Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Monday, November 18, 2019 at 7:30 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
11/16/2019System Wide OFO in Effect5% Stage 1 at $ .25 /Dth High Inventory
11/17/2019No OFO in Effect
11/18/2019No OFO in Effect
11/19/2019No 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 4, posted 09:46 PM PT

Last updated for the Gas Day of 11/18/2019
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
MMcf11/15/201911/16/201911/17/201911/18/201911/19/201911/20/201911/21/2019
4750
4700
4650
4600
4550
4500
4450
4400
43504395 436743674353
4300 4332 4314
4250 4262
4200
4150
4100
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
11/18/2019
Forecast
for
11/19/2019
Forecast
for
11/20/2019
Forecast
for
11/21/2019
Beginning Inventory4332436743674353
Ending Inventory4367436743534314
Inventory Change350-14-39
 
Upper Limit4400440044004400
Difference*
(Upper Limit - Ending Inventory)
33334786
 
Lower Limit4000400040004000
Difference*
(Ending Inventory - Lower Limit)
367367353314

*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 09:46 PM PT

Last updated for the Gas Day of 11/18/2019
Next update expected by 5:30 AM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
11/18/2019
Forecast
for
11/19/2019
Forecast
for
11/20/2019
Forecast
for
11/21/2019
COMPOSITE TEMPERATURE
Historical Average for current day: 54.6
6055.655.452.4
Demand
On-System Demand2195216522552280
Off-System Deliveries
SoCal Gas (KRS)76127127127
Southwest Gas7777
Kern River GT - HDL66565656
Transmission Shrinkage30232828
Injection
PG&E Storage Injection (129 Maximum)*
Core, Market Center, and Pipeline Balancing
49494949
Wild Goose Storage10507575
Central Valley Storage2502525
Lodi Storage83000
Gill Ranch Storage0000
TOTAL SYSTEM DEMAND2636242626212646
Supply
Interconnect Supply
Gas Transmission Northwest1159106910691069
Ruby733622622622
California Production24242424
SoCal Gas (KRS)-0-0-0-0
Kern River GT - HDL-0-0-0-0
Kern River GT - Daggett0000
Southern Trails0000
El Paso Natural Gas282100282282
Transwestern339100339339
Withdrawal
PG&E Storage Withdrawal (1254 Maximum)*
Core, Market Center, and Pipeline Balancing
13047168168
Wild Goose Storage-0352-0-0
Central Valley Storage-09-0-0
Lodi Storage-0103103103
Gill Ranch Storage-0-0-0-0
TOTAL SYSTEM SUPPLY2666242626072607
INVENTORY CHANGE
(Supply - Demand)
350-14-39
TOTAL CUSTOMER IMBALANCE-93-46-137-162

*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
11/18/2019
Forecast
for
11/19/2019
Forecast
for
11/20/2019
Forecast
for
11/21/2019
Injection
PG&E Storage
Core and Market Center
439511
Wild Goose Storage4443027575
Central Valley Storage26262626
Lodi Storage199131313
Gill Ranch Storage0000
Pipeline Balancing Injection0000
Withdrawal
PG&E Storage
Core and Market Center
49934545
Wild Goose Storage33965400
Central Valley Storage23522
Lodi Storage116116116116
Gill Ranch Storage-0-0-0-0
Pipeline Balancing Withdrawal7507575

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

Actual
for
11/15/2019
Actual
for
11/16/2019
Actual
for
11/17/2019
COMPOSITE TEMPERATURE
Historical Average for current day: 54.6
57.656.258.7
Demand
On-System Demand217320582035
Off-System Deliveries
SoCal Gas (KRS)11211098
Southwest Gas666
Kern River GT - HDL796466
Transmission Shrinkage313030
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
6311449
Wild Goose Storage50125154
Central Valley Storage688473
Lodi Storage09283
Gill Ranch Storage000
TOTAL SYSTEM DEMAND258326822593
Supply
Interconnect Supply
Gas Transmission Northwest119211661183
Ruby754730747
California Production252626
SoCal Gas (KRS)-0-0-0
Kern River GT - HDL-0-0-0
Kern River GT - Daggett000
Southern Trails000
El Paso Natural Gas318313288
Transwestern318314343
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
0076
Wild Goose Storage-0-0-0
Central Valley Storage-0-0-0
Lodi Storage71-0-0
Gill Ranch Storage-0-0-0
TOTAL SYSTEM SUPPLY267925492663
INVENTORY CHANGE
(Supply - Demand)
96-13370
TOTAL CUSTOMER IMBALANCE242-73-10

*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
11/15/2019
Actual
for
11/16/2019
Actual
for
11/17/2019
Injection
PG&E Storage
Core and Market Center
16146
Wild Goose Storage391437444
Central Valley Storage758475
Lodi Storage39210199
Gill Ranch Storage2900
Pipeline Balancing Injection78740
Withdrawal
PG&E Storage
Core and Market Center
454444
Wild Goose Storage384286285
Central Valley Storage722
Lodi Storage117117117
Gill Ranch Storage-0-0-0
Pipeline Balancing Withdrawal0029
Balancing Gas
Imbalance Gas in Storage**919862853
PG&E Total Gas in Storage795467961079723

*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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