Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Wednesday, June 26, 2019 at 7:21 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
6/24/2019No OFO in Effect
6/25/2019System Wide OFO in Effect2% Stage 1 at $ .25 /Dth High Inventory
6/26/2019System Wide OFO in Effect0% Stage 1 at $ .25 /Dth High Inventory
6/27/2019No 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 1, posted 08:06 AM PT

Last updated for the Gas Day of 06/26/2019
Next update expected by 1:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf6/23/20196/24/20196/25/20196/26/20196/27/20196/28/20196/29/2019
4750
4700
4650
4600
4550
4500
4450
4400 4419
4350 4391
43004326 433843354342
4250 4278
4200
4150
4100
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
6/26/2019
Forecast
for
6/27/2019
Forecast
for
6/28/2019
Forecast
for
6/29/2019
Beginning Inventory4419439143384335
Ending Inventory4391433843354342
Inventory Change-28-53-37
 
Upper Limit4500450045004500
Difference*
(Upper Limit - Ending Inventory)
109162165158
 
Lower Limit4100410041004100
Difference*
(Ending Inventory - Lower Limit)
291238235242

*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 1, posted 08:06 AM PT

Last updated for the Gas Day of 06/26/2019
Next update expected by 1:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
6/26/2019
Forecast
for
6/27/2019
Forecast
for
6/28/2019
Forecast
for
6/29/2019
COMPOSITE TEMPERATURE
Historical Average for current day: 69
6564.265.566.1
Demand
On-System Demand1510148014301325
Off-System Deliveries
SoCal Gas (KRS)239263263263
Southwest Gas5555
Kern River GT - HDL0000
Transmission Shrinkage31313131
Injection
PG&E Storage Injection (384 Maximum)*
Core, Market Center, and Pipeline Balancing
356359359359
Wild Goose Storage354382382382
Central Valley Storage104104104104
Lodi Storage173173173267
Gill Ranch Storage65656565
TOTAL SYSTEM DEMAND2837286228122802
Supply
Interconnect Supply
Gas Transmission Northwest1406140614061406
Ruby664664664664
California Production22222222
SoCal Gas (KRS)-0-0-0-0
Kern River GT - HDL-0-0-0-0
Kern River GT - Daggett11111111
Southern Trails0000
El Paso Natural Gas420420420420
Transwestern286286286286
Withdrawal
PG&E Storage Withdrawal (753 Maximum)*
Core, Market Center, and Pipeline Balancing
0000
Wild Goose Storage-0-0-0-0
Central Valley Storage-0-0-0-0
Lodi Storage-0-0-0-0
Gill Ranch Storage-0-0-0-0
TOTAL SYSTEM SUPPLY2809280928092809
INVENTORY CHANGE
(Supply - Demand)
-28-53-37
TOTAL CUSTOMER IMBALANCE33116170

*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
6/26/2019
Forecast
for
6/27/2019
Forecast
for
6/28/2019
Forecast
for
6/29/2019
Injection
PG&E Storage
Core and Market Center
344348348348
Wild Goose Storage354382382382
Central Valley Storage104104104104
Lodi Storage188188188267
Gill Ranch Storage69696969
Pipeline Balancing Injection75757575
Withdrawal
PG&E Storage
Core and Market Center
63636363
Wild Goose Storage0000
Central Valley Storage-0-0-0-0
Lodi Storage1616160
Gill Ranch Storage4444
Pipeline Balancing Withdrawal0000

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

Actual
for
6/23/2019
Actual
for
6/24/2019
Actual
for
6/25/2019
COMPOSITE TEMPERATURE
Historical Average for current day:
74.971.470.2
Demand
On-System Demand143016611580
Off-System Deliveries
SoCal Gas (KRS)116103245
Southwest Gas555
Kern River GT - HDL000
Transmission Shrinkage292932
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
243303305
Wild Goose Storage430330315
Central Valley Storage1145615
Lodi Storage193169163
Gill Ranch Storage16411297
TOTAL SYSTEM DEMAND272427692757
Supply
Interconnect Supply
Gas Transmission Northwest142613881402
Ruby558566750
California Production212125
SoCal Gas (KRS)-0-0-0
Kern River GT - HDL5-0-0
Kern River GT - Daggett009
Southern Trails000
El Paso Natural Gas469459431
Transwestern291287281
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
000
Wild Goose Storage-0-0-0
Central Valley Storage-0-0-0
Lodi Storage-0-0-0
Gill Ranch Storage-0-0-0
TOTAL SYSTEM SUPPLY277027212898
INVENTORY CHANGE
(Supply - Demand)
46-48141
TOTAL CUSTOMER IMBALANCE-105-104183

*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
6/23/2019
Actual
for
6/24/2019
Actual
for
6/25/2019
Injection
PG&E Storage
Core and Market Center
351351347
Wild Goose Storage7607601993
Central Valley Storage11410456
Lodi Storage205187191
Gill Ranch Storage169142100
Pipeline Balancing Injection01421
Withdrawal
PG&E Storage
Core and Market Center
756363
Wild Goose Storage3374281671
Central Valley Storage-04848
Lodi Storage161627
Gill Ranch Storage-0292
Pipeline Balancing Withdrawal3400
Balancing Gas
Imbalance Gas in Storage**348033603546
PG&E Total Gas in Storage635606377364075

*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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