Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Thursday, October 17, 2019 at 7:30 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
10/15/2019System Wide OFO in Effect8% Stage 1 at $ .25 /Dth Low Inventory
10/16/2019No OFO in Effect
10/17/2019No OFO in Effect
10/18/2019No 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 2, posted 01:06 PM PT

Last updated for the Gas Day of 10/17/2019
Next update expected by 4:30 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf10/14/201910/15/201910/16/201910/17/201910/18/201910/19/201910/20/2019
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300 4334
4250 4262
4200 4236
4150 41644159
4100 4133
40504093
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
10/17/2019
Forecast
for
10/18/2019
Forecast
for
10/19/2019
Forecast
for
10/20/2019
Beginning Inventory4164415942364262
Ending Inventory4159423642624334
Inventory Change-5772672
 
Upper Limit4400440044004400
Difference*
(Upper Limit - Ending Inventory)
24116413866
 
Lower Limit4000400040004000
Difference*
(Ending Inventory - Lower Limit)
159236262334

*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 8:00 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 2, posted 01:06 PM PT

Last updated for the Gas Day of 10/17/2019
Next update expected by 4:30 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
10/17/2019
Forecast
for
10/18/2019
Forecast
for
10/19/2019
Forecast
for
10/20/2019
COMPOSITE TEMPERATURE
Historical Average for current day: 63.4
59.558.76061.9
Demand
On-System Demand2070200017551710
Off-System Deliveries
SoCal Gas (KRS)261242242242
Southwest Gas6666
Kern River GT - HDL34666
Transmission Shrinkage23232323
Injection
PG&E Storage Injection (370 Maximum)*
Core, Market Center, and Pipeline Balancing
00184184
Wild Goose Storage0000
Central Valley Storage47000
Lodi Storage0000
Gill Ranch Storage0000
TOTAL SYSTEM DEMAND2441227822172172
Supply
Interconnect Supply
Gas Transmission Northwest999101210121012
Ruby453438438438
California Production26262626
SoCal Gas (KRS)-0-0-0-0
Kern River GT - HDL-0-0-0-0
Kern River GT - Daggett0000
Southern Trails0000
El Paso Natural Gas422410410410
Transwestern179240240240
Withdrawal
PG&E Storage Withdrawal (1330 Maximum)*
Core, Market Center, and Pipeline Balancing
753200
Wild Goose Storage112-0-0-0
Central Valley Storage-0111
Lodi Storage59424242
Gill Ranch Storage1101547575
TOTAL SYSTEM SUPPLY2436235422432243
INVENTORY CHANGE
(Supply - Demand)
-5772672
TOTAL CUSTOMER IMBALANCE4312470115

*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
10/17/2019
Forecast
for
10/18/2019
Forecast
for
10/19/2019
Forecast
for
10/20/2019
Injection
PG&E Storage
Core and Market Center
163163238238
Wild Goose Storage434000
Central Valley Storage51333
Lodi Storage6212121
Gill Ranch Storage79666666
Pipeline Balancing Injection75757575
Withdrawal
PG&E Storage
Core and Market Center
392349129129
Wild Goose Storage546000
Central Valley Storage4444
Lodi Storage66636363
Gill Ranch Storage108139139139
Pipeline Balancing Withdrawal0000

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

Actual
for
10/14/2019
Actual
for
10/15/2019
Actual
for
10/16/2019
COMPOSITE TEMPERATURE
Historical Average for current day: 63.4
59.659.461.9
Demand
On-System Demand213522122195
Off-System Deliveries
SoCal Gas (KRS)261277310
Southwest Gas566
Kern River GT - HDL010033
Transmission Shrinkage242224
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
000
Wild Goose Storage2500
Central Valley Storage000
Lodi Storage12200
Gill Ranch Storage000
TOTAL SYSTEM DEMAND257326172567
Supply
Interconnect Supply
Gas Transmission Northwest984997978
Ruby483417490
California Production252425
SoCal Gas (KRS)0-0-0
Kern River GT - HDL48-0-0
Kern River GT - Daggett000
Southern Trails000
El Paso Natural Gas358372387
Transwestern286280263
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
561058
Wild Goose Storage0225215
Central Valley Storage2691
Lodi Storage08925
Gill Ranch Storage155172157
TOTAL SYSTEM SUPPLY239726572598
INVENTORY CHANGE
(Supply - Demand)
-1764031
TOTAL CUSTOMER IMBALANCE-24312574

*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
10/14/2019
Actual
for
10/15/2019
Actual
for
10/16/2019
Injection
PG&E Storage
Core and Market Center
216225212
Wild Goose Storage432341420
Central Valley Storage333
Lodi Storage185758
Gill Ranch Storage686868
Pipeline Balancing Injection0530
Withdrawal
PG&E Storage
Core and Market Center
271360345
Wild Goose Storage413574626
Central Valley Storage4714
Lodi Storage639589
Gill Ranch Storage150164165
Pipeline Balancing Withdrawal7606
Balancing Gas
Imbalance Gas in Storage**6890976
PG&E Total Gas in Storage808138068280601

*Until yesterday's final figures are released, all numbers (expressed in MMcf/d) 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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