Operating Data | California Gas Transmission Pipeline Status

OFO/EFO Outlook

Last Updated Friday, March 27, 2015 at 7:18 AM
Gas DayActivityToleranceStage/Noncompliance ChargeReason
3/25/2015No OFO in Effect
3/26/2015System Wide OFO in Effect5% Stage 1 at $ .25 /Dth High Inventory
3/27/2015No OFO in Effect
3/28/2015No 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 2, posted 01:06 PM PT

Last updated for the Gas Day of 03/27/2015
Next update expected by 3:30 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

Ending Inventory HistoryEnding Inventory Forecasts
MMcf3/24/20153/25/20153/26/20153/27/20153/28/20153/29/20153/30/2015
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300
4250
4200 4225
4150 4150 4173
4100 4142 4129
4050
40004049
3950 3964
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
3/27/2015
Forecast
for
3/28/2015
Forecast
for
3/29/2015
Forecast
for
3/30/2015
Beginning Inventory3964414241734225
Ending Inventory4142417342254129
Inventory Change1783152-96
 
Upper Limit4300430043004300
Difference*
(Upper Limit - Ending Inventory)
15812775171
 
Lower Limit3900390039003900
Difference*
(Ending Inventory - Lower Limit)
242273325229

*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 2, posted 01:06 PM PT

Last updated for the Gas Day of 03/27/2015
Next update expected by 3:30 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
Forecast
for
3/27/2015
Forecast
for
3/28/2015
Forecast
for
3/29/2015
Forecast
for
3/30/2015
COMPOSITE TEMPERATURE
Historical Average for current day: 55.7
63.862.564.263.5
Demand
On-System Demand1867177617591931
Off-System Deliveries
SoCal Gas (KRS)103696969
Southwest Gas4444
Kern River GT - HDL0000
Transmission Shrinkage26252525
Injection
PG&E Storage Injection (351 Maximum)*
Core, Market Center, and Pipeline Balancing
98245241217
Wild Goose Storage0000
Central Valley Storage0151515
Lodi Storage126757575
Gill Ranch Storage38949494
TOTAL SYSTEM DEMAND2262230322822430
Supply
Interconnect Supply
Gas Transmission Northwest1158111211121112
Ruby413343343343
California Production40404040
SoCal Gas (KRS)0000
Kern River GT - HDL82000
Kern River GT - Daggett220313313313
Southern Trails8212121
El Paso Natural Gas166199199199
Transwestern246284284284
Withdrawal
PG&E Storage Withdrawal (1365 Maximum)*
Core, Market Center, and Pipeline Balancing
0000
Wild Goose Storage107232323
Central Valley Storage0000
Lodi Storage0000
Gill Ranch Storage0000
TOTAL SYSTEM SUPPLY2440233423342334
INVENTORY CHANGE
(Supply - Demand)
1783152-96
TOTAL CUSTOMER IMBALANCE257103129-19

*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
3/27/2015
Forecast
for
3/28/2015
Forecast
for
3/29/2015
Forecast
for
3/30/2015
Injection
PG&E Storage
Core and Market Center
213352368344
Wild Goose Storage388432432432
Central Valley Storage44606060
Lodi Storage229162162162
Gill Ranch Storage38949494
Pipeline Balancing Injection75757575
Withdrawal
PG&E Storage
Core and Market Center
190182202202
Wild Goose Storage495455455455
Central Valley Storage45454545
Lodi Storage103878787
Gill Ranch Storage0000
Pipeline Balancing Withdrawal0000

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

Actual
for
3/24/2015
Actual
for
3/25/2015
Actual
for
3/26/2015
COMPOSITE TEMPERATURE
Historical Average for current day: 55.7
59.662.566.2
Demand
On-System Demand204720162002
Off-System Deliveries
SoCal Gas (KRS)181162162
Southwest Gas444
Kern River GT - HDL0031
Transmission Shrinkage282826
Injection
PG&E Storage
Core, Market Center, and Pipeline Balancing
26105111
Wild Goose Storage000
Central Valley Storage0022
Lodi Storage6671142
Gill Ranch Storage1029050
TOTAL SYSTEM DEMAND245324752549
Supply
Interconnect Supply
Gas Transmission Northwest115811481160
Ruby673660624
California Production293032
SoCal Gas (KRS)000
Kern River GT - HDL32190
Kern River GT - Daggett15216191
Southern Trails48150
El Paso Natural Gas9318990
Transwestern303308297
Withdrawal
PG&E Storage
Core, Market Center, and Pipeline Balancing
800
Wild Goose Storage504568
Central Valley Storage000
Lodi Storage000
Gill Ranch Storage000
TOTAL SYSTEM SUPPLY254625762363
INVENTORY CHANGE
(Supply - Demand)
93101-186
TOTAL CUSTOMER IMBALANCE158240-113

*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
3/24/2015
Actual
for
3/25/2015
Actual
for
3/26/2015
Injection
PG&E Storage
Core and Market Center
222198266
Wild Goose Storage444465429
Central Valley Storage445363
Lodi Storage179227232
Gill Ranch Storage587148
Pipeline Balancing Injection5610844
Withdrawal
PG&E Storage
Core and Market Center
202202199
Wild Goose Storage499500495
Central Valley Storage455445
Lodi Storage11315989
Gill Ranch Storage280
Pipeline Balancing Withdrawal000
Balancing Gas
Imbalance Gas in Storage**241526402563
PG&E Total Gas in Storage674276750367608

*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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