Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Saturday, July 4, 2015 at 7:18 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
7/2/2015No OFO in Effect
7/3/2015No OFO in Effect
7/4/2015No OFO in Effect
7/5/2015No OFO in Effect

When an OFO or EFO has been called, customers' supplies are required to be within the tolerance requirement of daily usage to avoid noncompliance penalties. The criteria for complying with an OFO or EFO are described here.

For additional information, please contact the PG&E Scheduling Helpline at (800) 343-4743.

While updates to the OFO Outlook are posted here, customers should use INSIDEtracc as their primary source for OFO notification and updated information. For specific end-use customer information, please see INSIDEtracc.

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System Inventory Status

Plan 3, posted 04:13 PM PT

Last updated for the Gas Day of 07/04/2015
Next update expected by 11:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf7/1/20157/2/20157/3/20157/4/20157/5/20157/6/20157/7/2015
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300
4250
4200 4219
4150 4191
41004111 4133
4050 4095 40964068
4000
3950
3900
3850
3800
3750
3700
3650
3600
Within Operating Limits
Outside Operating Limits

All numbers are expressed in MMcf/day. When the forecast pipeline ending inventory exceeds the upper pipeline inventory operating limit or falls below the lower pipeline inventory operating limit, an OFO may be called to maintain the integrity and reliability of the gas transportation system.


Note: Historical data for yesterday is not available until mid-morning today.

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System Inventory Summary

Forecast
for
7/4/2015
Forecast
for
7/5/2015
Forecast
for
7/6/2015
Forecast
for
7/7/2015
Beginning Inventory4095413341914096
Ending Inventory4133419140964068
Inventory Change3858-95-28
 
Upper Limit4300430043504350
Difference*
(Upper Limit - Ending Inventory)
167109254282
 
Lower Limit3900390040004000
Difference*
(Ending Inventory - Lower Limit)
2332919668

*Forecast differences of less than 0 for the day after the current gas day (day 1) indicate that that PG&E may call an OFO to maintain pipeline integrity. Caution: This is PG&E's forecast of system inventory. Because market behavior and forecast loads can vary widely, this forecast may change significantly within the gas day and should therefore be used with caution. Forecasts further into the future are more likely to change than days closer to the current gas day e.g., the forecast for gas day 3 is subject to more change than the forecast for day 1.
All numbers are expressed in MMcf.
When an OFO has been called for the day after the current gas day (day 1), plans after the first plan of the gas day (posted by 8:30 AM) will often reflect changed market behavior and will show inventory projections within the established limits.

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PG&E Supply and Demand Forecast
(Net Physical Flows)

Plan 3, posted 04:13 PM PT

Last updated for the Gas Day of 07/04/2015
Next update expected by 11:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
7/4/2015
Forecast
for
7/5/2015
Forecast
for
7/6/2015
Forecast
for
7/7/2015
COMPOSITE TEMPERATURE
Historical Average for current day: 70
73.571.469.768.1
Demand
On-System Demand1810169019752015
Off-System Deliveries
SoCal Gas (KRS)352354354354
Southwest Gas2333
Kern River GT - HDL91898989
Transmission Shrinkage30303030
Injection
PG&E Storage Injection (372 Maximum)*
Core, Market Center, and Pipeline Balancing
231286286286
Wild Goose Storage119110
Central Valley Storage1111
Lodi Storage9111600
Gill Ranch Storage81818181
TOTAL SYSTEM DEMAND2701265828302859
Supply
Interconnect Supply
Gas Transmission Northwest1208120312031203
Ruby880868868868
California Production35353535
SoCal Gas (KRS)0000
Kern River GT - HDL0000
Kern River GT - Daggett22262626
Southern Trails77797979
El Paso Natural Gas252255255255
Transwestern265249249249
Withdrawal
PG&E Storage Withdrawal (1875 Maximum)*
Core, Market Center, and Pipeline Balancing
0000
Wild Goose Storage00096
Central Valley Storage0000
Lodi Storage001919
Gill Ranch Storage0000
TOTAL SYSTEM SUPPLY2739271627352831
INVENTORY CHANGE
(Supply - Demand)
3858-95-28
TOTAL CUSTOMER IMBALANCE150128-2443

*Maxima for injection and withdrawal apply to current day only.
Note: All numbers are expressed in MMcf/d. Differences may exist between these figures and those shown in PG&E's INSIDEtracc. This data is PG&E's best estimate using operational data.

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PG&E Storage Activity Forecast
(Scheduled Volumes)

Forecast
for
7/4/2015
Forecast
for
7/5/2015
Forecast
for
7/6/2015
Forecast
for
7/7/2015
Injection
PG&E Storage
Core and Market Center
409410458458
Wild Goose Storage2622602620
Central Valley Storage11111111
Lodi Storage9111500
Gill Ranch Storage25252525
Pipeline Balancing Injection20757575
Withdrawal
PG&E Storage
Core and Market Center
140140189188
Wild Goose Storage25125125196
Central Valley Storage10101010
Lodi Storage001919
Gill Ranch Storage3333
Pipeline Balancing Withdrawal0000

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PG&E Recent Supply and Demand Data
(Net Physical Flows)

Actual
for
7/1/2015
Actual
for
7/2/2015
Actual
for
7/3/2015
COMPOSITE TEMPERATURE
Historical Average for current day: 70
78.57373.2
Demand
On-System Demand255923482059
Off-System Deliveries
SoCal Gas (KRS)337336357
Southwest Gas222
Kern River GT - HDL839173
Transmission Shrinkage293030
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
168180229
Wild Goose Storage000
Central Valley Storage000
Lodi Storage0064
Gill Ranch Storage0067
TOTAL SYSTEM DEMAND317929862881
Supply
Interconnect Supply
Gas Transmission Northwest114611591205
Ruby883891882
California Production383838
SoCal Gas (KRS)000
Kern River GT - HDL000
Kern River GT - Daggett221522
Southern Trails787879
El Paso Natural Gas234262267
Transwestern237240263
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
000
Wild Goose Storage2902800
Central Valley Storage5300
Lodi Storage611320
Gill Ranch Storage2400
TOTAL SYSTEM SUPPLY306630942757
INVENTORY CHANGE
(Supply - Demand)
-113108-124
TOTAL CUSTOMER IMBALANCE-32202-154

*Until yesterday's final figures are released, all numbers in this column will appear as 0.
Note: All numbers are expressed in MMcf/d. Differences may exist between these figures and those shown in PG&E's INSIDEtracc. This data is PG&E's best estimate using operational data.

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PG&E Recent Storage Activity
(Scheduled Volumes)

Actual
for
7/1/2015
Actual
for
7/2/2015
Actual
for
7/3/2015
Injection
PG&E Storage
Core and Market Center
231241410
Wild Goose Storage145146268
Central Valley Storage7911
Lodi Storage110114
Gill Ranch Storage4825
Pipeline Balancing Injection767837
Withdrawal
PG&E Storage
Core and Market Center
139139159
Wild Goose Storage433424256
Central Valley Storage561010
Lodi Storage7413349
Gill Ranch Storage36123
Pipeline Balancing Withdrawal000
Balancing Gas
Imbalance Gas in Storage**303532143043
PG&E Total Gas in Storage909249109391273

*Until yesterday's final figures are released, all numbers in this column will appear as 0.
** Suspension of pipeline balancing injection or withdrawal may occur if Imbalance Gas in Storage exceeds balancing inventory limits. If Imbalance Gas in Storage is greater than 4.040 Bcf, pipeline balancing injection may not be available. If Imbalance Gas in Storage is at or below 0.0 Bcf, balancing withdrawal will not be available.
The daily change of Imbalance Gas in Storage may not equal the daily Pipeline Balancing. This is because Pipeline Balancing is the entire system balancing required for the day and Imbalance Gas in Storage is only the Cumulative Imbalance portion of the entire system imbalance gas in storage. PG&E may include the entire system imbalance gas as the Imbalance Gas in Storage sometime in the future.

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