Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Monday, October 3, 2022 at 7:42 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
10/1/2022No OFO in Effect
10/2/2022No OFO in Effect
10/3/2022No OFO in Effect
10/4/2022No 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 12:53 PM PT

Last updated for the Gas Day of 10/03/2022
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
MMcf9/30/202210/1/202210/2/202210/3/202210/4/202210/5/202210/6/2022
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300
4250
4200 42424210
4150 41854164
41004124 4143
4050 4084
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
10/3/2022
Forecast
for
10/4/2022
Forecast
for
10/5/2022
Forecast
for
10/6/2022
Beginning Inventory4242421041854164
Ending Inventory4210418541644143
Inventory Change-32-25-21-21
 
Upper Limit4400440044004400
Difference*
(Upper Limit - Ending Inventory)
190215236257
 
Lower Limit4000400040004000
Difference*
(Ending Inventory - Lower Limit)
210185164143

*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 12:53 PM PT

Last updated for the Gas Day of 10/03/2022
Next update expected by 4:30 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
10/3/2022
Forecast
for
10/4/2022
Forecast
for
10/5/2022
Forecast
for
10/6/2022
COMPOSITE TEMPERATURE
Historical Average for current day: 66.7
66.267.47070.4
Demand
On-System Demand1920197019601960
Off-System Deliveries
SoCal Gas (KRS)110237237237
Southwest Gas3333
Kern River GT - HDL0000
Transmission Shrinkage30292929
Injection
PG&E Storage Injection (394 Maximum)*
Core, Market Center, and Pipeline Balancing
0000
Wild Goose Storage387137180180
Central Valley Storage7888
Lodi Storage157129129129
Gill Ranch Storage85626262
TOTAL SYSTEM DEMAND2698257526082608
Supply
Interconnect Supply
Gas Transmission Northwest1630155815581558
Ruby346317317317
California Production25252525
SoCal Gas (KRS)-0-0-0-0
Kern River GT - HDL-0-0-0-0
Kern River GT - Daggett19464646
Southern Trails0000
El Paso Natural Gas337397397397
Transwestern145115115115
Withdrawal
PG&E Storage Withdrawal (314 Maximum)*
Core, Market Center, and Pipeline Balancing
16592130130
Wild Goose Storage-0-0-0-0
Central Valley Storage-0-0-0-0
Lodi Storage-0-0-0-0
Gill Ranch Storage-0-0-0-0
TOTAL SYSTEM SUPPLY2667255025882588
INVENTORY CHANGE
(Supply - Demand)
-32-25-21-21
TOTAL CUSTOMER IMBALANCE-290-37-31-31

*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
10/3/2022
Forecast
for
10/4/2022
Forecast
for
10/5/2022
Forecast
for
10/6/2022
Injection
PG&E Storage
Core and Market Center
2871036464
Wild Goose Storage651401180180
Central Valley Storage55888
Lodi Storage279251251251
Gill Ranch Storage97707070
Pipeline Balancing Injection0000
Withdrawal
PG&E Storage
Core and Market Center
209194195195
Wild Goose Storage26326400
Central Valley Storage48-0-0-0
Lodi Storage122122122122
Gill Ranch Storage11101010
Pipeline Balancing Withdrawal247000

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

Actual
for
9/30/2022
Actual
for
10/1/2022
Actual
for
10/2/2022
COMPOSITE TEMPERATURE
Historical Average for current day: 66.7
70.666.465.9
Demand
On-System Demand173315851654
Off-System Deliveries
SoCal Gas (KRS)17610583
Southwest Gas443
Kern River GT - HDL000
Transmission Shrinkage322929
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
23510819
Wild Goose Storage421370375
Central Valley Storage02925
Lodi Storage85156158
Gill Ranch Storage408884
TOTAL SYSTEM DEMAND272624742431
Supply
Interconnect Supply
Gas Transmission Northwest161915871602
Ruby359340341
California Production252525
SoCal Gas (KRS)-0-0-0
Kern River GT - HDL4013-0
Kern River GT - Daggett02724
Southern Trails000
El Paso Natural Gas434293325
Transwestern145149146
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
00126
Wild Goose Storage-0-0-0
Central Valley Storage-0-0-0
Lodi Storage-0-0-0
Gill Ranch Storage-0-0-0
TOTAL SYSTEM SUPPLY262324342589
INVENTORY CHANGE
(Supply - Demand)
-103-40158
TOTAL CUSTOMER IMBALANCE147-65-127

*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
9/30/2022
Actual
for
10/1/2022
Actual
for
10/2/2022
Injection
PG&E Storage
Core and Market Center
127339335
Wild Goose Storage766623643
Central Valley Storage13232
Lodi Storage196275277
Gill Ranch Storage239898
Pipeline Balancing Injection22600
Withdrawal
PG&E Storage
Core and Market Center
80208209
Wild Goose Storage354252259
Central Valley Storage-0-0-0
Lodi Storage112121121
Gill Ranch Storage231111
Pipeline Balancing Withdrawal026238
Balancing Gas
Imbalance Gas in Storage**336533313209
PG&E Total Gas in Storage824985228630

*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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