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ABT / IEGC CLAUSES
While making or revisingtheir declaration of
capability, the generatorshall ensure that theirdeclared capability duringpeak hours is not less thanthat during other hours.
ABTSchedule-I ara ! "iii#
"age iii#
Capability Declaration during Peak hours:
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ABT / IEGC CLAUSES
The generating units
operating at about $%%&of their '() shall becapable of "and shall notbe prevented from # going
at least up to $%*& oftheir '() +henfreuency falls suddenly.
I( (hapter-/,
ara /.0"g#"age /.0#
Generation beyond DC
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ABT / IEGC CLAUSES
ABTSchedule-I ara1"ii#
"agev#
S2( for Thermal Stations
shall be the 3(, +ith allbefore-the-fact revisions 4updating. The declared
capacity shall not e5ceedthe installed capacity.
Generation beyond DC
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ABT / IEGC CLAUSES
In case it is observed that thedeclaration of its capability by
the generator is on lo+er sideand the actual generation ismore than 3(, then 6I chargesdue to the generator on
account of such e5trageneration shall be reduced to7ero and the amount shall becredited to+ards 6I account ofbene8ciaries in the ratio of
ABT Schedule-$ ara-/
"age vi#
Generation beyond DC
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ABT / IEGC CLAUSES
In case of gas turbine 4combined cycle stations,the generator shall give3( for units 4 modules ongas fuel and 3( for units 4modules on liuid fuelseparately.
ABTSchedule-I ara 1
"9ote $#"age v#
Separate Schedules for Gas/Liquid
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ABT / IEGC CLAUSES
):3( may direct the
S:3(s4 ISS toincrease4decrease theirdra+al 4 generation in
case of contingenciese.g. overloading of lines 4transformers, abnormalvoltages, threat tos stem securit .
I((hapter-;ara ;.1.<
"age-;.!#
Revision of Schedules initiated by RLDCs
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ABT / IEGC CLAUSES
):3( may revise the
schedule in the interestof better systemoperation +.e.f 1th time
block.
ABTSchedule-$ara-!"5v#
Revision of Schedules initiated by RLDCs
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ABT / IEGC CLAUSES
)evision of declared capability by
generator "s# and reuisition bybene8ciary"ies# for the remainingperiod of the day +ill also bepermitted +ith advance notice.)evised schedules 4 declaredcapability in such cases shallbecome e=ective from the /th timeblock, counting the time block in+hich the reuest for revision has
been received in ):3( to be the
ABTSchedule-$ ara "5iv#
"age "iv#
Revision of schedules at the request of Generators/States
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ABT / IEGC CLAUSES
While 8nalising the above dailygeneration schedules for the
ISS, ):3( shall ensure thatthe same are operationallyreasonable, particularly interms of ramping-up4ramping-
do+n rates and the ratiobet+een minimum andma5imum generation levels.
I((hapter-;ara ;.*.;"age ;.*#
Raping!up/Raping!do"n
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ABT / IEGC CLAUSES
The )egional :oad 3espatch
(entre may give suchdirections and e5ercise suchsupervision and control as
may be reuired for ensuringintegrated grid operationsand for achieving thema5imum economy and
e>ciency in the operation of
I( (hapter-0
ara 0.0. "0#"age 0-$#
#ntegrated Grid $perations and %conoey
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ABT / IEGC CLAUSES
The primary ob?ective of integratedoperation of the )egional grids is toenhance the overall operationaleconomy and reliability of theentire electric po+er net+orkspread over the geographical area
of the interconnected States.articipant utilities shall co-operate+ith each other and adopt ood6tility ractice at all times for
satisfactory and bene8cialo eration of the )e ional rid.
I((hapter-/ara /.$
"a# "age /-$#
#ntegrated Grid $perations and %conoey
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ABT / IEGC CLAUSES
I(
(hapter0ara0./"$#
"age0-1#
Sub?ect to the provisions ofsub-section **"!# of the Act,
State :oad 3espatch (entre ina State may give suchdirections and e5ercise suchsupervision and control as may
be reuired for ensuring theintegrated grid operations andfor achieving the ma5imum
economy and e>ciency in theo eration of the o+er s stem
#ntegrated Grid $perations and %conoey
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ABT / IEGC CLAUSES
The system of each State
shall be treated and operatedas a notional "@e5ible# controlarea. The summation ofscheduled dra+al from ISS
and any bilateral inter-changeshall provide the dra+alschedule of each State, andthis shall be determined in
advance on daily basis.
I( (hapter-;ara ;.1 "0#
"age ;-0#
#ntegrated Grid $perations and %conoey
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ABT / IEGC CLAUSES
The )egional grids shall be operated asloose po+er pools in +hich the Statesshall have full operational autonomy, andS:3(s shall have the total responsibilityfor-
i# scheduling 4 despatching their o+ngeneration "including the generation oftheir captive licensees#,
"ii# regulating the demand of their
customers,
"iii# scheduling their dra+al from the ISS"+ithin their shares in the respectiveplants capability#,
I((hapter-;ara ;.1"$#"age ;-$#
#ntegrated Grid $perations and %conoey
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ABT / IEGC CLAUSES
Based on the reuisitions
given by the bene8ciaries andtaking into account technicallimitations on varying thegeneration and also taking
into account transmissionsystem constraints, if any,):3( shall prepare theeconomically optimalgeneration schedules.
ABT Scheduleara ! "vi#
"age iii#
#ntegrated Grid $perations and %conoey
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Existing Tariff Availability Based Tariff
Based on K.P.Rao CommitteeReport
Based on E.C.C Report
Two Part Tariff
I. Fixed Carges
II. !ariable Carges
Tree Part Tariff
I. Capa"ity Carges
II. Energy Carges
III. #.I.Carges
Fixed "arges re"overy
proportional to $rawal.It t%sbe"omes single part tariff
Capa"ity "arges re"overy
proportional to Entitlement & Allo"ation of Capa"ity 'are
F.C. f%lly re"overed at ().*+,P-F in"l%ding deemed
generation
C.C.f%lly re"overed at T.A. of+, as de"lared by te
/enerating Company.
TARIFF COMPARISON
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What is Availability
Availability means te readiness of te generating station todeliver Ex.B%s o%tp%t expressed as a per"entage of its rated
Ex.B%s o%tp%t "apability as per rated "apa"ity.
0 It is different from te existing terminology1 present
term in"l%des only te stat%s weter in servi"e 2 3,4 or
o%t of servi"e 2 ,4.
0 Te term availability in te present "ontext "o%ld be
defined as te 56 "apability of te generator for s%pplying tote grid after a""o%nting for te planned and %nplanned
o%tages and d%ration d%e to non availability of a%xiliaries1 f%el
and water.
TARIFF COMPARISON
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Existing Tariff Availability Based Tariff
Te f%el ris7 is generallypassed on to te benefi"iaries. Te f%el ris7 is wit 8TPC.
Te Rate of Ret%rn sall be3(,
Te Rate of Ret%rn at 39, isprote"ted.233+9:la"s&yr4
Interest on -oan is at a"t%als; passed on to tebenefi"iaries.
+.:,of fixed "arge2+.:, of+9(3
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Existing Tariff Availability Based Tariff
Te >;5 Carges are ).:,of "%rrent "apital "ostes"alated ?3, per ann%m.
Te base level od >;5 sallbe average of a"t%al >;5expenses in te last five years23@@:@( to 3@@@) 4es"alated twi"e ?3, tobring it to 3@@@ ) level.
Es"alation in >;5 "ost to beprovided on te basis of aweigted pri"e index of CPI
29,4 and 6PI 2(,4.Base >;5 to be es"alated atte rate of (, per ann%m forte tariff period.2)3@=la"s&yr4
TARIFF COMPARISON
TARIFF COMPARISON
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Existing Tariff Availability Based Tariff
In "ase a"t%al es"alation is
witin ), of tis1 it sall beabsorbed by te %tility.$eviation beyond ), will bead%sted for wi" petition willave to be filled.
All Tax on in"ome in"l%dingin"entive is pass tro%g.
'ame sall "ontin%e.Tax on teoter in"ome streams a""r%ing tote "ompany sall not be passtro%g.
Tax Es"row a""o%nt to be opened byea" benefi"iaries.
Tax to be billed on regional basis sotat benefi"iaries paying iger "ostof new stations are also provided
advantage of tax oliday.
TARIFF COMPARISON
TARIFF COMPARISON
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Existing Tariff Availability Based Tariff
Interest on wor7ing "apital
in"l%des
Existing pra"ti"e to "ontin%e
Coal3.: mon1se" f%el)mon
>;5 exp3mon23,Es"4
Re"eivables)mon2f"Dv"4
=3: la"s2)(*4
TARIFF COMPARISON
a4 F%el "ost for one mont
and f%el sto"7 of 3: days
for pit ead stations ; =
days sto"7 for non pit ead
stations "al"%lated on
normative P-F basis.b4 ( days sto"7 of
'e"ondary f%el oil"al"%lated on normative
P-F basis."4 >peration ;
5aintenan"e expenses2Cas4 for one mont.
TARIFF COMPARISON
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Existing Tariff Availability Based Tariff
0d4 5aintenan"e spares
maxim%m of 3, of "apital "ostb%t not ex"eeding one yearsre%irement less one fift ofinitial spares already"apitalised.
e4 Re"eivables e%ivalent totwo monts average billing"al"%lated on normative P-Fbasis.
Existing pra"ti"e to "ontin%e.
TARIFF COMPARISON
TARIFF COMPARISON
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Existing Tariff Availability Based Tariff
8o provision of $evelopment
'%r"arge.
Te generating "ompany sall
be entitled to a developments%r"arge of :, on every billfor fixed "arges raised by it.
Te $.C.sall not be payablefor plants operating ex"l%sivelywitin a state.
-evy of $evelopment'%r"arge sall be s%be"t tote following "onditionsG
TARIFF COMPARISON
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Existing Tariff Availability Based Tariff
:, F.C. re"overable even at
Hero P-F
Proportionate re"overy of C.C
for Availability between to+,
Co%ld be in"reased to +: ,s%bse%ently at any time if te
experien"e di"tates s%" are%irement
Tis1 owever "o%ld be"onsidered for relief after d%e
%stifi"ation for plants aving
operational problem.
/ross /eneration ; $eemed/eneration is Certified by REB
Availability is determined byREB based on de"lared
"apability for ea" time blo"7.
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Existing Tariff Availability Based Tariff
For Certifi"ation of Ba"7ingdown1 te "apability to bedetermined by #nrestri"ted/eneration d%ring Pea7Period.Ba"7ing down sall be
te differen"e between"apability and te a"t%algeneration.
8o Provision for "ertifi"ation of$eemed /eneration.
!ariable Carges sall be paidon ea" %nit of A"t%al Energysent o%t from te station.
Energy Carges sall be paidon te Ex.B%s '"ed%leEnergy.
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It is te re"overy of variable "arges
based on s"ed%le generation in a time blo"7.
Energy Carges sall be wor7ed o%t on te basis of a
paisa&7w rate on exb%s energy s"ed%le to be sent o%tfrom tr generating station.
E.C. = RATE OF ENERGY CARGES ! SCE"ULE GENERATION
# E! BUS $
E%&'(y )ha'(&s*
Te rate of variable "arges as well as F%el pri"e ad%stment
sall be governed as per notifi"ation iss%ed by />I.
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Existing Tariff A.B.T
O+&'ati%( N,'-s
. &at Rat&
C,al Bas& Stati,%
'tabilisation G )( K"al&Kw
'%bse%ent Period G ): K"al&Kw
29 K"al&Kw sall be ded%"ted in : 56 %nits forele"tri"ally driven BFP4
Gas / Li01i Bas& Stati,%
6ito%t 8ox Control 6it 8oxControl
>pen Cy"le =3: K"al&Kw =3@K"al&Kw
Combined Cy"le )3 K"al&Kw )3):K"al&Kw
Existing to
"ontin%e)9(9.)@7"al&7w4
APC*.@=,s
'P >I-)ml&7w
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Existing Tariff A.B.T
2. A13ilia'y P,4&' C,%s1-+ti,%
C,al Bas& Stati,%
6itC.T 6ito%t C.T
) 56 'eries @.:, @.,
: 56 'eries
6it T$BFP +., *.:,
6it 5$BFP @.:, @.,
Gas / Li01i Bas& Stati,%
>pen Cy"le 3.,
Combined Cy"le =.,
2$%ring te stabilisation period1 normative APC sallbe re"7oned at .:, over and above te fig%respe"ified above.4
Existing to "ontin%e
APC*.@=,
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Existing Tariff A.B.T
5. S&),%a'y 61&l Oil C,%s1-+ti,%
'tabilisation Period :. ml&Kw
'%bse%ent Period =.: ml& Kw
9. Stabilisati,% P&'i, 'tabiliation period"ommen"ing from te date of "ommer"ialoperation sall be re"7oned as follows G
Coal Based & Termal 'tation 3+ $ays
>pen "y"le /as ; 8apta based station @
$aysCombined "y"le gas ; 8apta based station @ $ays
Existing to"ontin%e
'p.>il )ml&7w
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Existing Tariff A.B.T
7. "at& ,6 C,--&')ial O+&'ati,% Th& at&,6 ),--&')ial ,+&'ati,% ,+&'ati,% ,6 i%ivi1al1%its shall b& '&)8,%& as 6,ll,4s *
C,al Bas& / Th&'-al Stati,% N,t &3)&&i%( 9:ays 6',- th& at& ,6 sy%)h',%isati,%.
Gas / Li01i Bas& Stati,% F',- th& at& ,6Sy%)h',%isati,%
Existing to"ontin%e
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Existing Tariff Availability Based Tariff
In"entive is payable ? 3Paisa & Kw for every 3,in"rease in P-F 2In"l%dingdeemed generation4 above(+.9@ , .
Target availability+,.): paise&%nit flat rate.
In"entive billing in te ratio ofFixed Carges billed.
In"entive billing in te ratio ofEnergy '"ed%led bybenefi"iaries beyond targetP-F.
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Existing Tariff Availability Based Tariff
8o provision for #ns"ed%ledInter"ange Carges.
#ns"ed%led Inter"angeCarges sall be appli"able onte differen"e between a"t%algeneration & drawal and tes"ed%le generation & drawal.
#.I. 'all be wor7ed o%t onea" 3: min%te time blo"7.
#.I. Rate be based on teaverage fre%en"y of te timeblo"7.
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Existing Tariff Availability Based Tariff
8o provision for #ns"ed%ledInter"ange Carges.
Te #.I. Rates are as %nder.0:.: J and above < Hero
[email protected] and below < 9)P&Kw
0Between [email protected] ; :.: Jte #I rate is linear in steps of.) J wi" is 9.+ Paisa
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;7:
7.
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Availability ta'i66 i-+l&-&%tati,%
S)h&1l&
S,1th&'% R&(i,% :.:;.2::
East&'% R&(i,% :.:7.2::
N,'th&'% R&(i,% :.:?.2::
W&st&'% R&(i,% :.:9.2::
As re%ested by CT#1 CERC as extended implementation of
ABT in 8R ; 6R.
N,'th&'% R&(i,% :.:?.2::
W&st&'% R&(i,% :.:9.2::
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O+&'ati,% St'at&(y
0 A"ieve iger "apa"ity availability so tat fixed "ost
"an be re"overed %i"7ly.
0 Improvement in performan"e parameters so tat tese
"an be 7ept well below te normative val%es1 t%s
spending less for te same Ex.B%s energy.
0 Reg%lating te generation as per te fre%en"y profile
and ba"7down wen system fre%en"y is ig.6en #I
pri"e is lower tan te marginal "ost of generation.
To ma7e te rigt de"ision1 weter to generate or ba"7
down 1 te marginal "ost line 2 variable "arges4 "an be
s%perimposed on te #I pri"e&fre%en"y "%rve.
0 8o loss is s%ffered so long as te generation follows
te s"ed%le irrespe"tive of system "onditions.
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9@. :.:
STATION @ . C.#+aisa/84h
A 7:
B ::
C
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O+&'ati,% St'at&(y
0 It sall be desirable for te ma"ines to followfre%en"y in "oordinated "ontrol wit fre%en"y infl%en"e
on. Te dead bands "an be "osen for ea" ma"ine
based on marginal "ostI pri"e relation.
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P'&'&01isit& / I%6'ast'1)t1'& R&01'i-&%t 6,'
Availability Ta'i66
0 Reliable and dedi"ated voi"e ; data "omm%ni"ation
-in7 between ea" generating station 1 R-$C ; R
0 'etting %p regional "ontrol rooms for "ontin%o%s monitoring
and intera"tion wit R-$C&REB and stations.0 Installation of spe"ial energy meters for re"ording te
system parameters at a spe"ified time interval23:min4.
0 'ystem for Certifi"ation of Availability.
0 Finalisation of modalities & arrangements for %nloading of
data from te meters and ele"troni" transfer of te same to
R-$C and REB.
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P'&'&01isit& / I%6'ast'1)t1'& R&01i'&-&%t
6,' Availability Ta'i66
0 $evelopment of software for "e"7ing te Regional energy
a""o%nt.
0 Transparent settlement me"anism and energy
a""o%nting metodology.
0 Transparent >perating R%les 1 Agreements and
'ystem /%idelines.
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A)ti,% R&01i'& Iss1&s
0 Tere so%ld be software system s%pport available to te
operating personnel to de"lare availability and to ta7e de"isionregarding #.I.
0 Tere is a need to wor7 o%t te a"t%al "ost inp%t for
generation at different P-F. To wor7 o%t te margin available
at different loading of te ma"ine for de"iding abo%t te #.I.
0 Tere is a need to develop "ommer"ially oriented wor7
"%lt%re.
0 Tere is a need for vario%s se"tions to a"t as internal
"%stomer to ea" oter to optimise te "apa"ity1 reso%r"es and
brea7down time.
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