Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Monday, January 27, 2020 at 8:00 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
1/25/2020System Wide OFO in Effect5% Stage 1 at $ .25 /Dth High Inventory
1/26/2020System Wide OFO in Effect5% Stage 1 at $ .25 /Dth High Inventory
1/27/2020System Wide OFO in Effect5% Stage 1 at $ .25 /Dth High Inventory
1/28/2020System Wide OFO in Effect5% Stage 1 at $ .25 /Dth High Inventory

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 04:56 AM PT

Last updated for the Gas Day of 01/27/2020
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
MMcf1/24/20201/25/20201/26/20201/27/20201/28/20201/29/20201/30/2020
4750
4700
4650
4600
4550 4562
45004508
4450
4400 4407
4350
4300 4302
4250
4200
4150 4198 4169
4100 4107
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
1/27/2020
Forecast
for
1/28/2020
Forecast
for
1/29/2020
Forecast
for
1/30/2020
Beginning Inventory4407419841074169
Ending Inventory4198410741694302
Inventory Change-209-9162133
 
Upper Limit4500450044004400
Difference*
(Upper Limit - Ending Inventory)
30239323198
 
Lower Limit4100410040004000
Difference*
(Ending Inventory - Lower Limit)
987169302

*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 5, posted 04:56 AM PT

Last updated for the Gas Day of 01/27/2020
Next update expected by 8:00 AM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
1/27/2020
Forecast
for
1/28/2020
Forecast
for
1/29/2020
Forecast
for
1/30/2020
COMPOSITE TEMPERATURE
Historical Average for current day: 49
53.552.152.554.1
Demand
On-System Demand2,4102,5152,5302,425
Off-System Deliveries
SoCal Gas (KRS)185152152152
Southwest Gas8888
Kern River GT - HDL48474747
Transmission Shrinkage32313131
Injection
PG&E Storage Injection (105 Maximum)*
Core, Market Center, and Pipeline Balancing
52800
Wild Goose Storage302100
Central Valley Storage0000
Lodi Storage178262626
Gill Ranch Storage0000
TOTAL SYSTEM DEMAND2,9422,8082,7952,690
Supply
Interconnect Supply
Gas Transmission Northwest1,2991,2901,2901,290
Ruby700648648648
California Production34333333
SoCal Gas (KRS)-0-0-0-0
Kern River GT - HDL-0-0-0-0
Kern River GT - Daggett0000
Southern Trails0000
El Paso Natural Gas321308308308
Transwestern300342342342
Withdrawal
PG&E Storage Withdrawal (938 Maximum)*
Core, Market Center, and Pipeline Balancing
1010066
Wild Goose Storage-0-05050
Central Valley Storage-0706060
Lodi Storage-0-0-0-0
Gill Ranch Storage79272727
TOTAL SYSTEM SUPPLY2,7342,7172,8572,823
INVENTORY CHANGE
(Supply - Demand)
-209-9162133
TOTAL CUSTOMER IMBALANCE-145-128100171

*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
1/27/2020
Forecast
for
1/28/2020
Forecast
for
1/29/2020
Forecast
for
1/30/2020
Injection
PG&E Storage
Core and Market Center
225388215215
Wild Goose Storage48748300
Central Valley Storage48000
Lodi Storage373219219219
Gill Ranch Storage24242424
Pipeline Balancing Injection7307575
Withdrawal
PG&E Storage
Core and Market Center
319380390356
Wild Goose Storage4524625050
Central Valley Storage60706060
Lodi Storage194194194194
Gill Ranch Storage27515151
Pipeline Balancing Withdrawal0000

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

Actual
for
1/24/2020
Actual
for
1/25/2020
Actual
for
1/26/2020
COMPOSITE TEMPERATURE
Historical Average for current day: 49
55.156.654
Demand
On-System Demand2,2161,9762,094
Off-System Deliveries
SoCal Gas (KRS)201196211
Southwest Gas888
Kern River GT - HDL584756
Transmission Shrinkage313131
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
05163
Wild Goose Storage1008295
Central Valley Storage0013
Lodi Storage31183180
Gill Ranch Storage04953
TOTAL SYSTEM DEMAND2,6462,6222,805
Supply
Interconnect Supply
Gas Transmission Northwest1,3471,2931,300
Ruby665696690
California Production323534
SoCal Gas (KRS)-0-0-0
Kern River GT - HDL-0-0-0
Kern River GT - Daggett000
Southern Trails000
El Paso Natural Gas320323319
Transwestern291313307
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
7950
Wild Goose Storage-0-0-0
Central Valley Storage5912-0
Lodi Storage-0-0-0
Gill Ranch Storage29-0-0
TOTAL SYSTEM SUPPLY2,8222,6762,650
INVENTORY CHANGE
(Supply - Demand)
17654-155
TOTAL CUSTOMER IMBALANCE29912518

*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
1/24/2020
Actual
for
1/25/2020
Actual
for
1/26/2020
Injection
PG&E Storage
Core and Market Center
221220235
Wild Goose Storage594531530
Central Valley Storage04873
Lodi Storage270374373
Gill Ranch Storage482424
Pipeline Balancing Injection10877131
Withdrawal
PG&E Storage
Core and Market Center
437196247
Wild Goose Storage488439442
Central Valley Storage606060
Lodi Storage247194194
Gill Ranch Storage502727
Pipeline Balancing Withdrawal000
Balancing Gas
Imbalance Gas in Storage**-114-109-130
PG&E Total Gas in Storage59,44959,44959,397

*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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