Pipeline Status

    OFO/EFO Outlook
System Inventory Status
System Inventory Summary
Supply & Demand Forecast
Storage Activity Forecast
Recent Supply & Demand Data
Recent Storage Activity
Daily Demand by Customer Class
Physical Pipeline Capacity
Supply & Demand Archive
Pipeline Maintenance News: F.O.G.horn
OFO/EFO Archive
Storage Activity Archive
OFO Overview

 


OFO/EFO Outlook

Last Updated Wednesday, January 2, 2002 at 7:22 AM (PT)
Gas Day Activity Tolerance Stage/
Noncompliance Charge
Reason
December 31, 2001 No OFO in effect
January 1, 2002 No OFO in effect
January 2, 2002 No OFO in effect
January 3, 2002 System-wide OFO Called 0% Stage 2 at $1.00/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 Hotline at (415) 973-2424.

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 3:19 PM PT
Last updated for the Gas Day of 1/2/2002
Next update expected by 11:30 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

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  Ending Inventory History Ending Inventory Forecasts
MMcf 12/30/2001 12/31/2001 1/1/2002 1/2/2002 1/3/2002 1/4/2002 1/5/2002
4800              
4700              
4600              
4500     4572 4500     4545
4400   4447     4407 4406  
4300              
4200 4231            
4100              
4000              
3900              
3800              
3700              
3600              
    Within Operating Limits
    Outside Operating Limits

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
1/2/2002
Forecast
for
1/3/2002
Forecast
for
1/4/2002
Forecast
for
1/5/2002
Beginning Inventory 4572 4500 4407 4406
Ending Inventory 4500 4407 4406 4545
Inventory Change -72 -93 -1 139


Upper Limit 4500 4500 4500 4500
Difference*
(Upper Limit - Ending Inventory)
0 93 94 -45


Lower Limit 3900 4000 4000 3900
Difference*
(Ending Inventory - Lower Limit)
600 407 406 645

*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 3:19 PM PT
Last updated for the Gas Day of 1/2/2002
Next update expected by 11:30 PM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)
  Forecast
for
1/2/2002
Forecast
for
1/3/2002
Forecast
for
1/4/2002
Forecast
for
1/5/2002
COMPOSITE TEMPERATURE
Historical Average for current month: 48.4
53.7 49.4 49.9 51.7
Demand
On-System Demand 2524 2804 2854 2586
Off-System Deliveries  
   SoCal Gas (KRS) 102 180 107 107
   Southwest Gas 8 11 11 11
Transmission Shrinkage 34 33 33 33
Injection  
   PG&E Storage ( 120 Maximum)*
    Core, Market Center, and Pipeline Balancing
25 0 0 0
   Wild Goose Storage 0 43 0 0
TOTAL SYSTEM DEMAND 2693 3071 3005 2737
Supply
Interconnect Supply  
   PG&E-GT Northwest 1569 1560 1560 1560
   California Production 186 186 186 186
   Kern River GT 117 100 100 100
   Transwestern 255 176 176 176
   El Paso Natural Gas 414 458 429 429
   SoCal Gas (KRS) 0 0 0 0
Withdrawal  
   PG&E Storage ( 1633 Maximum)*
    Core, Market Center, and Pipeline Balancing
0 499 494 365
   Wild Goose Storage 80 0 60 60
TOTAL SYSTEM SUPPLY 2621 2978 3004 2875
INVENTORY CHANGE
(Supply - Demand)
-72 -93 -1 139

 

*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

  Forecast
for
1/2/2002
Forecast
for
1/3/2002
Forecast
for
1/4/2002
Forecast
for
1/5/2002
Injection  
   PG&E Storage
    Core and Market Center
128 10 20 20
   Wild Goose Storage 34 86 34 34
   Pipeline Balancing Injection 23 0 55 0
Withdrawal  
   PG&E Storage
    Core and Market Center
126 509 569 359
   Wild Goose Storage 80 43 60 60
   Pipeline Balancing Withdrawal 0 0 0 25
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PG&E Recent Supply and Demand Data
(Net Physical Flows)

  Actual
for
12/30/2001
Actual
for
12/31/2001
Actual
for
1/1/2002*
COMPOSITE TEMPERATURE
Historical Average for current month: 48.4
56.0 56.0 57.6
System Demand
On-System Demand 2368 2171 2113
Off-System Deliveries  
   SoCal Gas (KRS) 46 46 123
   Southwest Gas 11 10 11
Transmission Shrinkage 34 33 34
Injection  
   PG&E Storage
    Core, Market Center, and Pipeline Balancing
0 30 167
   Wild Goose Storage 38 22 0
TOTAL SYSTEM DEMAND 2495 2310 2446
Supply
Interconnect Supply  
   PG&E-GT Northwest 1483 1477 1534
   California Production 185 187 181
   Kern River GT 65 59 127
   Transwestern 233 233 245
   El Paso Natural Gas 529 536 424
   SoCal Gas 0 0 0
Withdrawal  
   PG&E Storage
    Core, Market Center, and Pipeline Balancing
90 34 0
   Wild Goose Storage 0 0 59
TOTAL SYSTEM SUPPLY 2585 2526 2571
INVENTORY CHANGE
(Supply - Demand)
90 216 125

 

*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

  Actual
for
12/30/2001
Actual
for
12/31/2001
Actual
for
1/1/2002*
Injection  
   PG&E Storage
    Core and Market Center
156 186 102
   Wild Goose Storage 95 106 34
   Pipeline Balancing Injection 0 3 190
Withdrawal  
   PG&E Storage
    Core and Market Center
173 192 124
   Wild Goose Storage 56 81 95
   Pipeline Balancing Withdrawal 73 0 0
Balancing Gas  
    Imbalance Gas in Storage** 2625 2699 2952

 

*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 2.2 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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2000 PG&E California Gas Transmission