present conditions. frequency duration curve 2002-03, 2003-04, 2004-05 & 2005-06
TRANSCRIPT
PRESENT CONDITIONS
47.0
47.5
48.0
48.5
49.0
49.5
50.0
50.5
51.0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
% OF TIME --->
FR
EQ
IN H
Z -
-->
2002-03
2003-04
2004-05
2005-06
FREQUENCY DURATION CURVE 2002-03, 2003-04, 2004-05 & 2005-06
<49.0
49.0 & <50.5
50.5 & Above
Max Min Avg FVI
2005-06 2.76 97.2 .04 50.76 48.42 49.64 2.25
2004-05 0.13 98.70 0.17 50.90 48.62 49.85 0.83
2003-04 2.30 97.30 0.44 51.17 48.18 49.69 1.95
2002-03 49.48 48.51 2.01 51.37 47.69 48.95 18.86
FREQUENCY SPECTRUM OF SOUTHERN REGION FOR PAST SIX YEARS
MAXIMUM MINIMUM AVERAGE < 48.5 HZ48.5 TO 49.0 HZ
49.0 TO 49.5 HZ
49.5 TO 50.0 HZ
50.0 TO 50.5 HZ
> 50.5 HZ
2000 - 01 51.56 47.76 48.67 53.79 17.68 13.63 8.58 3.68 2.64 ---
2001 - 02 51.44 47.72 48.52 68.08 9.96 6.48 8.51 2.88 4.10 29.71
2002 - 03 51.37 47.69 48.95 39.31 10.17 14.48 23.93 10.10 2.01 18.86
2003 - 04 51.17 48.18 49.69 0.10 2.20 22.03 63.00 12.23 0.44 1.95
2004 - 05 50.90 48.62 49.85 0.00 0.13 8.49 63.81 27.40 0.17 0.83
2005 - 06 50.76 48.42 49.64 0.00 2.76 27.40 60.89 8.91 0.04 2.25
MONTHAVERAGE
FVI
FREQUENCY (Hz) % OF TIME WHEN FREQUECY WAS BETWEEN
COMPARISION OF BANGALORE VOLTAGE ON TYPICAL DAYS IN LAST FOUR YEARS
300
320
340
360
380
400
420
0:0
1
1:0
1
2:0
1
3:0
1
4:0
1
5:0
1
6:0
1
7:0
1
8:0
1
9:0
1
10
:01
11
:01
12
:01
13
:01
14
:01
15
:01
16
:01
17
:01
18
:01
19
:01
20
:01
21
:01
22
:01
23
:01
TIME IN HRS --->
VO
LT
AG
E IN
KV
---
>
2005
2002
2004
2003
VOLTAGE PROFILE OF SOUTHERN REGION FOR PAST SIX YEARS
AVG DAILY MAX
AVG DAILY MIN
AVG DAILY MAX
AVG DAILY MIN
AVG DAILY MAX
AVG DAILY MIN
AVG DAILY MAX
AVG DAILY MIN
AVG DAILY MAX
AVG DAILY MIN
AVG DAILY MAX
AVG DAILY MIN
2000 - 01 397 385 396 377 396 361 379 333 386 354 400 363
2001 - 02 405 394 409 388 404 366 396 345 399 369 406 369
2002 - 03 407 399 412 397 403 377 403 367 398 376 407 385
2003 - 04 409 402 411 397 415 398 405 385 417 403 412 400
2004 - 05 411 403 416 402 415 398 410 391 423 406 414 398
2005 - 06 413 405 422 408 418 398 410 389 421 399 409 392
YEARTRISSURRAMAGUNDAM HYDERABAD CUDDAPHA BANGALORE MADRAS
ISSUE:
In general it can be seen that SR
grid is shifting from low frequency/
low voltage to high frequency/high
voltage regime.
HIGH VOLTAGE CONDITIONS
HIGH FREQUENCY
HIGH VOLTAGE CONDITIONS
IN
SOUTHERN REGIONAL GRID
VARIATION OF MAXIMUM VOLTAGES IN SR GRID DURING NOV 2005
Issues Of Concern – High Voltage
• Frequent switching in/out of Lines– Resulting wear and tear of equipments
• Continuous High Voltage– Resulting damage to the equipments
• Network Redundancy is lost with opening of EHV lines
– causing Security concerns
• Opening of EHV lines causes increase in system losses
– Commercial losses
Actions Taken
• TAKING OUT THE LINE AND CONVERTING LINE REACTOR TO BUS
REACTOR
• MVAR ABSORPTION BY GENERATING UNITS
• TRANSFORMER TAP CHANGES
MANY ICT TAPS WERE CHANGED ON 400/220 ICT’s
• GT TAP CHANGES
• OPENING UP OF LIGHTLY LOADED REDUNDANT TIE LINES
• UTILISATION OF HYBRID AC/DC NETWORK
DIVERSION OF TALCHER STAGE 2 POWER THROUGH
GAJUWAKA
Desired Actions
• ABSORPTION OF VARS BY ALL THE OPERATING UNITS WITHIN THEIR CAPABILITY CURVES
• OPENING OF 220 KV AND BELOW LEVEL LIGHTLY LOADED LINES IN SATES
• GENERATORS ON SYNCH CONDENSOR MODE
• TO CARRY OUT DETAILED STUDIES TO FIND OUT REQUIREMENT OF ADDITIONAL REACTORS AT SUITABLE LOCATIONS
HIGH FREQUENCY
CONDITIONS
IN
SOUTHERN REGIONAL GRID
Month 49 - 50.5 Hz >50.0 Hz >50.5 Hz Avg. FreqSep-05 97.5 94.22 5.62 50.25Oct-05 97.47 96.04 2.53 50.22Nov-05 98.24 78.6 1.64 50.11
FREQUENCY PROFILE DURING THE MONTHS SEPTEMBER, OCTOBER, NOVEMBER 2005
Month 49 - 50.5 Hz >50.0 Hz >50.5 Hz Avg. FreqSep-04 99.91 48 0 49.98Oct-04 99.37 22.43 0.63 49.89Nov-04 99.63 17.76 0.04 49.80
Cont..
Issues Of Concern – High Frequency
• Wastage of Resources
• Grid Insecurity
• High Frequency also Causes High Voltage
• Damage to the Equipments
Cont..
ACTIONS TAKEN TO ARREST HIGH FREQUENCY:
• Reservoir based hydro backing/closing
• Liquid Fuel Stations backing/closing down
• Inter Regional Export under UI
• Thermal Stations backing/Closing down
• Exports under Short Term Open Access
(STOA )
Cont..
Details
Details
Details
TARIFF RELATED SOLUTION:
RATIONALISATION OF UI PRICE CURVE SLOPES
VARIABLE COST(Ps) OF POWER STATION IN SR AS ON JANUARY 2006
0
2400
4800
7200
9600
12000
14400
16800
19200
21600
24000K
UT
TA
LAM
(101
MW
) (7
3 P
S)
NE
YV
EL
II-S
TG
1 *
*(63
0 M
W)(
75 P
S)
TA
LCH
ER
ST
G I
I (2
000M
W)
(79
PS
)
KO
VIL
KA
LAP
PA
L *(
105
MW
)(80
PS
)
VA
LAT
HU
R(9
4MW
) (8
2 P
S)
AB
AN
PO
WE
R (
113M
W)
(88
PS
)
KO
TH
AG
UD
EM
(D)(
500
MW
)(96
PS
)
RA
MA
GU
ND
AM
(210
0 M
W)(
98 P
S)
NE
YV
ELI
-II
ST
G-I
I **
(840
MW
)(10
0 P
S)
JEG
UR
UP
AD
U (
GA
S)(
216
MW
)(10
2 P
S)
SP
EC
TR
UM
(G
AS
)(20
8 M
W)(
104
PS
)
RA
MA
GU
ND
AM
ST
III
(500
MW
) (1
04 P
S)
SIM
HA
DR
I(10
00 M
W)(
104
PS
)
RA
MA
GU
ND
AM
-B(6
2.5
MW
)(10
5 P
S)
VIJ
JES
WA
RA
M -
II(1
72.5
MW
)(10
7 P
S)
RE
INS
CA
LCIN
ING
LT
D.(
41 M
W)(
110
PS
)
KO
TH
AG
UD
EM
(B)(
210
MW
)(11
1 P
S)
KO
TH
AG
UD
EM
(A)(
240
MW
)(11
1 P
S)
KO
TH
AG
UD
EM
(C)(
220
MW
)(11
1 P
S)
VIJ
AY
AW
AD
A T
.P.S
.-1&
2(10
50 M
W)(
121
PS
)
VIJ
AY
AW
AD
A T
.P.S
.-3(
210
MW
)(12
1 P
S)
LAN
CO
(350
MW
)(12
5 P
S)
RA
ICH
UR
.T.P
S.
**(1
260
MW
)(12
5 P
S)
NE
YV
ELI
EX
PA
NS
ION
(42
0MW
) (1
35 P
S)
SR
IVA
TS
A
RA
YA
LAS
EE
MA
TP
P(4
20 M
W)(
153
PS
)
NO
RT
H M
AD
RA
S.T
.P.S
(630
MW
)(15
3 P
S)
VIJ
JES
WA
RA
M -
I(10
0 M
W)(
158
PS
)
ST
-CM
S(2
50 M
W)(
161
PS
)
ME
TT
UR
.T.P
.S(8
40 M
W)(
166
PS
)
B S
E S
(A
P)(
GA
S)(
140
MW
)(16
8 P
S)
TU
TU
CO
RIN
.T.P
.S(1
050
MW
)(18
2 P
S)
NE
YV
ELI
-I(6
00 M
W)(
185
PS
)
V S
P *
(120
MW
)(19
0 P
S)
PO
ND
Y P
CL
(32.
5 M
W)(
200
PS
)
EN
NO
RE
.T.P
.S(4
50 M
W)(
219
PS
)
L V
S(3
7.8
MW
)(22
0 P
S)
NE
LLO
RE
(30
MW
)(22
5 P
S)
NA
VB
HA
RA
T(3
5 M
W)(
240
PS
)
JIN
DA
L(26
0 M
W)(
280
PS
)
TA
TA
DE
ISE
L(81
.3 M
W)(
390
PS
)
RA
YA
LAS
EE
MA
(37.
8 M
W)(
390
PS
)
KO
ZH
IKO
DE
DP
P(1
28.8
MW
)(42
0 P
S)
GM
R V
AS
AV
I(19
6 M
W)(
444
PS
)
BA
LAJI
(SA
MA
YA
NA
LLU
R)(
105
MW
)(45
6 P
S)
BR
AH
MA
PU
AM
D P
P(1
06.5
MW
)(47
0 P
S)
KA
SA
RG
OD
P
C L
(21
MW
)(47
0 P
S)
SA
MA
LPA
TT
Y I
PP
(105
MW
)(47
4 P
S)
TH
AN
NE
ER
BA
VI(
235
MW
)(50
0 P
S)
PP
NA
LLU
R(3
30.5
MW
)(55
0 P
S)
B S
E S
(K
ER
ALA
)(16
5.5
MW
)(56
0 P
S)
KA
YA
MK
ULA
M N
TP
C(3
50 M
W)(
580
PS
)
YE
LEH
AN
KA
DE
ISE
L(12
7.92
MW
)(60
0 P
S)
BA
SIN
BR
IDG
E(1
20 M
W)(
863
PS
)
STATION, IC IN MW
CU
MU
LA
TIV
E IN
ST
AL
LE
D C
AP
AC
ITY
IN M
W
0
100
200
300
400
500
600
700
800
900
1000
VARIABLE COST
CUMULATIVE INSTALLED CAPACITY(MW)
UI_PRICE Vs FREQUENCY:- THE EFFECT OF PRICE VECTOR ON GENERATION
0306090
120150180210240270300330360390420450480510540570600630
48.5
0
48.6
0
48.7
0
48.8
0
48.9
0
49.0
0
49.1
0
49.2
0
49.3
0
49.4
0
49.5
0
49.6
0
49.7
0
49.8
0
49.9
0
50.0
0
50.1
0
50.2
0
50.3
0
50.4
0
50.5
0
50.6
0
50.7
0
50.8
0
50.9
0
51.0
0
51.1
0
FREQUENCY IN HZ
UI P
RIC
E IN
PA
ISA
/UN
IT
IN SR 16000MW OF THERMALS OUT OF 18300 MW (87%) HAS VARIABLE COST THAT FALLS IN THE RANGE OF 60PAISE TO 300 PAISE
THIS UI CURVE WAS IN EFFECT FROM 01JAN 03 TO 31 MAR 04
THIS UI CURVE WAS IN EFFECT FROM 01 APR 04 TO 30 SEP 04
UNITS WITH A VARIBLE COST OF 90 PAISE WOULD NOT REDUCE TILL FREQUENCY RISES ABOVE 50.2 HZ
UNITS WITH A VARIBLE COST OF 90 PAISE WOULD NOW HAVE TO REDUCE AT 50.00HZ ITSELF
UI_PRICE Vs FREQUENCY:- THE EFFECT OF PRICE VECTOR ON GENERATION
0306090
120150180210240270300330360390420450480510540570600
48
.50
48
.60
48
.70
48
.80
48
.90
49
.00
49
.10
49
.20
49
.30
49
.40
49
.50
49
.60
49
.70
49
.80
49
.90
50
.00
50
.10
50
.20
50
.30
50
.40
50
.50
50
.60
50
.70
50
.80
50
.90
51
.00
51
.10
FREQUENCY IN HZ
UI
PR
ICE
IN
PA
ISA
/UN
IT
IN SR 16000MW OF THERMALS OUT OF 18300 MW (87%) HAS VARIABLE COST THAT FALLS IN THE RANGE OF 60PAISE TO 300 paise
UI CURVE IN FORCE SINCE 01 OCT 04
FREQUI PRICE EXISTING
UI PRICE PROPOSED
48.7 570 57048.8 570 57048.9 570 57049 570 570
49.1 525 52249.2 480 47449.3 435 42649.4 390 37849.5 345 33049.6 300 28249.7 255 23449.8 210 18649.9 180 13850 150 90
50.1 120 7250.2 90 5450.3 60 3650.4 30 1850.5 0 050.6 0 050.7 0 050.8 0 050.9 0 051 0 0
SHOW TABLE HIDE TABLE HIDE GRAPHSHOW GRAPH
UI PRICE CURVE : EXISTING AND PROPOSED
0
50
100
150
200
250
300
350
400
450
500
550
600
48.7
48.8
48.9 49
49.1
49.2
49.3
49.4
49.5
49.6
49.7
49.8
49.9 50
50.1
50.2
50.3
50.4
50.5
50.6
50.7
50.8
50.9 51
FREQUENCY IN HZ
UI P
RIC
E
EXISTING UI CURVE
PROPOSED UI CURVE
570
210
90
KNEE POINT CHANGED FROM 49.8 TO 50 HZ
SLOPE OF HIGH FREQUENCY BAND CHANGED FROM 30ps/0.1 HZ TO 18ps/0.1 HZ
SHOW CHANGES
Tariff Related Solution
• Furthur Rationlisation of UI curve to address low frequency of operation the Proposed UI Curve and the details are as follows:
UI PRICE CURVE : EXISTING
0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
48.7
48.8
48.9 49
49.1
49.2
49.3
49.4
49.5
49.6
49.7
49.8
49.9 50
50.1
50.2
50.3
50.4
50.5
50.6
50.7
50.8
50.9 51
FREQUENCY IN HZ
UI
PR
ICE
570
210
KNEE POINT
UI PRICE CURVE : PROPOSED
0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
48.7
48.8
48.9 49
49.1
49.2
49.3
49.4
49.5
49.6
49.7
49.8
49.9 50
50.1
50.2
50.3
50.4
50.5
50.6
50.7
50.8
50.9 51
FREQUENCY IN HZ
UI
PR
ICE
570
90
UI PRICE CURVE : EXISTING AND PROPOSED
0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
48.7
48.8
48.9 49
49.1
49.2
49.3
49.4
49.5
49.6
49.7
49.8
49.9 50
50.1
50.2
50.3
50.4
50.5
50.6
50.7
50.8
50.9 51
FREQUENCY IN HZ
UI
PR
ICE
EXISTING UI CURVE
PROPOSED UI CURVE
90
FREQUI PRICE EXISTING
UI PRICE PROPOSED
48.7 570 95048.8 570 95048.9 570 95049 570 950
49.1 525 83049.2 480 71049.3 435 59049.4 390 47049.5 345 35049.6 300 30049.7 255 25049.8 210 20049.9 180 15050 150 100
50.1 120 8050.2 90 6050.3 60 4050.4 30 2050.5 0 050.6 0 050.7 0 050.8 0 050.9 0 051 0 0
SHOW TABLE HIDE TABLE
Breakup of STOA and UI in the Total Energy in SR
UI, 2641, 2%
STOA, 4958, 4%
Drawal from Grid,
120966, 94%
2004 – 05 2005 – 06
UI, 3723, 3%
STOA, 3113, 2%
Drawal from Grid,
141537, 95% All figures in MUs
Breakup of Export, Import and Wheeling in the STOA in SR
Export, 4803, 89%
Import, 437, 8%
Wheeling, 155, 3%
2004 – 05 2005 – 06
Export, 503, 16%
Import, 606, 19%
Wheeling, 2005, 65%
All figures in MUs
Constituent-wise STOA Import/Export Energy2004 – 05
519503
0
358
00
185
00
200
400
600
800
1000
1200
1400
1600
1800
2000
AP KPTCL KSEB TNEB
Import Export
All figures in MUs
2005 – 06
434
1717
356
808 842
3 0 00
200
400
600
800
1000
1200
1400
1600
1800
2000
AP KPTCL KSEB TNEB
Import Export
26
232
417
611
487 507
745
312
223
96
0 0 0 0 0 018 3 27 5223 25 0 0 010
103128118
00 00
0
100
200
300
400
500
600
700
800
Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05 Oct-05 Nov-05 Dec-05 Jan-06 Feb-06
Export Import Wheeling
Month-wise Export/Import/Wheeling through STOA
2004 – 05
26 21
91 9241
031 53
00
8231
0 0 0 0 0 0
252
0
171134
72
215267 279
306 305
0052 56
146128 122127
0
100
200
300
400
500
600
700
800
Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05
Export Import Wheeling
All figures in MUs
2005 – 06
Monthwise Export STOA by IPPs for 2005-06
9
126
142 144149
119
0
1318
0
20
40
60
80
100
120
140
160
Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05 Oct-05 Nov-05 Dec-05 Jan-06 Feb-06
Mu
JINDAL
NAVBHARAT
Monthwise STOA Export by APTRANSCO in 2005-06
10
103
3826
167
242262
49
215
356
101
0
50
100
150
200
250
300
350
400
Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05 Oct-05 Nov-05 Dec-05 Jan-06 Feb-06
Mu
Monthwise STOA Export by KPCL in 2005-06
54
190
43
0 00
20
40
60
80
100
120
140
160
180
200
Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05 Oct-05 Nov-05 Dec-05 Jan-06 Feb-06
Mu
Monthwise STOA Export by KSEB in 2005-06
86
57
40
173
4146
126 126
0
20
40
60
80
100
120
140
160
180
200
Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05 Oct-05 Nov-05 Dec-05 Jan-06 Feb-06
Mu
Monthwise STOA Export by TNEB in 2005-06
91
192
212
186
134
0
50
100
150
200
250
Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05 Oct-05 Nov-05 Dec-05 Jan-06 Feb-06
Mu
Constituentwise STOA (Export) for 2005-2006
0
50
100
150
200
250
300
350
400
Apr-0
5
Apr-0
5
May
-05
May
-05
May
-05
Jun-
05
Jun-
05
Jul-0
5
Jul-0
5
Aug-0
5
Aug-0
5
Sep-0
5
Sep-0
5
Oct-05
Oct-05
Oct-05
Nov-0
5
Nov-0
5
Dec-0
5
Dec-0
5
Jan-
06
Jan-
06
Mu
AP
KPTCL
KSEB
TNEB
Back
STOA CASE - 1
WBSEB to AJMER (Rajasthan)
20 MW for 27 days from 0000 to 1700 hrs. and 2300 to 2400 hrs.
WBSEB - AJMER WHEEL THROUGH SR (0000 HRS – 1700 HRS AND 2300-2400 HRS) 20 MW
FROM 05.01.05 to 31.01.05
INJECTING UTILITY WBSEB
CUSTOMER: NVVNL
DRAWEE UTILITY AJMER (DISCOM)
INTERVENING REGION SR & WR
CAPACITY APPROVED 20 MW
DAILY PERIOD 0000-1700 & 2300-2400 hrs
DATE OF COMMENCEMENT 05-01-05DATE OF EXPIRY 31-01-05…
INTERVENING REGIONAL LINK
ER-SR
SR-WR
WR-NR
WB
SR
HVDC BACK TO BACK AT GAZUWAKA IN SR
ER
NR
WR
RAJASTHAN
AJMER
HVDC BACK TO BACK AT BHADRWATHI IN WR
HVDC BACK TO BACK AT VINDHYACHAL IN WR
TRADER: NVVNL
INTERVENING STATE TRANSMISSION UTILITY RRVPN
WBSEB - AJMER WHEEL THROUGH SR (0000 HRS – 1700 HRS AND 2300-2400 HRS) 20 MW FROM
05.01.05 to 31.01.05 EXPORT AT WB 20 MW
AT ER-SR PERIPHERY 19.4 MW
AJMER RECIEVES 17.1 MW
LOSSES IN ER 3%
LOSSES IN SR 3.12%
TOTAL LOSSES FOR TRANSACTION
2.9 MW…
WB
SR
HVDC BACK TO BACK AT GAZUWAKA IN SR
ER
NR
WR
RAJASTHAN
AJMER
HVDC BACK TO BACK AT BHADRWATHI IN WR
AT SR-WR PERIPHERY 18.8 MW
AT WR-NR PERIPHERY 18.1 MW
AT NR-RAJ.PERIPHERY 17.6 MW
LOSSES IN WR 4%
LOSSES IN NR 3%
LOSSES IN RAJASTHAN 3%
HVDC BACK TO BACK AT VINDHYACHAL IN WR
WBSEB - AJMER WHEEL THROUGH SR (0000 HRS – 1700 HRS AND 2300-2400 HRS) 20 MW AT
INJECTION POINT FROM 05.01.05 to 31.01.05APPLICATION PROCESSING FEE
Rs 5000 PER TRANSACTION
TRANSMISSION CHARGES PER MW PER DAY
1. Rs 313.93 FOR CTU-ER
2. Rs 1462.44 FOR ER-SR LINK
3. Rs 700.91 FOR CTU-SR
4. Rs 881.49 FOR SR-WR LINK
5. Rs 339.98 FOR CTU-WR
6. Rs 233.92 FOR WR-NR LINK
7. Rs 649.86 FOR CTU-NR
8. Rs 686.3 FOR RAJASTHANTOTAL TRANSMISSION CHARGE
PER UNIT 34.15Ps/….
SCHEDULING CHARGES PER DAY
1. Rs 3000 FOR ERLDC
2. Rs 3000 FOR SRLDC
3. Rs 3000 FOR WRLDC
4. Rs 3000 FOR NRLDC
5. Rs 3000 FOR RAJASTHAN
WB
SR
HVDC BACK TO BACK AT GAZUWAKA IN SR
ER
NR
WR
RAJASTHAN
AJMER
HVDC BACK TO BACK AT BHADRWATHI IN WR
HVDC BACK TO BACK AT VINDHYACHAL IN WR
MORE DETAILS
NEW
STOA CASE - 2
APTRANSCO to MPSEB
200 MW for 24 days from 0000 to 0500 hrs. and 2300 to 2400 hrs.
APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0500 HRS and 2300 HRS – 2400 HRS ) 200 MW
AT INJECTION POINT for 24 days i.e 08.01.05 to 31.01.05
INJECTING UTILITY APTRANSCO
CUSTOMER: NVVNL
DRAWEE UTILITY MPSEB
CAPACITY APPROVED 200 MW
DAILY PERIOD 0000-0500& 2300-2400 HRS
DATE OF COMMENCEMENT 08-01-05
DATE OF EXPIRY 31-01-05…
AP
WR GRID
MP
HVDC BACK TO BACK AT
BHADRWATHI IN WR
INTERVENING REGIONAL LINK
1. SR-WR
TRADER: NVVNL
APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0500 HRS and 2300 HRS – 2400 HRS ) 200 MW AT INJECTION POINT for 24 days i.e 08.01.05 to 31.01.05
EXPORT AT AP 200 MW
AT SR PERIPHERY 193.8 MW
MP RECIEVES 186.1 MW
LOSSES IN SR 3.12%
LOSSES IN WR 4%
TOTAL LOSSES FOR
TRANSACTION 13.9 MW…
AP
WR GRID
MP
HVDC BACK TO BACK AT
BHADRWATHI IN WR
CT
U
APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0500 HRS and 2300 HRS – 2400 HRS ) 200 MW AT INJECTION POINT for 24 days i.e 08.01.05 to 31.01.05
APPLICATION PROCESSING FEE
Rs 5000 PER TRANSACTION
MORE DETAILS
TRANSMISSION CHARGES PER MW PER DAY
1. Rs 700.91 FOR CTU-SR
2. Rs 881.49 FOR SR-WR LINK
3. Rs 339.98 FOR CTU-WRTOTAL TRANSMISSION CHARGE
PER UNIT 33Ps/.
SCHEDULING CHARGES PER DAY
1. Rs 3000 FOR SRLDC
2. Rs 3000 FOR WRLDC
AP
WR GRID
MP
HVDC BACK TO BACK AT
BHADRWATHI IN WR
NEW
Sl.No Transaction Duration Ps/unit
(Old)
Ps/unit
(New)
1 WBSEB-AJMER 18 HRS. 34.15 47.25
2 APTRANSCO-
MPSEB
6 HRS. 33.21 23.88
SUMMARY OF TRANSACTIONS WITH OLD AND NEW RATES
220 KV CHIKKODI – KOLHAPUR D/CLINE
PONDA
(Goa)
KOLHAPUR
(MAHARASHTRA)
CHIKKODI
KARNATAKA
BELGAUM
NARENDRA 220
KADRA
KAIGA
AMBEWADI
XELDEM(GOA)
NAGJHARI
KODASALLI
HUBLI
GUTTUR
M.L.PURA
NOT TO SCALE
DISTANCES EXAGERATED FOR CONVENIENCE
MAPUSA
220 KV CIRCUIT 1
400 KV CIRCUIT 2
Possible Routes : SR-WR SR-ER-WR
Radial mode of Chikkodi-Kolhapur
Interveinig State Transmission UtilityKPTCL, * MSETCL
KPTCL, MSETCL
KPTCL, MSETCL
Regional Transmission Systems / IR links SRTS, SR-WR, WRTS
SRTS, SR-ER, ERTS, ER-WR, WRTS
none
STOA Charges Analysis/Comparision
5. Indicative Breakup of various components $ : STOA charges Paise/unit 13.40 22.45 4.64Scheduling charges Paise/unit 0.5 0.7 0.3Cost of Losses Paise/unit 49.2 56.7 26.9Total charges in Paise/unit 63.12 79.82 31.84$ based on 100MW of sent out power
DETAILS
Back
CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF APTRANSCO – MPSEB OF NVVNL (200 MW)
BACK
S.NO Floor Rate Period Amount (Rs.)1 Transmission Charges Rs//MW/DayDays
CTU - SR 700.91 24 3364368
CTU - WR 339.98 24 1631904
SR - WR LINK 881.49 24 4231152
SUB TOTAL ( 1 ) 9227424
2 Scheduling and System Operation ChargesRLDC - SRLDC 3000 24 72000RLDC - WRLDC 3000 24 72000
SUB TOTAL ( 2 ) 144000
3 Handling and Service Charges
2 % of ( 1+2) 187428
4 Application Processing Fee 5000
5 Total Payment ( 1+2+3+4 ) 9563852
CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF WBSEB – AJMER(RAJASTHAN) (20 MW)
S.NO Floor Rate Period Amount (Rs.)1 Transmission Charges Rs//MW/Day Days
CTU - ER 313.93 27 169522
CTU - SR 700.91 27 378491
CTU - WR 339.98 27 183589
CTU - NR 649.86 27 350924
STU - RAJASTHAN 686.3 27 370602
ER - SR LINK 1462.44 27 789718
SR - WR LINK 881.49 27 476005
WR - NR LINK 233.32 27 125993
SUB TOTAL ( 1 ) 2844844
2 Scheduling and System Operation ChargesRLDC - ERLDC 3000 27 81000RLDC - SRLDC 3000 27 81000RLDC - WRLDC 3000 27 81000RLDC - NRLDC 3000 27 81000SLDC - RAJASTHAN 3000 27 81000
SUB TOTAL ( 2 ) 405000
3 Handling and Service Charges
2 % of ( 1+2) 64997
4 Application Processing Fee 5000
5 Total Payment ( 1+2+3+4 ) 3319841
Total Energy in MU 9.7
Rate (Paisa/Unit) 34.15BACK
CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF APTRANSCO – MPSEB OF NVVNL (200 MW)
S.NO Floor Rate Period Amount (Rs.) Floor Rate Period Block Amount (Rs.)1 Transmission Charges Rs//MW/Day Days Rs//MW/Day Days in a day
6 hrs. blkCTU - SR 700.91 24 3364368 700.91 24 2 1682184
CTU - WR 339.98 24 1631904 339.98 24 2 815952
SR - WR LINK 881.49 24 4231152 1762.98 24 2 4231152
SUB TOTAL ( 1 ) 9227424 6729288
2 Scheduling and System Operation Operating Charge ChargesRLDC - SRLDC 3000 24 72000 3000 24 72000RLDC - WRLDC 3000 24 72000 3000 24 72000
SUB TOTAL ( 2 ) 144000 144000
3 Handling and Service Charges
2 % of ( 1+2) 187428 0
4 Application Processing Fee 5000 5000
5 Total Payment ( 1+2+3+4 ) 9563852 6878288
Total Energy in MU 28.8 28.8
Rate (Paisa/Unit) 33.21 23.88
As per OLD REGULATIONS As per NEW REGULATIONS
BACK
CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF WBSEB – AJMER(RAJASTHAN) (20 MW)
As per NEW REGULATIONSS.NO Floor Rate Period Amount (Rs.) Floor Rate Period Amount (Rs.)
1 Transmission Charges Rs//MW/Day Days Rs//MW/Day Days
CTU - ER 313.93 27 169522 313.93 27 169522
CTU - SR 700.91 27 378491 700.91 27 378491
CTU - WR 339.98 27 183589 339.98 27 183589
CTU - NR 649.86 27 350924 649.86 27 350924
STU - RAJASTHAN 686.3 27 370602 686.3 27 370602
ER - SR LINK 1462.44 27 789718 2924.88 27 1579435
SR - WR LINK 881.49 27 476005 1762.98 27 952009
WR - NR LINK 233.32 27 125993 466.64 27 251986
SUB TOTAL ( 1 ) 2844844 4236559
2 Scheduling and System Operation Operating Charge ChargesRLDC - ERLDC 3000 27 81000 3000 27 81000RLDC - SRLDC 3000 27 81000 3000 27 81000RLDC - WRLDC 3000 27 81000 3000 27 81000RLDC - NRLDC 3000 27 81000 3000 27 81000SLDC - RAJASTHAN 3000 27 81000 1000 27 27000
SUB TOTAL ( 2 ) 405000 351000
3 Handling and Service Charges
2 % of ( 1+2) 64997 0
4 Application Processing Fee 5000 5000
5 Total Payment ( 1+2+3+4 ) 3319841 4592559
Total Energy in MU 9.7 9.7
Rate (Paisa/Unit) 34.15 47.25
As per OLD REGULATIONS
BACK
MERIT ORDER : UNITS BOXED UP
POWER STATION STATE CAPACITY(MW) FUELVARIABLE
COST
TATA DIESELKARNATAK
A 79 DIESEL 390
RAYALSEEMA DGPP
KARNATAKA 27 DIESEL 390
YELEHANKA DIESEL
KARNATAKA 128 DIESEL 600
THANRBHAVIKARNATAK
A 220 NAPTHA 500
SUB-TOTAL 454
BRAHAMPURAM DPP KERALA 107 DIESEL 470
BSES KERALA 157 NAPTHA 560
KASARGODE PCL KERALA 22 NAPTHA 470
KAYAMKULAM KERALA 360 NAPTHA 580
SUB-TOTAL 646
BASIN BRIDGETAMIL NADU 120 NAPTHA 863
P.P.NALLURTAMIL NADU 330 NAPTHA 550
SUB-TOTAL 450
TOTAL 1550
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UI IMPORT BY SR FROM ER ON 23-03-2005
0
100
200
300
400
500
600
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00
TIME --.
UI
IN M
W -
->
48
48.5
49
49.5
50
50.5
51
FR
RQ
UE
NC
Y I
N H
Z->
ER UI
SR FREQ
ER/WR FREQ
SR FREQUENCY
ER/WR FREQUENCY
UI IMPORT BY SR FROM WR ON 23-03-2005
-100
0
100
200
300
400
500
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00
TIME --.
UI
IN M
W -
->
48
48.5
49
49.5
50
50.5
51
FR
RQ
UE
NC
Y I
N H
Z->
WR UI
SR FREQ
ER/WR FREQ
UI IMPORT FROM WR
SR FREQUENCY
ER/WR FREQUENCY
INTER-REGIONAL IMPORTS
(During the week 21st-27th March, 05)
INTER-REGIONAL IMPORTS
(During the week 21st-27th March, 05)
INTER-REGIONAL IMPORTS
(During the week 21st-27th March, 05)
INTER-REGIONAL IMPORTS
(During the week 21st-27th March, 05)
NET GAIN TO SR CONSTITUENTS21/03/05 TO 27/03/05
DATE ER UI
RS LAKHS
WR UI
RS LAKHS
TOTAL
RS LAKHS
21/03/05 2.09 19.33 21.41
22/03/05 0.5 16.85 17.35
23/03/05 15.73 23.00 38.73
24/03/05 14.49 48.75 63.23
25/03/05 14.54 51.96 66.51
26/03/05 6.9 39.19 46.09
27/03/05 4.73 6.51 11.24
TOTAL 58.96 205.58 264.55AVERAGE/DAY 8.42 29.37 37.79AVERAGE TILL NOW
4 5.64 10.19Back
OPPORTUNISTIC UI TRADEEXPORT TO WR ON 13/05/03-14/05/03
-300
-200
-100
0
100
200
300
400
500
600
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08
49
49.2
49.4
49.6
49.8
50
50.2
50.4
50.6
50.8
51POWER EXPORT TO WR ON
UI BASIS
FREQ
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Constituent-wise STOA Import/Export Energy2004 – 05
519503
0
358
00
185
00
200
400
600
800
1000
1200
1400
1600
1800
2000
AP KPTCL KSEB TNEB
Import Export
All figures in MUs
2005 – 06
434
1717
356
808 842
3 0 00
200
400
600
800
1000
1200
1400
1600
1800
2000
AP KPTCL KSEB TNEB
Import Export
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FREQUENCY CURVE FOR 24th NOV 2005FVI = 1.26
Avg Freq = 50.22Hz
48.5
49.0
49.5
50.0
50.5
51.0
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
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KADAMPARAI GENERATION/PUMP ENERGY FROM JAN - 2003
2003 2004 2005 2006
GENERATOR MODE
PUMP MODE
GENERATOR MODE
PUMP MODE
GENERATOR MODE PUMP MODE
GENERATOR MODE
PUMP MODE
JAN 39 38 44 58 0 0 72 93
FEB 39 46 21 21 0 0
MAR 32 51 6 18 0 0
APR 35 40 26 35 0 3
MAY 37 43 41 48 30 46
JUN 29 45 55 35 45 51
JUL 47 49 50 49 79 62
AUG 54 55 55 41 50 25
SEP 36 48 30 25 41 15
OCT 26 15 0 0 47 45
NOV 23 24 0 0 64 59
DEC 49 53 0 0 70 63
TOTAL 446 507 328 330 426 369 72 93