Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Monday, January 26, 2015 at 7:18 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
1/24/2015No OFO in Effect
1/25/2015No OFO in Effect
1/26/2015No OFO in Effect
1/27/2015No 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 09:56 PM PT

Last updated for the Gas Day of 01/26/2015
Next update expected by 8:00 AM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf1/23/20151/24/20151/25/20151/26/20151/27/20151/28/20151/29/2015
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300
4250
4200
4150 41534197
4100 4116 4114
40504071
4000 4009
3950 3992
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
1/26/2015
Forecast
for
1/27/2015
Forecast
for
1/28/2015
Forecast
for
1/29/2015
Beginning Inventory4116400941144153
Ending Inventory4009411441534197
Inventory Change-1071053944
 
Upper Limit4450435044504450
Difference*
(Upper Limit - Ending Inventory)
441236297253
 
Lower Limit4000390040004000
Difference*
(Ending Inventory - Lower Limit)
9214153197

*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 4, posted 09:56 PM PT

Last updated for the Gas Day of 01/26/2015
Next update expected by 8:00 AM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
1/26/2015
Forecast
for
1/27/2015
Forecast
for
1/28/2015
Forecast
for
1/29/2015
COMPOSITE TEMPERATURE
Historical Average for current day: 49.5
54.253.852.652.6
Demand
On-System Demand2,6452,5852,6102,630
Off-System Deliveries
SoCal Gas (KRS)236148148148
Southwest Gas11111111
Kern River GT - HDL0171717
Transmission Shrinkage29282828
Injection
PG&E Storage Injection (208 Maximum)*
Core, Market Center, and Pipeline Balancing
0000
Wild Goose Storage0000
Central Valley Storage17000
Lodi Storage88000
Gill Ranch Storage0111
TOTAL SYSTEM DEMAND3,0262,7902,8152,835
Supply
Interconnect Supply
Gas Transmission Northwest1,1221,1411,1411,141
Ruby726687687687
California Production43434343
SoCal Gas (KRS)0000
Kern River GT - HDL0000
Kern River GT - Daggett71717171
Southern Trails79797979
El Paso Natural Gas270275275275
Transwestern297292292292
Withdrawal
PG&E Storage Withdrawal (1,499 Maximum)*
Core, Market Center, and Pipeline Balancing
2830137162
Wild Goose Storage29105105105
Central Valley Storage0262626
Lodi Storage017700
Gill Ranch Storage0000
TOTAL SYSTEM SUPPLY2,9192,8952,8542,879
INVENTORY CHANGE
(Supply - Demand)
-1071053944
TOTAL CUSTOMER IMBALANCE-3137117122

*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
1/26/2015
Forecast
for
1/27/2015
Forecast
for
1/28/2015
Forecast
for
1/29/2015
Injection
PG&E Storage
Core and Market Center
339352101101
Wild Goose Storage337328328328
Central Valley Storage87565656
Lodi Storage29214900
Gill Ranch Storage118118118118
Pipeline Balancing Injection7507575
Withdrawal
PG&E Storage
Core and Market Center
697284314339
Wild Goose Storage365433433433
Central Valley Storage70838383
Lodi Storage20432600
Gill Ranch Storage119117117117
Pipeline Balancing Withdrawal06800

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

Actual
for
1/23/2015
Actual
for
1/24/2015
Actual
for
1/25/2015
COMPOSITE TEMPERATURE
Historical Average for current day: 49.5
5150.849.4
Demand
On-System Demand2,7282,4432,501
Off-System Deliveries
SoCal Gas (KRS)225226202
Southwest Gas12109
Kern River GT - HDL8600
Transmission Shrinkage282929
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
000
Wild Goose Storage11500
Central Valley Storage0027
Lodi Storage0103102
Gill Ranch Storage000
TOTAL SYSTEM DEMAND3,1952,8112,869
Supply
Interconnect Supply
Gas Transmission Northwest1,1251,1271,101
Ruby680725726
California Production393739
SoCal Gas (KRS)000
Kern River GT - HDL000
Kern River GT - Daggett708280
Southern Trails828079
El Paso Natural Gas279268281
Transwestern279292292
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
58689362
Wild Goose Storage03030
Central Valley Storage400
Lodi Storage16700
Gill Ranch Storage000
TOTAL SYSTEM SUPPLY3,3112,7322,991
INVENTORY CHANGE
(Supply - Demand)
116-79122
TOTAL CUSTOMER IMBALANCE59-3580

*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
1/23/2015
Actual
for
1/24/2015
Actual
for
1/25/2015
Injection
PG&E Storage
Core and Market Center
163339339
Wild Goose Storage561337337
Central Valley Storage728787
Lodi Storage120293293
Gill Ranch Storage112118118
Pipeline Balancing Injection0660
Withdrawal
PG&E Storage
Core and Market Center
688495652
Wild Goose Storage443365365
Central Valley Storage877070
Lodi Storage291190190
Gill Ranch Storage117119119
Pipeline Balancing Withdrawal60050
Balancing Gas
Imbalance Gas in Storage**2,8733,0193,190
PG&E Total Gas in Storage70,15869,57269,482

*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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