Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Monday, February 8, 2016 at 7:17 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
2/6/2016No OFO in Effect
2/7/2016No OFO in Effect
2/8/2016No OFO in Effect
2/9/2016No 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 12:46 PM PT

Last updated for the Gas Day of 02/08/2016
Next update expected by 3:30 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf2/5/20162/6/20162/7/20162/8/20162/9/20162/10/20162/11/2016
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300
4250
4200 4215
4150
4100 4142
4050 408740854088
4000 4035
39503960
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
2/8/2016
Forecast
for
2/9/2016
Forecast
for
2/10/2016
Forecast
for
2/11/2016
Beginning Inventory4215414240874085
Ending Inventory4142408740854088
Inventory Change-73-55-23
 
Upper Limit4300430043004300
Difference*
(Upper Limit - Ending Inventory)
158213215212
 
Lower Limit3900390039003900
Difference*
(Ending Inventory - Lower Limit)
242187185188

*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 8:30 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 12:46 PM PT

Last updated for the Gas Day of 02/08/2016
Next update expected by 3:30 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
2/8/2016
Forecast
for
2/9/2016
Forecast
for
2/10/2016
Forecast
for
2/11/2016
COMPOSITE TEMPERATURE
Historical Average for current day: 50.9
57.156.856.957
Demand
On-System Demand2310236023302325
Off-System Deliveries
SoCal Gas (KRS)116727272
Southwest Gas14141414
Kern River GT - HDL0333333
Transmission Shrinkage28282828
Injection
PG&E Storage Injection (84 Maximum)*
Core, Market Center, and Pipeline Balancing
3011010
Wild Goose Storage0000
Central Valley Storage0000
Lodi Storage46131313
Gill Ranch Storage31000
TOTAL SYSTEM DEMAND2575252125002495
Supply
Interconnect Supply
Gas Transmission Northwest964101810181018
Ruby612575575575
California Production37373737
SoCal Gas (KRS)0000
Kern River GT - HDL0000
Kern River GT - Daggett10373737
Southern Trails79797979
El Paso Natural Gas269253253253
Transwestern339306339339
Withdrawal
PG&E Storage Withdrawal (350 Maximum)*
Core, Market Center, and Pipeline Balancing
0000
Wild Goose Storage172969696
Central Valley Storage20302929
Lodi Storage0000
Gill Ranch Storage0363636
TOTAL SYSTEM SUPPLY2502246624982498
INVENTORY CHANGE
(Supply - Demand)
-73-55-23
TOTAL CUSTOMER IMBALANCE8-4949

*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
2/8/2016
Forecast
for
2/9/2016
Forecast
for
2/10/2016
Forecast
for
2/11/2016
Injection
PG&E Storage
Core and Market Center
141141185185
Wild Goose Storage294287287287
Central Valley Storage37272727
Lodi Storage145919191
Gill Ranch Storage45191919
Pipeline Balancing Injection75000
Withdrawal
PG&E Storage
Core and Market Center
149140176176
Wild Goose Storage466383383383
Central Valley Storage57585757
Lodi Storage99787878
Gill Ranch Storage50555555
Pipeline Balancing Withdrawal0000

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

Actual
for
2/5/2016
Actual
for
2/6/2016
Actual
for
2/7/2016
COMPOSITE TEMPERATURE
Historical Average for current day: 50.9
50.452.657.3
Demand
On-System Demand268423442110
Off-System Deliveries
SoCal Gas (KRS)219106102
Southwest Gas15510
Kern River GT - HDL2700
Transmission Shrinkage282828
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
0030
Wild Goose Storage000
Central Valley Storage000
Lodi Storage04938
Gill Ranch Storage000
TOTAL SYSTEM DEMAND297325312316
Supply
Interconnect Supply
Gas Transmission Northwest972967963
Ruby663597595
California Production404040
SoCal Gas (KRS)000
Kern River GT - HDL000
Kern River GT - Daggett1912
Southern Trails797571
El Paso Natural Gas271270281
Transwestern276332322
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
41344
Wild Goose Storage290160175
Central Valley Storage4400
Lodi Storage9100
Gill Ranch Storage9012234
TOTAL SYSTEM SUPPLY285926062496
INVENTORY CHANGE
(Supply - Demand)
-11475180
TOTAL CUSTOMER IMBALANCE-4096250

*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
2/5/2016
Actual
for
2/6/2016
Actual
for
2/7/2016
Injection
PG&E Storage
Core and Market Center
140140141
Wild Goose Storage295294294
Central Valley Storage275252
Lodi Storage109145145
Gill Ranch Storage531616
Pipeline Balancing Injection39075
Withdrawal
PG&E Storage
Core and Market Center
308262191
Wild Goose Storage586466466
Central Valley Storage665757
Lodi Storage2109999
Gill Ranch Storage555050
Pipeline Balancing Withdrawal010
Balancing Gas
Imbalance Gas in Storage**373338584046
PG&E Total Gas in Storage744707434074218

*Until yesterday's final figures are released, all numbers 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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