Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Tuesday, July 7, 2020 at 7:10 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
7/5/2020No OFO in Effect
7/6/2020No OFO in Effect
7/7/2020No OFO in Effect
7/8/2020No 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.

Return to top


System Inventory Status

Plan 3, posted 04:36 PM PT

Last updated for the Gas Day of 07/07/2020
Next update expected by 11:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf7/4/20207/5/20207/6/20207/7/20207/8/20207/9/20207/10/2020
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300 4305 4305
4250
42004230
4150 4192
4100 4138
4050 40854058
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.

Return to top


System Inventory Summary

Forecast
for
7/7/2020
Forecast
for
7/8/2020
Forecast
for
7/9/2020
Forecast
for
7/10/2020
Beginning Inventory4138430541924085
Ending Inventory4305419240854058
Inventory Change167-113-107-27
 
Upper Limit4400440044004400
Difference*
(Upper Limit - Ending Inventory)
95208315342
 
Lower Limit4000400040004000
Difference*
(Ending Inventory - Lower Limit)
3051928558

*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.

Return to top


PG&E Supply and Demand Forecast
(Net Physical Flows)

Plan 3, posted 04:36 PM PT

Last updated for the Gas Day of 07/07/2020
Next update expected by 11:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
7/7/2020
Forecast
for
7/8/2020
Forecast
for
7/9/2020
Forecast
for
7/10/2020
COMPOSITE TEMPERATURE
Historical Average for current day: 70
70.171.973.973
Demand
On-System Demand1725175017601680
Off-System Deliveries
SoCal Gas (KRS)323306306306
Southwest Gas4444
Kern River GT - HDL39393939
Transmission Shrinkage28252525
Injection
PG&E Storage Injection (325 Maximum)*
Core, Market Center, and Pipeline Balancing
01500
Wild Goose Storage0189090
Central Valley Storage30303030
Lodi Storage4000
Gill Ranch Storage834300
TOTAL SYSTEM DEMAND2236223022542174
Supply
Interconnect Supply
Gas Transmission Northwest1472127212721272
Ruby327304304304
California Production31313131
SoCal Gas (KRS)-0-0-0-0
Kern River GT - HDL-0-0-0-0
Kern River GT - Daggett0000
Southern Trails0000
El Paso Natural Gas199209209209
Transwestern262270270270
Withdrawal
PG&E Storage Withdrawal (949 Maximum)*
Core, Market Center, and Pipeline Balancing
001616
Wild Goose Storage113-0-0-0
Central Valley Storage-0-0-0-0
Lodi Storage-0313131
Gill Ranch Storage-0-01414
TOTAL SYSTEM SUPPLY2403211721472147
INVENTORY CHANGE
(Supply - Demand)
167-113-107-27
TOTAL CUSTOMER IMBALANCE89-126-117-37

*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.

Return to top


PG&E Storage Activity Forecast
(Scheduled Volumes)

Forecast
for
7/7/2020
Forecast
for
7/8/2020
Forecast
for
7/9/2020
Forecast
for
7/10/2020
Injection
PG&E Storage
Core and Market Center
2352109898
Wild Goose Storage3433819090
Central Valley Storage30303030
Lodi Storage40292929
Gill Ranch Storage55333333
Pipeline Balancing Injection0255
Withdrawal
PG&E Storage
Core and Market Center
114140119119
Wild Goose Storage45536300
Central Valley Storage-0-0-0-0
Lodi Storage36595959
Gill Ranch Storage29484848
Pipeline Balancing Withdrawal65000

Return to top


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

Actual
for
7/4/2020
Actual
for
7/5/2020
Actual
for
7/6/2020
COMPOSITE TEMPERATURE
Historical Average for current day: 70
74.773.269
Demand
On-System Demand120814171728
Off-System Deliveries
SoCal Gas (KRS)274275275
Southwest Gas444
Kern River GT - HDL404739
Transmission Shrinkage252525
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
4400
Wild Goose Storage275275260
Central Valley Storage69676
Lodi Storage254534
Gill Ranch Storage34021
TOTAL SYSTEM DEMAND199821542391
Supply
Interconnect Supply
Gas Transmission Northwest133513411318
Ruby272272273
California Production293031
SoCal Gas (KRS)-0-0-0
Kern River GT - HDL-0-0-0
Kern River GT - Daggett000
Southern Trails000
El Paso Natural Gas210214213
Transwestern248250252
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
0122138
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 SUPPLY209422292224
INVENTORY CHANGE
(Supply - Demand)
9675-167
TOTAL CUSTOMER IMBALANCE79-121-384

*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.

Return to top


PG&E Recent Storage Activity
(Scheduled Volumes)

Actual
for
7/4/2020
Actual
for
7/5/2020
Actual
for
7/6/2020
Injection
PG&E Storage
Core and Market Center
185176204
Wild Goose Storage473475474
Central Valley Storage686868
Lodi Storage747474
Gill Ranch Storage565655
Pipeline Balancing Injection000
Withdrawal
PG&E Storage
Core and Market Center
114114114
Wild Goose Storage197198217
Central Valley Storage-0-049
Lodi Storage363641
Gill Ranch Storage282834
Pipeline Balancing Withdrawal21212228
Balancing Gas
Imbalance Gas in Storage**350333712988
PG&E Total Gas in Storage738017385273702

*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 5.0 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.

Return to top