Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Friday, May 27, 2016 at 7:36 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
5/25/2016No OFO in Effect
5/26/2016No OFO in Effect
5/27/2016System Wide OFO in Effect5% Stage 2 at $ 1.00 /Dth High Inventory
5/28/2016No 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 3, posted 04:11 PM PT

Last updated for the Gas Day of 05/27/2016
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
MMcf5/24/20165/25/20165/26/20165/27/20165/28/20165/29/20165/30/2016
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300
4250 42714269
4200
4150
4100
40504094 4073 4054
4000 4045 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
5/27/2016
Forecast
for
5/28/2016
Forecast
for
5/29/2016
Forecast
for
5/30/2016
Beginning Inventory4269407340454054
Ending Inventory4073404540544000
Inventory Change-196-289-54
 
Upper Limit4300430043004300
Difference*
(Upper Limit - Ending Inventory)
227255246300
 
Lower Limit3900390039003900
Difference*
(Ending Inventory - Lower Limit)
173145154100

*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 3, posted 04:11 PM PT

Last updated for the Gas Day of 05/27/2016
Next update expected by 11:00 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
5/27/2016
Forecast
for
5/28/2016
Forecast
for
5/29/2016
Forecast
for
5/30/2016
COMPOSITE TEMPERATURE
Historical Average for current day: 65.1
69.171.170.473.3
Demand
On-System Demand1435138513451445
Off-System Deliveries
SoCal Gas (KRS)236167167167
Southwest Gas4444
Kern River GT - HDL0000
Transmission Shrinkage24262626
Injection
PG&E Storage Injection (380 Maximum)*
Core, Market Center, and Pipeline Balancing
250321324287
Wild Goose Storage130606060
Central Valley Storage27222222
Lodi Storage60178178178
Gill Ranch Storage0111111
TOTAL SYSTEM DEMAND2165217321362199
Supply
Interconnect Supply
Gas Transmission Northwest1293119211921192
Ruby384463463463
California Production33333333
SoCal Gas (KRS)0000
Kern River GT - HDL18303030
Kern River GT - Daggett52242424
Southern Trails0000
El Paso Natural Gas45237237237
Transwestern141167167167
Withdrawal
PG&E Storage Withdrawal (1745 Maximum)*
Core, Market Center, and Pipeline Balancing
0000
Wild Goose Storage0000
Central Valley Storage0000
Lodi Storage0000
Gill Ranch Storage2000
TOTAL SYSTEM SUPPLY1969214521452145
INVENTORY CHANGE
(Supply - Demand)
-196-289-54
TOTAL CUSTOMER IMBALANCE-1333169-31

*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
5/27/2016
Forecast
for
5/28/2016
Forecast
for
5/29/2016
Forecast
for
5/30/2016
Injection
PG&E Storage
Core and Market Center
301367370370
Wild Goose Storage475439439439
Central Valley Storage83787878
Lodi Storage99217217217
Gill Ranch Storage13232323
Pipeline Balancing Injection75757538
Withdrawal
PG&E Storage
Core and Market Center
126121121121
Wild Goose Storage345379379379
Central Valley Storage56565656
Lodi Storage39404040
Gill Ranch Storage15121212
Pipeline Balancing Withdrawal0000

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

Actual
for
5/24/2016
Actual
for
5/25/2016
Actual
for
5/26/2016
COMPOSITE TEMPERATURE
Historical Average for current day: 65.1
61.762.464.8
Demand
On-System Demand149614611489
Off-System Deliveries
SoCal Gas (KRS)249256196
Southwest Gas444
Kern River GT - HDL000
Transmission Shrinkage272827
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
244291303
Wild Goose Storage195115160
Central Valley Storage700
Lodi Storage000
Gill Ranch Storage0048
TOTAL SYSTEM DEMAND222221552226
Supply
Interconnect Supply
Gas Transmission Northwest132613051249
Ruby490481492
California Production333433
SoCal Gas (KRS)000
Kern River GT - HDL01330
Kern River GT - Daggett44737
Southern Trails000
El Paso Natural Gas150235223
Transwestern162190189
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
000
Wild Goose Storage000
Central Valley Storage000
Lodi Storage2600
Gill Ranch Storage000
TOTAL SYSTEM SUPPLY223123322224
INVENTORY CHANGE
(Supply - Demand)
9177-2
TOTAL CUSTOMER IMBALANCE85223164

*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
5/24/2016
Actual
for
5/25/2016
Actual
for
5/26/2016
Injection
PG&E Storage
Core and Market Center
347346341
Wild Goose Storage453435569
Central Valley Storage626262
Lodi Storage1097966
Gill Ranch Storage192117
Pipeline Balancing Injection7868168
Withdrawal
PG&E Storage
Core and Market Center
150128150
Wild Goose Storage261322415
Central Valley Storage565656
Lodi Storage1367866
Gill Ranch Storage501522
Pipeline Balancing Withdrawal000
Balancing Gas
Imbalance Gas in Storage**354537663932
PG&E Total Gas in Storage898049007990364

*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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