Pacific Gas & Electric - PG&E

Last Updated Saturday, May 18, 2013 at 7:19am

Gas Day	Activity	Tolerance	Stage/Noncompliance Charge	Reason
05/16/2013	No OFO in Effect
05/17/2013	No OFO in Effect
05/18/2013	System Wide OFO in Effect	5%	Stage 1 at $.25/Dth	High Inventory
05/19/2013	No 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

	Ending Inventory History			Ending Inventory Forecasts
MMcf	5/15/2013	5/16/2013	5/17/2013	5/18/2013	5/19/2013	5/20/2013	5/21/2013
4750
4700
4650
4600
4550
4500
4450
4400
4350
4300			4326
4250		4268
4200	4201
4150				4190
4100
4050					4075		4066
4000						4016
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 5/18/2013	Forecast for 5/19/2013	Forecast for 5/20/2013	Forecast for 5/21/2013
Beginning Inventory	4326	4190	4075	4016
Ending Inventory	4190	4075	4016	4066
Inventory Change	-136	-115	-59	50
Upper Limit	4450	4350	4350	4350
Difference* (Upper Limit - Ending Inventory)	260	275	334	284
Lower Limit	4000	3900	3900	3900
Difference* (Ending Inventory - Lower Limit)	190	175	116	166

*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 4, posted 09:26 PM PT

Last updated for the Gas Day of 05/18/2013
Next update expected by 5:30 AM PT
(The Gas Day runs from 7:00 AM to 7:00 AM)

	Forecast for 5/18/2013	Forecast for 5/19/2013	Forecast for 5/20/2013	Forecast for 5/21/2013
COMPOSITE TEMPERATURE Historical Average for current day: 63.6	63.6	68.6	70.9	64.4
Demand
On-System Demand	1510	1535	1725	1760
Off-System Deliveries
SoCal Gas (KRS)	389	330	330	330
Southwest Gas	4	3	3	3
Kern River GT - HDL	0	0	0	0
Transmission Shrinkage	27	27	27	27
Injection
PG&E Storage (495 Maximum)* Core, Market Center, and Pipeline Balancing	386	346	312	244
Wild Goose Storage	235	225	100	100
Central Valley Storage	48	48	48	28
Lodi Storage	167	167	81	24
Gill Ranch Storage	106	106	106	106
TOTAL SYSTEM DEMAND	2873	2786	2731	2622
Supply
Interconnect Supply
Gas Transmission Northwest	1207	1138	1138	1138
Ruby	780	780	780	780
California Production	59	59	59	59
SoCal Gas (KRS)	0	0	0	0
Kern River GT - HDL	40	0	0	0
Kern River GT - Daggett	226	272	272	272
Southern Trails	0	0	0	0
El Paso Natural Gas	256	256	256	256
Transwestern	169	169	169	169
Withdrawal
PG&E Storage (1076 Maximum)* Core, Market Center, and Pipeline Balancing	0	0	0	0
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 SUPPLY	2736	2672	2672	2672
INVENTORY CHANGE (Supply - Demand)	-136	-115	-59	50
TOTAL CUSTOMER IMBALANCE	-76	-85	-62	121

*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 5/18/2013	Forecast for 5/19/2013	Forecast for 5/20/2013	Forecast for 5/21/2013
Injection
PG&E Storage Core and Market Center	580	580	580	476
Wild Goose Storage	512	501	100	100
Central Valley Storage	48	48	48	28
Lodi Storage	556	556	81	24
Gill Ranch Storage	60	60	60	60
Pipeline Balancing Injection	75	35	0	75
Withdrawal
PG&E Storage Core and Market Center	189	189	189	228
Wild Goose Storage	277	277	0	0
Central Valley Storage	0	0	0	0
Lodi Storage	388	388	0	0
Gill Ranch Storage	33	33	33	33
Pipeline Balancing Withdrawal	0	0	0	0

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

	Actual for 5/15/2013	Actual for 5/16/2013	Actual for 5/17/2013*
COMPOSITE TEMPERATURE Historical Average for current day: 63.6	63.5	61.1	60.4
System Demand
On-System Demand	1819	1770	1666
Off-System Deliveries
SoCal Gas (KRS)	395	380	402
Southwest Gas	3	1	3
Kern River GT - HDL	0	0	0
Transmission Shrinkage	25	27	27
Injection
PG&E Storage Core, Market Center, and Pipeline Balancing	252	251	361
Wild Goose Storage	0	100	75
Central Valley Storage	28	28	28
Lodi Storage	0	0	0
Gill Ranch Storage	81	97	108
TOTAL SYSTEM DEMAND	2603	2653	2670
Supply
Interconnect Supply
Gas Transmission Northwest	1288	1181	1223
Ruby	706	794	774
California Production	62	62	62
SoCal Gas	0	0	0
Kern River GT - HDL	35	60	37
Kern River GT - Daggett	161	203	264
Southern Trails	2	52	0
El Paso Natural Gas	147	206	196
Transwestern	82	99	120
Withdrawal
PG&E Storage Core, Market Center, and Pipeline Balancing	0	0	0
Wild Goose Storage	44	0	0
Central Valley	0	0	0
Lodi Storage	124	63	54
Gill Ranch Storage	0	0	0
TOTAL SYSTEM SUPPLY	2650	2720	2728
INVENTORY CHANGE (Supply - Demand)	47	67	58
TOTAL CUSTOMER IMBALANCE	94	155	176

*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 5/15/2013	Actual for 5/16/2013	Actual for 5/17/2013*
Injection
PG&E Storage Core and Market Center	447	440	517
Wild Goose Storage	253	367	352
Central Valley Storage	28	28	28
Lodi Storage	310	320	341
Gill Ranch Storage	34	55	55
Pipeline Balancing Injection	86	80	114
Withdrawal
PG&E Storage Core and Market Center	201	190	190
Wild Goose Storage	276	278	278
Central Valley Storage	0	0	0
Lodi Storage	432	390	389
Gill Ranch Storage	33	33	33
Pipeline Balancing Withdrawal	0	0	0
Balancing Gas
Imbalance Gas in Storage**	3435	3608	3795

*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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