unde rta ke n a numb e r o f a na lysis in re g io ns to

a sc e rta in whe the r the pro po se d pro je c ts a re like ly to re pre se nt c lo se to o ptima l ne two rk de ve lo pme nt

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SLIDE 7

Slide: 7

Electricity Transmission Code

E

T C re lia b ility re la te s to the agr

e e d maximum de mand a t a c o nne c tio n po int

T

he a g re e d ma ximum de ma nd is se t b e twe e n E T SA Utilitie s a nd E le c tra Ne t b a se d o n E T SA’ s c o nne c tio n po int fo re c a sts

E

SI PC pro duc e s sta te wide fo re c a sts a nnua lly a nd re c o nc ile s the 10% pro b a b ility

  • f e xc e e da nc e fo re c a st with the se

c o nne c tio n po int fo re c a sts

T

he Pla nning Co unc il a pplie d a ne w te c hniq ue fo r fo re c a sting summe r pe a k de ma nd fo r the first time this ye a r

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SLIDE 8

Slide: 8

Sales and Demand Forecasts

Sa le s a nd De ma nd fo re c a sts E

c o no mic a ssumptio ns

T

ra nsmissio n c o nne c tio n po int fo re c a sts

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SLIDE 9

Slide: 9

Customer Sales

Sa le s ha ve b e e n g ro wing stro ng ly in the la st

two ye a rs

5.3% g ro wth in 06-07 a nd 9.1% o ve r pa st two ye a rs pric e re spo nse we a ke ning ; dro ug ht & pumping

lo a ds; we a the r e ffe c ts o n sa le s

L

  • we r g ro wth e xpe c te d in 07-08 – a ssume s

re turn to a ve ra g e we a the r

Ave ra g e g ro wth o f 1.3% o ve r ne xt de c a de

(b a se c a se e c o no mic o utlo o k)

0.9% fo r re side ntia l se c to r; 1.8% fo r b usine ss sa le s fo re c a sts a ssume c a rb o n pric e sig na l fro m 12-13

Hig h c a se inc lude s ma jo r e xpa nsio n o f

Olympic Da m mining o pe ra tio n

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SLIDE 10

Slide: 10

Customer Sales

9,000 10,000 11,000 12,000 13,000 14,000 15,000 16,000 17,000 18,000 19,000 20,000 1996-97 1997-98 1998-99 1999-00 2000-01 2001-02 2002-03 2003-04 2004-05 2005-06 2006-07 2007-08 2008-09 2009-10 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16 2016-17

Customer sales GWh

Actual Base High Low

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SLIDE 11

Slide: 11

System Load Factor

F

  • llo wing sho ws syste m lo a d fa c to r

b a se d o n 50% Po E

  • utc o me s a nd

inc luding wind g e ne ra tio n

L

  • a d fa c to r pro je c te d to re ma in

sta b le a t a ro und 53 % thro ug h the re ve nue re se t pe rio d

L

  • w b y industry sta nda rds b ut so me

impro ve me nt if Olympic Da m e xpa nsio n pro c e e ds

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SLIDE 12

Slide: 12

System Load Factor

40 42 44 46 48 50 52 54 56 58

2003-04 2004-05 2005-06 2006-07 2007-08 2008-09 2009-10 2010-11 2011-12 2012-13 load factor %

Actual Base High Low

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SLIDE 13

Slide: 13

Summer Peak Demand

F

  • llo wing fo c use s o n ‘ Native De mand’

whic h inc lude s:

pe a k sc he dule d de ma nd; ma rke t no n-sc he dule d g e ne ra tio n; wind g e ne ra tio n; a nd no tifie d de ma nd side pa rtic ipa tio n

Ac tua l 06-07 pe a k o f 2,942 MW o n 16 Ja n

07 (e stima te d 52% Po E

  • utc o me )

hig he r pe a k re a c he d in 05-06 (2,953 MW, 20 Ja n 06; 30%

Po E

  • utc o me )

ho we ve r la st summe r e xpe rie nc e d 5 da ys with de ma nd

  • ve r 2,800 a nd re c o rd no n-wo rk da y pe a k o f 2,866 MW
  • n 17 F

e b 07

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SLIDE 14

Slide: 14

Summer Peak Demand

2,250 2,500 2,750 3,000 3,250 3,500 3,750 4,000 4,250 4,500 4,750 5,000 1997-98 1998-99 1999-00 2000-01 2001-02 2002-03 2003-04 2004-05 2005-06 2006-07 2007-08 2008-09 2009-10 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16 2016-17 Native demand MW

Backcast PoE levels Actual 10% PoE demand 50% PoE demand 90% PoE demand

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SLIDE 15

Slide: 15

50% PoE Summer Peak Demand

Ba se c a se :

fo re c a st 50% Po E

le ve l fo r 07-08 is 3,069 MW

c o mpa re s with 2,942 MW la st summe r up b y 119 MW o n b a c kc a st 06-07 50% le ve l, fo re c a st a ve ra g e g ro wth o f 2.2% o ve r ne xt

10 ye a rs

fo re c a st fo r 2012/ 13 is 3,408 MW

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SLIDE 16

Slide: 16

10% PoE Summer Peak Demand

Ba se c a se :

fo re c a st 10% Po E

le ve l fo r 07-08 is 3,363 MW

up b y 143 MW o n b a c kc a st 06-07 10% Po Ele ve l, a ve ra g e g ro wth o f 2.3% o ve r ne xt te n yrs fo re c a st fo r 2012/ 13 is 3,736 MW

L

  • w c a se :

fo re c a st fo r 2012/ 13 is 3,534 MW

Hig h Ca se :

g ro wth o f 4.9% pa b a se d o n stro ng g ro wth in

the re so urc e s se c to r a nd the SA e c o no my

fo re c a st fo r 2012/ 13 is 4,441 MW

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SLIDE 17

Slide: 17

10% PoE Summer Peak Demand

Ba se c a se :

fo re c a st 10% Po E

le ve l fo r 07-08 is 3,363 MW

up b y 143 MW o n b a c kc a st 06-07 10% Po Ele ve l, a ve ra g e g ro wth o f 2.3% o ve r ne xt te n yrs fo re c a st fo r 2012/ 13 is 3,736 MW

L

  • w c a se :

fo re c a st fo r 2012/ 13 is 3,534 MW

Hig h Ca se :

g ro wth o f 4.9% pa b a se d o n stro ng g ro wth in

the re so urc e s se c to r a nd the SA e c o no my

F

  • re c a st fo r 2012/ 13 is 4,441 MW
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SLIDE 18

Slide: 18

Economic assumptions

E

c o no mic a ssumptio ns a re tho se supplie d b y NI E I R fo r the 2007 Sta te me nt o f Oppo rtunitie s

GSP

Ba se c a se a ssume s ro b ust g ro wth o f 2.3% in 07-08 (up

fro m 1.7% in 06-07)

slo we r g ro wth in 08-09 & 09-10 me dium te rm o utlo o k a ssume s stro ng c o mmo dity pric e s

a nd mining a c tivity in Austra lia Po pula tio n

Ba se c a se a ssume s a ve ra g e po pula tio n g ro wth a ro und

0.5% a nnua lly Re ta il pric e s

Ba se c a se - $15/ t c a rb o n pric e sig na l pha se d o ve r 5

ye a rs fro m 12-13

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SLIDE 19

Slide: 19

Economic assumptions - GSP

1 2 3 4 5 Jun-99 Jun-00 Jun-01 Jun-02 Jun-03 Jun-04 Jun-05 Jun-06 Jun-07 Jun-08 Jun-09 Jun-10 Jun-11 Jun-12 Jun-13 Jun-14 Jun-15 Jun-16 Jun-17 Real GSP growth rate % Actual Base High Low

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SLIDE 20

Slide: 20

Economic assumptions - Population

1,450 1,500 1,550 1,600 1,650 1,700 1997-98 1998-99 1999-00 2000-01 2001-02 2002-03 2003-04 2004-05 2005-06 2006-07 2007-08 2008-09 2009-10 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16 2016-17 Population 000's Actual Base High Low ABS Series B PlgSA 2m by 2050

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SLIDE 21

Slide: 21

Retail price assumptions

10 11 12 13 14 15 16

Jun-98 Jun-99 Jun-00 Jun-01 Jun-02 Jun-03 Jun-04 Jun-05 Jun-06 Jun-07 Jun-08 Jun-09 Jun-10 Jun-11 Jun-12 Jun-13 Jun-14 Jun-15 Jun-16 Jun-17 Average price 05-06 c/kWh Actual Base High Low

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SLIDE 22

Slide: 22

Major mining loads

Ba se & lo w c a se a ssumptio ns a re the

sa me

Pro mine nt Hill o pe ra ting fro m 2008 a nd

so me e xpa nsio n a t Ro xb y Do wns

a ro und 60 MW rise in pe a k de ma nd a nd

a dditio na l 360 GWh e ne rg y re q uire d

Hig h c a se a ssume s ma jo r e xpa nsio n o f

  • pe ra tio ns a t Olympic Da m

inc re me nta l inc re a se o f a ro und 450 MW in

pe a k a nd 3,000 GWh e ne rg y

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SLIDE 23

Slide: 23

Major mining loads

100 200 300 400 500 600 700

Jun-98 Jun-99 Jun-00 Jun-01 Jun-02 Jun-03 Jun-04 Jun-05 Jun-06 Jun-07 Jun-08 Jun-09 Jun-10 Jun-11 Jun-12 Jun-13 Jun-14 Jun-15 Jun-16 Jun-17 Major mining demand MW Actual Ave Actual Peak Ave Base & Low Peak Base & Low Ave High Peak High

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SLIDE 24

Slide: 24

Diversity of connection point loads

L

  • a d dive rsity e xa mine d o ve r first

3 q ua rte rs o f 2006-07

I

ndividua l c o nne c tio n po int lo a ds a g g re g a te d into re g io na l lo a ds a c ro ss SA

Re g io na l lo a d a t time o f Sta te -wide pe a k

  • n 16 F

e b 2007 c o mpa re d with o utrig ht ma ximum fo r e a c h re g io n

Ana lysis sho ws tha t so me lo a ds c a n b e

c o nside ra b ly g re a te r tha n a t the time o f the syste m pe a k – a ve ra g e diffe re nc e wa s a ro und 10%

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SLIDE 25

Slide: 25

Diversity of connection point loads

100 200 300 400 500 600 700 800 900 1,000 Demand MW 10 20 30 40 50 60 70 80 90 100 percentage Regional peak demand Demand at time of overall grid exit peak % of regional peak on at time of overall peak

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SLIDE 26

Slide: 26

Comparison with state-wide peak demand forecasts

Co nne c tio n po int lo a ds a djuste d fo r 10%

dive rsity fa c to r, lo sse s, g e ne ra to r lo a ds a nd e mb e dde d g e ne ra tio n the n c o mpa re d with Sta te -wide 10% Po E de ma nd fo re c a sts

Hig h le ve l o f c o nsiste nc y in the ne a r te rm,

with c o nne c tio n po int fo re c a sts b e ing up to 2% hig he r to wa rds the e nd o f the re se t pe rio d

Diffe re nc e like ly to re fle c t e c o no mic

a ssumptio ns, pa rtic ula rly a ssumptio n o f c a rb o n pric e sig na l po st 2012-13

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SLIDE 27

Slide: 27

Comparison with state-wide peak demand forecasts

500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 2007-08 2008-09 2009-10 2010-11 2011-12 2012-13 Demand MW

Aggregate connection point forecasts Summer 10% PoE forecasts

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SLIDE 28

Slide: 28

Electricity Transmission Code

F

  • rwa rd pla nning is re q uire d to ide ntify whe n

g ro wth in the fo re c a st ma ximum de ma nd a t a c o nne c tio n po int o r a g ro up o f c o nne c tio n po ints is una b le to b e de live re d with the re q uire d re lia b ility

T

he NE M Rule s re q uire jo int pla nning with E T SA Utilitie s a nd the a pplic a tio n o f the Re g ula to ry T e st to find the lo we st to ta l c o st so lutio n

T

he E T C re q uire s tha t E le c tra Ne t must use its b e st e nde a vo urs to e nsure tha t the c a pa c ity

  • f the ne two rk me e ts the re q uire d re lia b ility

sta nda rd within 12 mo nths.

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SLIDE 29

Slide: 29

ESIPC Network analysis

T

he Pla nning Co unc il unde rto o k a se rie s o f lo a dflo w a na lysis fo r 2011/ 12 to ide ntify ne two rk limita tio ns o n b o th a syste m no rma l a nd n-1 b a sis

T

  • o k a ne two rk mo de l upda te d to inc lude

pro je c ts to b e c o mple te d b e fo re c o mme nc e me nt o f re se t pe rio d

Applie d c o nne c tio n po int fo re c a st lo a ds fo r

2011/ 12

Adde d e stima te d lo sse s E

stima te d a dditio na l re a c tive po we r re q uire me nts

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SLIDE 30

Slide: 30

ESIPC Network analysis

Ba la nc e d the syste m with so urc e s o f re a c tive

a nd a c tive po we r

Ac tive po we r wa s supplie d b y a dditio na l

c o nve ntio na l g e ne ra to rs lo c a te d to minimise c o st to the sha re d tra nsmissio n ne two rk

APR a nd E

le c tra Ne t’ s Annua l re vie w pro vide info rma tio n o n o ptio ns

ma rke t b e ne fits c a se wo uld ha ve to b e ma de to

upg ra de ne two rk to re mo ve c o nstra ints o n g e ne ra to r o utput Re a c tive po we r so urc e s a ssume d a s SVC’ s

a nd c a pa c ity utilise d c he c ke d a g a inst E le c tra Ne t pro je c t pro po sa ls

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SLIDE 31

Slide: 31

Supply balance for 2011/12

2006/07 2011/12 Increase Total Load 3492 4212 125 4337 720 Losses 125 Generation + Imports 3617 720

Active Power (MW)

2006/07 2011/12 Increase

DEMAND (MVAr)

1408 1692

SUPPLY (MVAr)

1640 715 Transmission Lines 785 786 Imports

  • 40
  • 39

3100 Total Load 1175 470 Losses 1455 Generators + SVC 1180 Capacitors 705 Total MVAr Requirement 2630 470

Reactive Power (MVAr)

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SLIDE 32

Slide: 32

Load flow study –System normal analysis

L

  • a de d the b a se c a se fo r 2011/ 12

into PSS/ E – the industry sta nda rd lo a dflo w a na lysis pro g ra m

I

de ntifie d a ll c a se s whe re :

a tra nsmissio n line wa s running o ve r

its ra te d c a pa c ity

a tra nsfo rme r wa s running o ve r its

ra te d c a pa c ity; o r

a sub -sta tio n b us wa s running

  • utside vo lta g e limits
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SLIDE 33

Slide: 33

Load flow study –System normal analysis

Constrained Elements Identified

Mid-North Eyre Peninsula & Mid-North Mid-North

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SLIDE 34

Slide: 34

Load flow study – n-1 Analysis

No of Ne twor k E le me nts: 357 Bra nc he s 225 T ra nsforme r Cc ts (261 Buse s, 112 L

  • a ds, e tc )

CHE CK the solution T x L ine OL T / f OL Bus OV

RUN PSSE REPEAT

Out-of-Limit Check

EDIT Load Flow Data

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SLIDE 35

Slide: 35

Load flow study – n-1 Analysis

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SLIDE 36

Slide: 36

Load flow study – n-1 Analysis

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SLIDE 37

Slide: 37

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SLIDE 38

Slide: 38

Reconciliation with reset projects

T

he pro je c ts in E le c tra Ne t’ s sub missio n ha ve b e e n re c o nc ile d with E SI PC a na lysis (summa rise d in the fo llo wing )

F

e e db a c k b e twe e n E SI PC a nd E le c tra Ne t

  • ve r the pa st 6 mo nths ha ve re fine d the

a c tua l pro je c ts pro po se d

No t a ll ide ntifie d c o nstra ints ne e d to b e

re me die d. I n va rio us c a se s a n ina b ility to c a rry lo a dflo w fo llo wing a c o nting e nc y

ma y b e a c c e pta b le b e c a use o f the re lia b ility

sta nda rd a t the po int

ma y b e a ma tte r fo r the ma rke t b e ne fits te st ma y b e the re spo nsib ility o f o the rs no t

E le c tra Ne t a nd the sha re d ne two rk

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SLIDE 39

ODMW 53107 PLAY 53010 DAVN 53005 CULT 53015 WHYL 54025 YADN 54030 PLIN 54035 CANW 53050 ROBT 53155 TO TUNGKL TO PARA BUNGAMA 53135 BRNK 53144 HUMM 54350 MWP4 54160 WATL 54250 TEMP 54252 DORN 54254 MINT 54150 ROSW 54258 WUDN 54070 PTPR 54142 BARO 54140 275 kV 132 kV WOOM 54104 PIMB 54102 KADE 54364 ARDW 54356 DALR5 4358 STON 54020 MIDL 54028 IRON DUK 54209 CONSTRAINED ELEMENTS ODMN 54106 MGUN 54100 NEUR 54120 LCRS 54122 LCRK 54124 SLEAFORD 54038 WATTLE 54360

Upper-North Eyre Peninsula Mid-North

Yorke Peninsula

P12 P15 P14 C17 C7 C5 C2 P4 P18 P16 P2 P5 P13 P8 C1

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SLIDE 40

FROM ROBT FROM BANG, BRNK & ROSW PARA 53275 MILT 54822 ANGC 54826 MAP2 54832 MAP35 4830 MAP1 54836 MANN 54834 MOBL 54840 MHP2 54844 MHP1 54842 MHP3 54850 KANM 54848 MTBR 54780 CGDN 53770 MVE 53700 HVAL 53640 NFLD 53505 TAIL 53860 KEIT 54880 SNUG 54920 BLAN 54916 MGAM 54914 KINC 54908 PENW 54904 SEAS 53900 TO/FROM HYTS 275 kV 132 kV TUNGKL TIPS 53380 MAGL 53550 PELP 53370 PGW 53300 KILB 53470 LEFV 53416 MAYURRA 54925 ETCE 53600 CONSTRAINED ELEMENTS MILB 54824

Metropolitan Eastern Hills South-East

C9 C4 P11 C8 C6 C10 P3 P10 C13 C16 P17 P9 C12 C14

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SLIDE 41

Slide: 41

Other projects

Pro je c t 6 - CBD

Pro je c t is drive n b y ne w re lia b ility sta nda rd CBD is c urre ntly suppo rte d b y tra nsmissio n a nd sub -

tra nsmissio n no t mo de lle d in this wo rk Pro je c t 7 - So uthe rn sub urb s

re lie ve s Pa no ra ma sub -tra nsmissio n o ve rlo a d (no t

mo de lle d) in 66kV syste m supplying So uthe rn sub urb s

pro je c t le ve ra g e s o ff ne w City we st sub -sta tio n

Pro je c t 19 - Co o na lpyn We st

re lie ve s 33kV sub -tra nsmissio n syste m o ve rlo a d

Pro je c t 24 - RT

U re pla c e me nt

Pro je c t 25 - we a the r sta tio ns

slide-42
SLIDE 42

Slide: 42

Contingent projects

Pla nning Co unc il suppo rts the

a ppro a c h E le c tra Ne t ha ve ta ke n with c o nting e nt pro je c ts

Ra ng e o f o utc o me s in pro b a b ilistic

a sse ssme nt is tig hte r a nd a c c o unta b ility b e tte r a s a re sult

F

e w po te ntia lly la rg e c o nting e nt pro je c ts

slide-43
SLIDE 43

Slide: 43

Contingent projects

Co nting e nt Pro je c t 1 – E

yre pe ninsula

Ma jo r ne two rk upg ra de c o nting e nt o n ma jo r ne w

lo a ds o n E yre Pe ninsula – e xisting syste m is he a vily lo a de d Co nting e nt Pro je c t 2 – Rive rla nd

suppo rt a va ila b le fro m Murra ylink is e sse ntia l to

Rive rla nd re lia b ility – c o mple x q ue stio n g ive n c o nstra ints o n Murra ylink Co nting e nt Pro je c t 17 – No rthe rn tra nsmissio n

c o nting e nt o n BHP-Billito n a nd re g ula to ry de c isio ns

Co nting e nt Pro je c t 16 – I

nte rc o nne c to r Upg ra de

no t justifia b le a t this time b ut ma rke t c o nditio ns c o uld

c ha ng e q uic kly

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SLIDE 44

Slide: 44

Limitations of ESIPC analysis

T

he Pla nning Co unc il’ s a na lysis ha s b e e n limite d a nd fo c usse d o n ne two rk de ve lo pme nt

Ha ve no t e xa mine d a numb e r o f

impo rta nt issue s inc luding :

e stima te d pro je c t c o sts a sse t c o nditio n a nd re furb ishme nt

pro g ra m a nd c o sts;

  • ptimisa tio n o f c o nting e nt pro je c ts; o r
  • the r spe nding