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ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 1 OF 34
OPERATIONS MONTHLY REPORT
November 2004
Kent Saathoff, Director ERCOT System Operations
Joel Mickey, Manager Market Operations Support
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 2 OF 34
Acronyms............................................................................................................................................................................3
Grid Operation ...................................................................................................................................................................4 Daily Peak Demand ........................................................................................................................................................................................5 13 Month Review of Peak Demand ...............................................................................................................................................................5 Trend of Temperature in Five Congestion Management Zones...................................................................................................................6 Relative Activity Capacity Purchases – OOMC & RMR.............................................................................................................................6 Total Number of Days of Local Congestion Management...........................................................................................................................7 Instances of CSC Congestion .........................................................................................................................................................................8 Notable Events.................................................................................................................................................................................................9
Market Operation ............................................................................................................................................................11 Ancillary Services .....................................................................................................................................................................11
Average Hourly Procurement by Ancillary Service....................................................................................................................................12 13 Month Review of Average Hourly Procurement by Ancillary Service ................................................................................................12 Average MCPC by Ancillary Service..........................................................................................................................................................13 13 Month Review of Average MCPC by Ancillary Service.......................................................................................................................13 Average Deployment by Ancillary Service .................................................................................................................................................14 13 Month Review of Average Deployment by Ancillary Service..............................................................................................................14
Balancing Energy......................................................................................................................................................................15 Average Balancing Energy Deployed ................................................................................................................................15
Average UBES Deployment in Five Zones.................................................................................................................................................16 Average DBES Deployment in Five Zones.................................................................................................................................................16 13 Month Review of UBES Deployment ....................................................................................................................................................17 13 Month Review of DBES Deployment ....................................................................................................................................................17
% of Total ERCOT Energy Requirement ...........................................................................................................................18 Average BES Deployed: as A Percentage of Total Energy Requirement..................................................................................................19 13 Month Review of Average BES Deployed: as A Percentage of Total Energy Requirement ..............................................................19
Average MCPE ...........................................................................................................................................................................20 Average MCPE in Five Zones......................................................................................................................................................................21 Average MCPE at Each Interval for Five Zones.........................................................................................................................................21 13 Month Review of MCPE.........................................................................................................................................................................22 Trend of Average Fuel Index........................................................................................................................................................................22
Average Shadow Price ............................................................................................................................................................23 Average Shadow Price..................................................................................................................................................................................24 13 Month Review of Average Shadow Price...............................................................................................................................................24
Cost Summary.................................................................................................................................................................25 Ancillary Service Capacity Cost...................................................................................................................................................................26 13 Month Review of Ancillary Service Capacity Cost ...............................................................................................................................26 Ancillary Service Deployment Cost.............................................................................................................................................................27 13 Month Review of Ancillary Service Deployment Cost .........................................................................................................................27 OOMC Cost At Final....................................................................................................................................................................................28 13 Month Review of OOMC Cost At Final Settlement and True Up........................................................................................................28 RMR Cost (Initial Settlement)......................................................................................................................................................................29 RMR Net Cost (Initial Settlement)...............................................................................................................................................................29 Verified Actual RMR Cost* .........................................................................................................................................................................30 Total Local Congestion Costs by Area.........................................................................................................................................................31 Total Local Congestion Costs by Instruction Type (in Million $)..............................................................................................................31 Local Congestion Cost for Energy ...............................................................................................................................................................32 Cost Summary...............................................................................................................................................................................................33 13 Month Review of Cost Summary............................................................................................................................................................33
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 3 OF 34
Acronyms
AS Ancillary Service
BES Balancing Energy Service
DBES Down Balancing Energy Service
DRS Down Regulation Service
LBE Local Balancing Energy
MCPC Market Clearing Price for Capacity
MCPE Market Clearing Price for Energy
NSRS Non-Spinning Reserve Service
OOMC Out of Merit Capacity
OOME Out of Merit Energy
QSE Qualified Scheduling Entity
RMR Reliability Must Run
RPRS Replacement Reserve Service
RRS Responsive Reserve Service
UBES Up Balancing Energy Service
URS Up Regulation Service
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 4 OF 34
Grid Operation
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 5 OF 34
Daily Peak Demand
0
5000
10000
15000
20000
25000
30000
35000
40000
11/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
MW
Peak Demand for the Month: 11/30/04 20:30 37599
13 Month Review of Peak Demand
0
10000
20000
30000
40000
50000
60000
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
MW
Note: Peak Demand is Peak Interval Demand
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 6 OF 34
Trend of Temperature in Five Congestion Management Zones
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
11/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
Houston North South West NorthEast
Relative Activity Capacity Purchases – OOMC & RMR
36
53
40
30 30 29
44
0
10
20
30
40
50
60
Eas
t Rio
Gra
nde
Lare
do A
rea
Cor
pus
Chr
isti
Are
a
Abi
lene
Are
a
Wes
t Rio
Gra
nde
DFW
Bry
an A
rea
San
Ang
elo
Are
a
San
Ant
onio
Nor
thea
st
Uni
t-Day
s*
OOMC RMR
Note: 1 Unit-Day = 1 unit procured during any time period within one trade day.
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
Total Number of Days of Local Congestion Management
14
13
8
4 4 4
3 3 3
2 2 2
0
2
4
6
8
10
12
14
16H
eigh
ts -
PH R
obin
son
SMI -
McQ
ueen
ey
Polk
- H
all A
cres
Wes
laco
- N
Wes
laco
Ble
ssin
g - L
olita
Trin
idad
TR
6H
Spun
ky -
Hoo
d
Jew
et -
Wat
sons
Cha
pel
Win
ches
ter -
Faye
ttevi
lle
Ash
erto
n - W
est
Con
oco
Der
bys
- Pea
rsal
l
Phar
r - P
harr
MVE
C
Day
s
Contingency Congestion Element Number of Days Heights Sub - Freeway Park Heights - PH Robinson 14 Clear Springs - Marion/Zorn SMI - McQueeney 13
N Edinburg - Bates Polk - Hall Acres 7 Big Brown - Richland Chambers Trinidad TR 6H 4
N Edinburg - Rio Hondo Weslaco - N Weslaco 4 STP - Skyline/Hill Country Blessing - Lolita 4
Austrop - Lost Pines Winchester - Fayetteville 3 Spunky - Hood 3
Duke - N Edinburg Pharr - Pharr MVEC 2 Steephollow - Gibbons Creek Jewet - Watsons Chapel 2
Uvalde - Hamilton Asherton - West Conoco 2
Note: 1 day= nits procured during any time period within one trade day. Total numbers of 1 day or less of local congestion management arenot shown in the
ugraph. Occurrences of 1 day or less are not listed in table but are totaled in graph.
PAGE 7 OF 34
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 8 OF 34
Instances of CSC Congestion
0
2
4
6
8
10
12
14
16
18
2011
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
EN SN NH SH WN
Num
ber o
f int
erva
ls
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 9 OF 34
Notable Events
New Procedures/ Forms/ Operations Bulletins
11/1/04 Ercot Power Operations Bulletin 118 DC Ties V1R5 – CN#165
11/2/04 Ercot Power Operations Bulletin 119 Shift Supervisor V3R11 – CN #164
11/4/04 Ercot Power Operations Bulletin 120 Temporary Change – Transmission & Security Desk CN# 166
Security Alert Stage/ Threatcon/ Related issues
None
EECP Occurrence
None
Major Weather Related Power System Problems
None Major system Voltage problems
11/8 -11/9 Fluctuating 138 kV voltages observed in the McCamey area during increased wind farm generation. Significant Communication Problems
11/19/04 16:30 – 19:00 Lost Hot Line communications with a QSE
11/26/04 03:00 Held interval due to an incorrect offset entered
11/29/04 15:00 Extended the Ancillary Service Market until 17:00 Major Computer System Problems/Fixes
None Load Shed incidences
11/24/2004 Approximately 150 MW of distribution load lost due to storm New SPS & RAP’s
None
OCN, Advisory, Alert, Emergency Notice and Major Disturbances
11/1/04 12:00-21:00 Transmission Alert. Loss of Bates U1 loads Bates Tr.
11/1/04 13:00-21:00 Transmission Alert. Loss of Rio Hondo Tr. loads Rio Hondo-La Palma
11/1/04 -11/4/04 Transmission Alert. Loss of Highway 9 Tr. Loads Koch Up River-Valero
11/10/04 08:00-15:00 OCN issued for notification of winter preparedness drill
11/22/04 16:45-17:45 Transmission Alert. Loss of Dilley Sw-San Miguel loads Derby-Pearsall
11/25/04 03:45-16:50 OCN issued to request QSE’s to update load forecast & resource plans for HE 10:00 and 11:00
11/26/04 16:50-18:00 Transmission Alert. Loss of N Edinburg-Bates loads McColl Rd-N McAllen
11/29/04 19:00-22:45 Transmission Alert. Loss of Denton-W Denton loads Sanger-Spring
11/29/04 19:00-22:00 Transmission Alert. Loss of Military Park Tr. #2 loads Military Park Tr. #1
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 10 OF 34
Update on New Generation
None
Max / Min Temperature
Max: 85.6˚F SW Min: 28.5˚F FW
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 11 OF 34
Market Operation Ancillary Services
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 12 OF 34
Average Hourly Procurement by Ancillary Service
0
200
400
600
800
1000
120011
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
DRS URS RRS NSRS
M W
13 Month Review of Average Hourly Procurement by Ancillary Service
0
200
400
600
800
1000
1200
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
DRS URS RRS NSRS
M W
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 13 OF 34
Average MCPC by Ancillary Service
$0
$5
$10
$15
$20
$25
$30
$3511
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
DRS URS RRS NSRS
$/M
W
13 Month Review of Average MCPC by Ancillary Service
$0
$2
$4
$6
$8
$10
$12
$14
$16
$18
$20
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
DRS URS RRS NSRS
$/M
W
≈ 62.28
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 14 OF 34
Average Deployment by Ancillary Service
0
50
100
150
200
25011
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
DRS URS RRS NSRS
M W
13 Month Review of Average Deployment by Ancillary Service
0
20
40
60
80
100
120
140
160
180
200
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
DRS URS RRS NSRS
M W
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 15 OF 34
Balancing Energy Average Balancing Energy Deployed
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 16 OF 34
Average UBES Deployment in Five Zones
0
100
200
300
400
500
600
700
800
90011
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
UBES_H UBES_N UBES_SUBES_W UBES_NE
M W
Average DBES Deployment in Five Zones
0
50
100
150
200
250
300
350
400
450
11/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
DBES_H DBES_N DBES_SDBES_W DBES_NE
MW
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 17 OF 34
13 Month Review of UBES Deployment
0
100
200
300
400
500
600
700
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
UBES_H UBES_N UBES_SUBES_W UBES_NE
MW
13 Month Review of DBES Deployment
0
100
200
300
400
500
600
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
DBES_H DBES_N DBES_SDBES_W DBES_NE
MW
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 18 OF 34
Balancing Energy % of Total ERCOT Energy Requirement
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 19 OF 34
Average BES Deployed: as A Percentage of Total Energy Requirement
0%
1%
2%
3%
4%
5%
6%
7%
8%11
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
UBES % DBES %
13 Month Review of Average BES Deployed: as A Percentage of Total Energy Requirement
0%
1%
2%
3%
4%
5%
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
UBES DBES
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 20 OF 34
Balancing Energy Average MCPE
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 21 OF 34
Average MCPE in Five Zones
0
20
40
60
80
100
12011
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
MCPE_H MCPE_N MCPE_SMCPE_W MCPE_NE
$/M
W
Average MCPE at Each Interval for Five Zones
0
20
40
60
80
100
120
140
160
180
0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96
MCPE_H MCPE_N MCPE_SMCPE_W MCPE_NE
Interval
$/M
W
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 22 OF 34
13 Month Review of MCPE
0
10
20
30
40
50
60
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
MCPE_H MCPE_N MCPE_SMCPE_W MCPE_NE
$/M
W
Trend of Average Fuel Index
0
1
2
3
4
5
6
7
Nov Dec Jan Feb Feb Mar Apr May Jun Jul Jul Aug Sep Oct Nov
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 23 OF 34
Balancing Energy Average Shadow Price
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 24 OF 34
Average Shadow Price
0
2
4
6
8
10
12
14
1611
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
EN NH SH SN WN
$/M
W
13 Month Review of Average Shadow Price
0
1
2
3
4
5
6
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
EN NH SH SN WN
$/M
W
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 25 OF 34
Cost Summary
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 26 OF 34
Ancillary Service Capacity Cost
$-
$0.2
$0.4
$0.6
$0.8
$1.0
$1.2
$1.4
$1.6
$1.8
$2.0
11/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
Total: $43.12 Million
Mill
ions
$
DRS URS RRS NSRS
13 Month Review of Ancillary Service Capacity Cost
$-
$5.0
$10.0
$15.0
$20.0
$25.0
$30.0
$35.0
$40.0
$45.0
Nov
Dec Jan
Feb
Mar
Apr
May
Jun
Jul
Aug Sep
Oct
Nov
Mill
ions
$
DRS URS RRS NSRS
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 27 OF 34
Ancillary Service Deployment Cost
$(0.5)
$(0.4)
$(0.3)
$(0.2)
$(0.1)
$-
$0.1
$0.2
$0.3
$0.4
11/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
Total w DRS: $-0.22 Million Total w/o DRS: $4.66 Million
Mill
ion
$
DRS URS RRS NSRS
13 Month Review of Ancillary Service Deployment Cost
$(8.0)
$(6.0)
$(4.0)
$(2.0)
$-
$2.0
$4.0
$6.0
$8.0
Nov
Dec Jan
Feb
Mar
Apr
May
Jun
Jul
Aug Sep
Oct
Nov
Mill
ions
$
DRS URS RRS NSRS
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 28 OF 34
OOMC Cost At Final
0.0
0.1
0.211
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
Start-Up Payment (Total: $.25 Million)
Total OOMC Payment (Total: $.50 Million)
Mill
ion
$
13 Month Review of OOMC Cost At Final Settlement and True Up
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Nov
Dec Jan
Feb
Mar
Apr
May Jun
Jul
Aug
Sep
Oct
Nov
Total OOMC Payment (Total: $87.02 Million)
Mill
ion
$
Up to date as of 1/1/2005
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 29 OF 34
RMR Cost (Initial Settlement)
-30
-20
-10
0
10
20
30
40
50
Jan-
04
Feb-
04
Mar
-04
Apr
-04
May
-04
Jun-
04
Jul-0
4
Aug
-04
Sep-
04
Oct
-04
Nov
-04
Mill
ion
$
RMR Payments BENA Credit RMR Net Costs
RMR Net Cost: $104.66
RMR Net Cost (Initial Settlement)
Total Net Cost $6.12 Million
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
11/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
Mill
ions
$
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 30 OF 34
Verified Actual RMR Cost*
-30
-20
-10
0
10
20
30
40
50Ja
n-04
Feb-
04
Mar
-04
Apr
-04
May
-04
Jun-
04
Jul-0
4
Aug
-04
Sep-
04
Oct
-04
Nov
-04
Mill
ion
$
RMR Payments BENA Credit RMR Net Costs
RMR Net Cost: $110.36
*Note: 1. Trade dates 1/1/04 thru 10/26/04 complete with Final Resettlement data, using verifiable actual cost data provided by
the RMR Unit owner. 2. Trade date 10/27/04 thru 11/30/04 complete with Initial Resettlement data, using estimated eligible costs.
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 31 OF 34
Total Local Congestion Costs by Area
Austin $0.10
Corpus $0.00
Houston $0.27
San Antonio$0.39
South $0.73
Valley $0.72
West $0.30
Wind $0.02
DFW $0.27
North $0.45
Total: $3.25 Million
Mill
ion
$
Total Local Congestion Costs by Instruction Type (in Million $)
$1.32
$0.12
$1.25
$0.50
$0.00
$0.04
LBE-operate at or below a level
LBE-operate at or above a level
LBE-hold at a level
Manual OOME DN
Manual OOME UP
OOMC
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 32 OF 34
Local Congestion Cost for Energy
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.811
/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
Total $2.7 Million
Mill
ion
$
DN Payment for Aggregated Units for Both Manual and LBE Deployment
UP Payment for Aggregated Units for Both Manual and LBE Deployment DN Payment for LBE Deployment without Market Solution
UP Payment for LBE Deployment without Market Solution
DN Payment for Manual OOME Deployment
UP Payment for Manual OOME Deployment
DN Payment for LBE Deployment with Market Solution UP Payment for LBE Deployment with Market Solution
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 33 OF 34
Cost Summary (Total w DBES: $86.74 Total w/0 DBES: $99.43)
-2
-1
0
1
2
3
4
5
6
7
11/1
11/2
11/3
11/4
11/5
11/6
11/7
11/8
11/9
11/1
0
11/1
1
11/1
2
11/1
3
11/1
4
11/1
5
11/1
6
11/1
7
11/1
8
11/1
9
11/2
0
11/2
1
11/2
2
11/2
3
11/2
4
11/2
5
11/2
6
11/2
7
11/2
8
11/2
9
11/3
0
Mill
ions
$
DBES UBES LBES/OOMEOOMC RMR A/S
13 Month Review of Cost Summary
0
20
40
60
80
100
120
140
Nov
Dec Jan
Feb
Mar
Apr
May
Jun
Jul
Aug Sep
Oct
Nov
Mill
ions
$
Total with DBES (Total: $855.22 Million)
Total Without DBES (Total: $1088.75 Million)
ERCOT OPERATIONS MONTHLY REPORT – NOVEMBER 2004
PAGE 34 OF 34
Note: 1. DBES cost is a credit to system costs and therefore is shown as a negative number here to differentiate it from the other types of Reliability Costs. 2. BES deployment costs include two parts: the cost for Power Balance and the cost for CSC Congestion. Due to Relaxed Balanced Schedule, the cost paid for Power Balance covers both the difference between ERCOT load forecast and QSE's schedule and the difference between QSE's Relaxed scheduled load and the load it would schedule should RBS were not allowed. The cost for Power Balance is not further divided accordingly because currently we do not have a way to differentiate these two types of Power Balance costs.
Please contact Shuye Teng at 512-248-3998 or email at [email protected] should you have any questions.
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