Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Saturday, December 2, 2023 at 7:22 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
11/30/2023No OFO in Effect
12/1/2023No OFO in Effect
12/2/2023No OFO in Effect
12/3/2023No 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 1, posted 08:43 AM PT

Last updated for the Gas Day of 12/02/2023
Next update expected by 1:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf11/29/202311/30/202312/1/202312/2/202312/3/202312/4/202312/5/2023
4750
4700
4650
4600
4550
4500
4450
4400
4350 4396
4300 4348
42504287 4299
4200 4245 4244
4150
4100 4132
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
12/2/2023		Forecast
for
12/3/2023		Forecast
for
12/4/2023		Forecast
for
12/5/2023
Beginning Inventory4132424443964348
Ending Inventory4244439643484299
Inventory Change112152-48-49
 
Upper Limit4400440044004400
Difference*
(Upper Limit - Ending Inventory)		156452101
 
Lower Limit4000400040004000
Difference*
(Ending Inventory - Lower Limit)		244396348299

*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 1, posted 08:43 AM PT

Last updated for the Gas Day of 12/02/2023
Next update expected by 1:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
12/2/2023		Forecast
for
12/3/2023		Forecast
for
12/4/2023		Forecast
for
12/5/2023
COMPOSITE TEMPERATURE
Historical Average for current day: 51.4		55.155.655.456.5
Demand
On-System Demand2280233025302530
Off-System Deliveries
SoCal Gas (KRS)79797979
Southwest Gas9999
Kern River GT - HDL0000
Transmission Shrinkage31303030
Injection
PG&E Storage Injection (194 Maximum)*
Core, Market Center, and Pipeline Balancing		119000
Wild Goose Storage0000
Central Valley Storage0000
Lodi Storage0000
Gill Ranch Storage0000
TOTAL SYSTEM DEMAND2519244926492649
Supply
Interconnect Supply
Gas Transmission Northwest1344127012701270
Ruby422422422422
California Production18181818
SoCal Gas (KRS)-0-0-0-0
Kern River GT - HDL-0-0-0-0
Kern River GT - Daggett12121212
Southern Trails0000
El Paso Natural Gas456456456456
Transwestern152152152152
Withdrawal
PG&E Storage Withdrawal (798 Maximum)*
Core, Market Center, and Pipeline Balancing		1111
Wild Goose Storage70707070
Central Valley Storage34343434
Lodi Storage69696969
Gill Ranch Storage53969696
TOTAL SYSTEM SUPPLY2631260026002600
INVENTORY CHANGE
(Supply - Demand)		112152-48-49
TOTAL CUSTOMER IMBALANCE270111-89-88

*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
12/2/2023		Forecast
for
12/3/2023		Forecast
for
12/4/2023		Forecast
for
12/5/2023
Injection
PG&E Storage
Core and Market Center		28282828
Wild Goose Storage620620620620
Central Valley Storage0000
Lodi Storage55555555
Gill Ranch Storage7777
Pipeline Balancing Injection200000
Withdrawal
PG&E Storage
Core and Market Center		29292929
Wild Goose Storage690690690690
Central Valley Storage34343434
Lodi Storage124124124124
Gill Ranch Storage141103103103
Pipeline Balancing Withdrawal0000

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

Actual
for
11/29/2023		Actual
for
11/30/2023		Actual
for
12/1/2023
COMPOSITE TEMPERATURE
Historical Average for current day: 51.4		51.251.553.5
Demand
On-System Demand269827632527
Off-System Deliveries
SoCal Gas (KRS)234240229
Southwest Gas339
Kern River GT - HDL791
Transmission Shrinkage292929
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing		274164
Wild Goose Storage000
Central Valley Storage1400
Lodi Storage000
Gill Ranch Storage64580
TOTAL SYSTEM DEMAND307731432860
Supply
Interconnect Supply
Gas Transmission Northwest122312491345
Ruby469500387
California Production191918
SoCal Gas (KRS)-0-0-0
Kern River GT - HDL-0-0-0
Kern River GT - Daggett0020
Southern Trails000
El Paso Natural Gas443402357
Transwestern7792115
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing		8014
Wild Goose Storage701771251
Central Valley Storage-0-034
Lodi Storage6968122
Gill Ranch Storage-0-082
TOTAL SYSTEM SUPPLY301031012747
INVENTORY CHANGE
(Supply - Demand)		-67-42-113
TOTAL CUSTOMER IMBALANCE649912

*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
11/29/2023		Actual
for
11/30/2023		Actual
for
12/1/2023
Injection
PG&E Storage
Core and Market Center		0228
Wild Goose Storage315324352
Central Valley Storage63230
Lodi Storage31230
Gill Ranch Storage35307
Pipeline Balancing Injection100122136
Withdrawal
PG&E Storage
Core and Market Center		0334
Wild Goose Storage10121095603
Central Valley Storage493034
Lodi Storage9691125
Gill Ranch Storage5153170
Pipeline Balancing Withdrawal000
Balancing Gas
Imbalance Gas in Storage**238523852293
PG&E Total Gas in Storage222822238122503

*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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