Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Thursday, July 2, 2015 at 7:16 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
6/30/2015System Wide OFO in Effect5% Stage 1 at $ .25 /Dth Low Inventory
7/1/2015No OFO in Effect
7/2/2015No OFO in Effect
7/3/2015No 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 5, posted 05:08 AM PT

Last updated for the Gas Day of 07/02/2015
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
MMcf6/29/20156/30/20157/1/20157/2/20157/3/20157/4/20157/5/2015
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300
4250
4200 4224 4200
4150
4100 4111
4050 407540724080
40004041
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
7/2/2015
Forecast
for
7/3/2015
Forecast
for
7/4/2015
Forecast
for
7/5/2015
Beginning Inventory4111420040754072
Ending Inventory4200407540724080
Inventory Change89-125-38
 
Upper Limit4350435043004300
Difference*
(Upper Limit - Ending Inventory)
150275228220
 
Lower Limit4000400039003900
Difference*
(Ending Inventory - Lower Limit)
20075172180

*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 5, posted 05:08 AM PT

Last updated for the Gas Day of 07/02/2015
Next update expected by 8:00 AM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
7/2/2015
Forecast
for
7/3/2015
Forecast
for
7/4/2015
Forecast
for
7/5/2015
COMPOSITE TEMPERATURE
Historical Average for current day: 69.9
0000
Demand
On-System Demand2,3702,0601,8401,755
Off-System Deliveries
SoCal Gas (KRS)336361361361
Southwest Gas2333
Kern River GT - HDL93919191
Transmission Shrinkage30303030
Injection
PG&E Storage Injection (372 Maximum)*
Core, Market Center, and Pipeline Balancing
179270270345
Wild Goose Storage0115050
Central Valley Storage0111
Lodi Storage005050
Gill Ranch Storage0222222
TOTAL SYSTEM DEMAND3,0102,8492,7172,707
Supply
Interconnect Supply
Gas Transmission Northwest1,1611,2011,2011,201
Ruby891882882882
California Production38353535
SoCal Gas (KRS)0000
Kern River GT - HDL0000
Kern River GT - Daggett15262626
Southern Trails78797979
El Paso Natural Gas262244244244
Transwestern240247247247
Withdrawal
PG&E Storage Withdrawal (1,880 Maximum)*
Core, Market Center, and Pipeline Balancing
0000
Wild Goose Storage279000
Central Valley Storage0000
Lodi Storage136800
Gill Ranch Storage0000
TOTAL SYSTEM SUPPLY3,0992,7232,7152,715
INVENTORY CHANGE
(Supply - Demand)
89-125-38
TOTAL CUSTOMER IMBALANCE180-127-184

*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
7/2/2015
Forecast
for
7/3/2015
Forecast
for
7/4/2015
Forecast
for
7/5/2015
Injection
PG&E Storage
Core and Market Center
241410458458
Wild Goose Storage1462625050
Central Valley Storage9111111
Lodi Storage0415050
Gill Ranch Storage8252525
Pipeline Balancing Injection760075
Withdrawal
PG&E Storage
Core and Market Center
139140188188
Wild Goose Storage42425100
Central Valley Storage10101010
Lodi Storage1334900
Gill Ranch Storage12333
Pipeline Balancing Withdrawal0000

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

Actual
for
6/29/2015
Actual
for
6/30/2015
Actual
for
7/1/2015
COMPOSITE TEMPERATURE
Historical Average for current day: 69.9
72.78078.5
Demand
On-System Demand2,2942,5302,559
Off-System Deliveries
SoCal Gas (KRS)382404337
Southwest Gas222
Kern River GT - HDL11411683
Transmission Shrinkage303029
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
12489168
Wild Goose Storage000
Central Valley Storage000
Lodi Storage2200
Gill Ranch Storage000
TOTAL SYSTEM DEMAND2,9673,1703,179
Supply
Interconnect Supply
Gas Transmission Northwest1,1851,2291,146
Ruby884794883
California Production393738
SoCal Gas (KRS)000
Kern River GT - HDL000
Kern River GT - Daggett464122
Southern Trails486878
El Paso Natural Gas271228234
Transwestern223236237
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
000
Wild Goose Storage50375290
Central Valley Storage17153
Lodi Storage025961
Gill Ranch Storage01424
TOTAL SYSTEM SUPPLY2,7473,3533,066
INVENTORY CHANGE
(Supply - Demand)
-220183-113
TOTAL CUSTOMER IMBALANCE-316224-32

*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
6/29/2015
Actual
for
6/30/2015
Actual
for
7/1/2015
Injection
PG&E Storage
Core and Market Center
279256231
Wild Goose Storage377215145
Central Valley Storage32197
Lodi Storage601011
Gill Ranch Storage29144
Pipeline Balancing Injection0676
Withdrawal
PG&E Storage
Core and Market Center
57173139
Wild Goose Storage431584433
Central Valley Storage348756
Lodi Storage3926874
Gill Ranch Storage283436
Pipeline Balancing Withdrawal9800
Balancing Gas
Imbalance Gas in Storage**2,6692,8933,035
PG&E Total Gas in Storage90,71190,83690,924

*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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