Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Wednesday, February 20, 2019 at 7:16 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
2/18/2019No OFO in Effect
2/19/2019System Wide OFO in Effect3% Stage 4 at $ 25.00 /Dth Low Inventory
2/20/2019System Wide OFO in Effect5% Stage 4 at $ 25.00 /Dth Low Inventory
2/21/2019No 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 3, posted 06:26 PM PT

Last updated for the Gas Day of 02/20/2019
Next update expected by 11:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf2/17/20192/18/20192/19/20192/20/20192/21/20192/22/20192/23/2019
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300
4250 42614284
4200 4207
4150 4153
4100 4113
40504088
4000 4043
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
2/20/2019
Forecast
for
2/21/2019
Forecast
for
2/22/2019
Forecast
for
2/23/2019
Beginning Inventory4153426142844207
Ending Inventory4261428442074113
Inventory Change10823-77-94
 
Upper Limit4350435043504350
Difference*
(Upper Limit - Ending Inventory)
8966143237
 
Lower Limit4000400040004000
Difference*
(Ending Inventory - Lower Limit)
261284207113

*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 3, posted 06:26 PM PT

Last updated for the Gas Day of 02/20/2019
Next update expected by 11:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
2/20/2019
Forecast
for
2/21/2019
Forecast
for
2/22/2019
Forecast
for
2/23/2019
COMPOSITE TEMPERATURE
Historical Average for current day: 51.9
46.745.845.648.7
Demand
On-System Demand3300339031702795
Off-System Deliveries
SoCal Gas (KRS)50658888
Southwest Gas13131313
Kern River GT - HDL81888888
Transmission Shrinkage23232525
Injection
PG&E Storage Injection (189 Maximum)*
Core, Market Center, and Pipeline Balancing
0000
Wild Goose Storage0000
Central Valley Storage0000
Lodi Storage0000
Gill Ranch Storage0000
TOTAL SYSTEM DEMAND3467357933843009
Supply
Interconnect Supply
Gas Transmission Northwest1028100110011001
Ruby644618618618
California Production28282828
SoCal Gas (KRS)-0-0-0-0
Kern River GT - HDL-0-0-0-0
Kern River GT - Daggett0111
Southern Trails0000
El Paso Natural Gas197171284284
Transwestern184228317317
Withdrawal
PG&E Storage Withdrawal (844 Maximum)*
Core, Market Center, and Pipeline Balancing
723784519327
Wild Goose Storage484544300100
Central Valley Storage62475858
Lodi Storage196172172172
Gill Ranch Storage28777
TOTAL SYSTEM SUPPLY3574360233072915
INVENTORY CHANGE
(Supply - Demand)
10823-77-94
TOTAL CUSTOMER IMBALANCE160-1-99-116

*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
2/20/2019
Forecast
for
2/21/2019
Forecast
for
2/22/2019
Forecast
for
2/23/2019
Injection
PG&E Storage
Core and Market Center
151146146146
Wild Goose Storage2089000
Central Valley Storage55604545
Lodi Storage67656565
Gill Ranch Storage21313131
Pipeline Balancing Injection75000
Withdrawal
PG&E Storage
Core and Market Center
971931666473
Wild Goose Storage692634300100
Central Valley Storage117107104104
Lodi Storage262238238238
Gill Ranch Storage29393939
Pipeline Balancing Withdrawal0000

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

Actual
for
2/17/2019
Actual
for
2/18/2019
Actual
for
2/19/2019
COMPOSITE TEMPERATURE
Historical Average for current day: 51.9
43.844.848
Demand
On-System Demand304833393294
Off-System Deliveries
SoCal Gas (KRS)706386
Southwest Gas131213
Kern River GT - HDL6869100
Transmission Shrinkage242321
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
000
Wild Goose Storage000
Central Valley Storage000
Lodi Storage000
Gill Ranch Storage000
TOTAL SYSTEM DEMAND322335063514
Supply
Interconnect Supply
Gas Transmission Northwest935934937
Ruby614580613
California Production302927
SoCal Gas (KRS)-0-0-0
Kern River GT - HDL-0-0-0
Kern River GT - Daggett000
Southern Trails000
El Paso Natural Gas348282211
Transwestern342305210
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
269551712
Wild Goose Storage520595615
Central Valley Storage616960
Lodi Storage1993208
Gill Ranch Storage302329
TOTAL SYSTEM SUPPLY316834613624
INVENTORY CHANGE
(Supply - Demand)
-55-45110
TOTAL CUSTOMER IMBALANCE-102-223289

*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
2/17/2019
Actual
for
2/18/2019
Actual
for
2/19/2019
Injection
PG&E Storage
Core and Market Center
149143130
Wild Goose Storage20713291
Central Valley Storage444055
Lodi Storage1366565
Gill Ranch Storage313131
Pipeline Balancing Injection0087
Withdrawal
PG&E Storage
Core and Market Center
435485951
Wild Goose Storage717729730
Central Valley Storage106110116
Lodi Storage157157272
Gill Ranch Storage353340
Pipeline Balancing Withdrawal52310
Balancing Gas
Imbalance Gas in Storage**-283-496-408
PG&E Total Gas in Storage445354420343630

*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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