Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Saturday, November 27, 2021 at 7:22 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
11/25/2021No OFO in Effect
11/26/2021No OFO in Effect
11/27/2021No OFO in Effect
11/28/2021No 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 4, posted 09:33 PM PT

Last updated for the Gas Day of 11/27/2021
Next update expected by 5:30 AM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf11/24/202111/25/202111/26/202111/27/202111/28/202111/29/202111/30/2021
4750
4700
4650
4600
4550
4500
4450
4400
4350 4383
4300 4335
4250 4255
420042194243 4211
4150
4100 4130
4050
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
11/27/2021
Forecast
for
11/28/2021
Forecast
for
11/29/2021
Forecast
for
11/30/2021
Beginning Inventory4130421143834335
Ending Inventory4211438343354255
Inventory Change81172-48-80
 
Upper Limit4400440044004400
Difference*
(Upper Limit - Ending Inventory)
1891765145
 
Lower Limit4000400040004000
Difference*
(Ending Inventory - Lower Limit)
211383335255

*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 4, posted 09:33 PM PT

Last updated for the Gas Day of 11/27/2021
Next update expected by 5:30 AM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
11/27/2021
Forecast
for
11/28/2021
Forecast
for
11/29/2021
Forecast
for
11/30/2021
COMPOSITE TEMPERATURE
Historical Average for current day: 52.5
5455.654.554.6
Demand
On-System Demand1,9401,9802,2002,270
Off-System Deliveries
SoCal Gas (KRS)61616161
Southwest Gas3333
Kern River GT - HDL20202020
Transmission Shrinkage29292929
Injection
PG&E Storage Injection (403 Maximum)*
Core, Market Center, and Pipeline Balancing
161000
Wild Goose Storage0000
Central Valley Storage94949494
Lodi Storage42424242
Gill Ranch Storage7310010064
TOTAL SYSTEM DEMAND2,4242,3302,5502,583
Supply
Interconnect Supply
Gas Transmission Northwest1,4981,4981,4981,498
Ruby444444444444
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 Gas401389389389
Transwestern61707070
Withdrawal
PG&E Storage Withdrawal (996 Maximum)*
Core, Market Center, and Pipeline Balancing
0002
Wild Goose Storage74747474
Central Valley Storage-0-0-0-0
Lodi Storage-0-0-0-0
Gill Ranch Storage-0-0-0-0
TOTAL SYSTEM SUPPLY2,5052,5022,5022,504
INVENTORY CHANGE
(Supply - Demand)
81172-48-80
TOTAL CUSTOMER IMBALANCE118120-100-131

*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
11/27/2021
Forecast
for
11/28/2021
Forecast
for
11/29/2021
Forecast
for
11/30/2021
Injection
PG&E Storage
Core and Market Center
8738380
Wild Goose Storage606605605605
Central Valley Storage95959595
Lodi Storage78787878
Gill Ranch Storage76767676
Pipeline Balancing Injection86000
Withdrawal
PG&E Storage
Core and Market Center
2222
Wild Goose Storage680679679679
Central Valley Storage-0-0-0-0
Lodi Storage36363636
Gill Ranch Storage12121212
Pipeline Balancing Withdrawal0000

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

Actual
for
11/24/2021
Actual
for
11/25/2021
Actual
for
11/26/2021
COMPOSITE TEMPERATURE
Historical Average for current day: 52.5
51.551.652.3
Demand
On-System Demand2,3132,0312,054
Off-System Deliveries
SoCal Gas (KRS)1659599
Southwest Gas444
Kern River GT - HDL02313
Transmission Shrinkage292929
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
10081191
Wild Goose Storage000
Central Valley Storage08968
Lodi Storage204143
Gill Ranch Storage98107107
TOTAL SYSTEM DEMAND2,7302,4992,607
Supply
Interconnect Supply
Gas Transmission Northwest1,4391,4971,479
Ruby451445445
California Production272626
SoCal Gas (KRS)-0-0-0
Kern River GT - HDL-0-0-0
Kern River GT - Daggett000
Southern Trails000
El Paso Natural Gas458407402
Transwestern336262
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
000
Wild Goose Storage2708580
Central Valley Storage-0-0-0
Lodi Storage-0-0-0
Gill Ranch Storage-0-0-0
TOTAL SYSTEM SUPPLY2,6792,5232,494
INVENTORY CHANGE
(Supply - Demand)
-5124-113
TOTAL CUSTOMER IMBALANCE669483

*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
11/24/2021
Actual
for
11/25/2021
Actual
for
11/26/2021
Injection
PG&E Storage
Core and Market Center
384242
Wild Goose Storage1,767624608
Central Valley Storage09570
Lodi Storage1077878
Gill Ranch Storage777776
Pipeline Balancing Injection10784194
Withdrawal
PG&E Storage
Core and Market Center
112
Wild Goose Storage2,040701674
Central Valley Storage-0-0-0
Lodi Storage863636
Gill Ranch Storage221212
Pipeline Balancing Withdrawal000
Balancing Gas
Imbalance Gas in Storage**3,4893,5463,579
PG&E Total Gas in Storage12,25312,39712,522

*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 5.0 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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