BPA Transmission Outage & Interruption Information

Effective March 30, 2007, BPA Transmission Services (BPAT) has implemented its OASIS on OATI wesTTrans. Transmission availability is posted in OASIS. Decisions based on information on these pages are solely the visitor's responsibility. Transmission Services reserves the right to modify TTC, and ATC until 08:00 on the day of WECC Preschedule day. Changes to TTC and ATC after 08:00 of the WECC Preschedule day will be addressed in Real Time.

Direct questions or comments to TBL Path Capacity, BPA Transmission Services, 360-418-8496.

Related Information

Transmission System Events

Outage Plans with Capacity Estimates

Known Constraints

[Jump to COI, PDCI, WNI, ENI, MTNW, WOH, LaGrande, RATS, NJD, WOM, ELM, RP, PA, SOA, NOH, WOS]

Capacity Restrictions caused by forced outages on Real-Time are not posted below. Real-Time outages are communicated among affected Parties by means of WECC telenet messages and can be viewed in OASIS.

COI Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
01/04/10-03/12/10	HE 0800 on 01/04/10 - HE 1500 on 03/12/10	4150	3675	Colgate-Rio Oso 230kV Line
01/05/10-01/15/10	HE 0800 on 01/05/10 - HE 1600 on 01/15/10	4325	3675	Los Banos-Midway 2 500kV Line
01/19/10	HE 0900 - HE 1500	4250	3675	Round Mountain-Table Mountain 1 500kV Line Series Caps at Round Mountain
01/25/10	HE 0900 - HE 1500	3150	2500	Captain Jack-Olinda 500kV Line and Olinda-Tracy 500kV Line including Olinda 500kV North and South Bus
10/01/09-02/25/10	HE 0700 on 10/01/09 - HE 1600 on 02/25/10	4150	3675	CISO-Palermo-Colgate 230kV Line
11/04/09-03/31/10	HE 0100 on 11/04/09 - HE 2400 on 03/30/10	4800	3675	Winter Seasonal SOL Limits
11/16/09-11/25/09	HE 0900 on 11/16/09 - HE 1800 on 11/24/09	4325	3675	Table Mountain-Vaca 500kV Line Series Caps Bank 3 at Table Mountain
	HE 1900 on 11/16/09 - HE 1800 on 11/25/09	4325	3675
11/17/09-11/25/09	HE 0100 on 11/17/09 - HE 1800 on 11/24/09	4150	3675	Table Mountain Vaca 500kV Line Series Caps Bank 3 at Table Mountain In conjunction limit w/Palermo-Colgate (w/wo Colgate-Rio Oso)
	HE 1900 on 11/17/09 - HE 1800 on 11/25/09	4150	3675
11/21/09-11/25/09	HE 0700 on 11/21/09 - HE 2200 on 11/25/09	4050	3675	Tesla-Los Banos 1 500kV Line
11/23/07-12/31/18	HE 1300 on 11/23/07 - HE 2300 on 12/31/18	4800	3675	Path Rating (RTC)
12/04/09	HE 1000 - HE 1500	4275	2500	Gates-Midway 500kV Line
12/07/09-01/01/20	HE 0100 on 12/07/09 - HE 2400 on 12/31/19		2450	Studied Nomogram COI&PDCI S>N
12/07/09-09/30/11	HE 0100 on 12/07/09 - HE 2300 on 09/30/11	4333		Studied Nomogram COI&PDCI N>S
12/08/09	HE 0800 - HE 1700	4100	3675	Los Banos-Gates 1 500kV Series Capacitors at Gates
12/09/09	HE 0800 - HE 1700	4100	3675	Los Banos-Gates 2 500kV Series Capacitors at Gates
12/10/09	HE 0800 - HE 1700	4100	3675	Gates-Midway 500kV Series Capacitors at Gates
12/14/09-12/16/09	HE 0900 on 12/14/09 - HE 1800 on 12/16/09	4325	3675	Table Mountain-Vaca 500kV Series Capacitors at Vaca
12/16/09-12/18/09	HE 0800 on 12/16/09 - HE 1800 on 12/18/09	4325	3675	Los Banos-Midway 2 500kV Line
12/21/09	HE 0700 - HE 2000	3850	3675	Tesla-Metcalf 500kV Line
12/22/09	HE 0700 - HE 2000	3850	3675	Tesla-Metcalf 500kV Line

PDCI Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S) NOB	MW Limit (S-N) NOB	Reason for Path Reduction
01/04/10-03/12/10	HE 0800 on 01/04/10 - HE 1500 on 03/12/10	2990	2084	Colgate-Rio Oso 230kV Line
01/05/10-01/15/10	HE 0800 on 01/05/10 - HE 1600 on 01/15/10	2990	2084	Los Banos-Midway 2 500kV Line
01/18/10-01/22/10	HE 0900 on 01/18/10 - HE 1600 on 01/22/10	2990	2084	Gates-Panoche 1 230kV Line
01/19/10	HE 0900 - HE 1500	2990	2084	Round Mountain-Table Mountain 1 500kV Line Series Caps at Round Mountain
01/25/10	HE 0900 - HE 1500	2990	2084	Captain Jack-Olinda 500kV Line and Olinda-Tracy 500kV Line including Olinda 500kV North and South Bus
04/01/09-12/31/09	HE 2400 on 04/01/09 - HE 2400 on 12/30/09	2990	1070	Celilo Converters 3 and 4
07/31/09-12/01/09	HE 1000 on 07/31/09 - HE 2300 on 09/30/09	2990	975	LADWP-Station Work-Northbound flow restriction(Effective since 00:01 17DEC08)
	HE 2400 on 07/31/09 - HE 0900 on 08/26/09	2990	975
	HE 2400 on 07/31/09 - HE 2300 on 10/31/09	2990	975
	HE 2400 on 07/31/09 - HE 2400 on 11/30/09	2990	975
10/01/09-02/25/10	HE 0700 on 10/01/09 - HE 1600 on 02/25/10	2990	2084	CISO-Palermo-Colgate 230kV Line
11/04/09-03/31/10	HE 0100 on 11/04/09 - HE 2400 on 03/30/10	2990	2084	Winter Seasonal SOL Limits
11/09/09-11/30/09	HE 0700 on 11/09/09 - HE 1800 on 11/30/09	1086	1070	Celilo: Converters 3 and 4
11/16/09-11/25/09	HE 0900 on 11/16/09 - HE 1800 on 11/24/09	2990	2084	Table Mountain-Vaca 500kV Line Series Caps Bank 3 at Table Mountain
	HE 1900 on 11/16/09 - HE 1800 on 11/25/09	2990	2084
11/17/09-11/25/09	HE 0100 on 11/17/09 - HE 1800 on 11/24/09	2990	2084	Table Mountain Vaca 500kV Line Series Caps Bank 3 at Table Mountain In conjunction limit w/Palermo-Colgate (w/wo Colgate-Rio Oso)
	HE 1900 on 11/17/09 - HE 1800 on 11/25/09	2990	2084
11/21/09-11/25/09	HE 0700 on 11/21/09 - HE 2200 on 11/25/09	2990	2084	Tesla-Los Banos 1 500kV Line
11/23/07-01/01/19	HE 1400 on 11/23/07 - HE 2400 on 12/31/18	2990	2084	Path Rating
	HE 1800 on 11/23/07 - HE 2400 on 12/31/18		2084	ICLTS Load tripping capability beginning June 6 2004 and still in effect.
11/30/09-12/06/09	HE 0700 on 11/30/09 - HE 1700 on 12/06/09	2990	2084	CISO-Cottonwood-Vaca 230kV Line
	HE 0700 on 11/30/09 - HE 1800 on 12/06/09	2990	2084	Glenn-Vaca 230kV Line
12/04/09	HE 1000 - HE 1500	2990	1904	Gates-Midway 500kV Line
12/07/09-01/01/20	HE 0100 on 12/07/09 - HE 2400 on 12/31/19		1904	Studied Nomogram COI&PDCI S>N
12/07/09-09/30/11	HE 0100 on 12/07/09 - HE 2300 on 09/30/11	2712		Studied Nomogram COI&PDCI N>S
12/07/09-12/11/09	HE 0700 on 12/07/09 - HE 2100 on 12/11/09	2990	2084	Moss Landing-Los Banos 500kV Line
12/08/09	HE 0800 - HE 1700	2990	2084	Los Banos-Gates 1 500kV Series Capacitors at Gates
12/09/09	HE 0800 - HE 1700	2990	2084	Los Banos-Gates 2 500kV Series Capacitors at Gates
12/10/09	HE 0800 - HE 1700	2990	2084	Gates-Midway 500kV Series Capacitors at Gates
12/14/09-12/16/09	HE 0900 on 12/14/09 - HE 1800 on 12/16/09	2990	2084	Table Mountain-Vaca 500kV Series Capacitors at Vaca
12/14/09-12/19/09	HE 0700 on 12/14/09 - HE 1700 on 12/19/09	2990	2084	Moss Landing-Metcalf 500kV Line
12/16/09-12/18/09	HE 0800 on 12/16/09 - HE 1800 on 12/18/09	2990	2084	Los Banos-Midway 2 500kV Line
12/21/09	HE 0700 - HE 2000	2990	2084	Tesla-Metcalf 500kV Line
12/22/09	HE 0700 - HE 2000	2990	2084	Tesla-Metcalf 500kV Line

WNI Constraints

Northern Intertie Nomograms (updated Monday, November 16, 2009, 14:07)

(last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
07/31/11-01/01/20	HE 2400 on 07/31/11 - HE 2400 on 12/31/19	1571	1409	NI Studied Nomogram
08/01/10-07/31/11	HE 0100 on 08/01/10 - HE 2300 on 07/31/11	1571	1412	NI Studied Nomogram
11/06/09-11/20/09	HE 0100 - HE 1400 Daily		2000	PSE-Sedro Woolley: 230kV South Bus (Forces out Sedro Woolley-Bellingham 1 230kV Line)(Daily)
	HE 0100 Daily	1479
	HE 0200 Daily	1500
	HE 0300 - HE 0400 Daily	1522
	HE 0500 Daily	1479
	HE 0600 Daily	1416
	HE 0700 Daily	1300
	HE 0800 Daily	1240
	HE 0900 Daily	1188
	HE 1000 Daily	1288
	HE 1100 Daily	1216
	HE 1200 Daily	1235
	HE 1300 - HE 1400 Daily	1394
	HE 1500 Daily	1550
	HE 1600 Daily	1541
	HE 1700 Daily	1783
	HE 1800 Daily	1785
	HE 1900 Daily	1489
	HE 2000 Daily	1497
	HE 2100 Daily	1273
	HE 2200 Daily	1323
	HE 2300 Daily	1345
	HE 2400 Daily	1404
11/16/09-11/20/09	HE 0100 Daily	1296	725	PSANI ADVISORY HE01-HE24 and BPA-Chief Joseph-Monroe 1 500kV Line (Daily)
	HE 0200 Daily	1342	777
	HE 0300 - HE 0400 Daily	1388	829
	HE 0500 Daily	1296	725
	HE 0600 Daily	1111	516
	HE 0700 Daily	1035	436
	HE 0800 Daily	892	258
	HE 0900 - HE 1000 Daily	862	250
	HE 1100 Daily	835	243
	HE 1200 Daily	866	286
	HE 1300 Daily	857	318
	HE 1400 Daily	884	361
	HE 1500 Daily	884	361
	HE 1500 Daily	941	371
	HE 1600 Daily	919	329
	HE 1600 Daily	941	371
	HE 1700 Daily	919	329
	HE 1700 Daily	1049	245
	HE 1800 Daily	1002	124
	HE 1800 Daily	1049	245
	HE 1900 Daily	718	103
	HE 2000 Daily	744	145
	HE 2100 Daily	794	196
	HE 2200 Daily	883	325
	HE 2300 Daily	1062	514
	HE 2400 Daily	1195	690
11/19/09-11/20/09	HE 0100 on 11/19/09 on 11/19/09	1419	912	PSANI ADVISORY HE01 & HE05-HE24 Preschedule Forecast 11/19
	HE 0200 on 11/19/09 - HE 0400 on 11/19/09		995
	HE 0200 on 11/19/09 on 11/19/09	1453
	HE 0300 on 11/19/09 on 11/19/09	1439
	HE 0400 on 11/19/09 on 11/19/09	1417
	HE 0500 on 11/19/09 on 11/19/09	1419	912
	HE 0600 on 11/19/09 on 11/19/09	1351	746
	HE 0700 on 11/19/09 on 11/19/09	1659	632
	HE 0800 on 11/19/09 on 11/19/09	1669	519
	HE 0900 on 11/19/09 on 11/19/09	1653	523
	HE 1000 on 11/19/09 on 11/19/09	1648	560
	HE 1100 on 11/19/09 on 11/19/09	1626	602
	HE 1200 on 11/19/09 on 11/19/09	1619	638
	HE 1300 on 11/19/09 on 11/19/09	1569	650
	HE 1400 on 11/19/09 on 11/19/09	1562	686
	HE 1500 on 11/19/09 on 11/19/09	1476	706
	HE 1600 on 11/19/09 on 11/19/09	1924	623
	HE 1700 on 11/19/09 - HE 2000 on 11/19/09	1950
	HE 1700 on 11/19/09 on 11/19/09		510
	HE 1800 on 11/19/09 on 11/19/09		436
	HE 1900 on 11/19/09 on 11/19/09		374
	HE 2000 on 11/19/09 on 11/19/09		413
	HE 2100 on 11/19/09 on 11/19/09	1847	455
	HE 2200 on 11/19/09 on 11/19/09	1806	576
	HE 2300 on 11/19/09 on 11/19/09	1770	786
	HE 2400 on 11/19/09 on 11/19/09	1737	910
11/20/09-11/21/09	HE 0100 on 11/20/09 on 11/20/09	1474	876	PSANI ADVISORY: 11/20/09 HE01-HE18: Preschedule forecast for 11/20/2009
	HE 0200 on 11/20/09 - HE 0400 on 11/20/09	1506	966
	HE 0500 on 11/20/09 on 11/20/09	1474	876
	HE 0600 on 11/20/09 on 11/20/09	1410	696
	HE 0700 on 11/20/09 on 11/20/09	1804	568
	HE 0800 on 11/20/09 on 11/20/09	1829	397
	HE 0900 on 11/20/09 on 11/20/09	1818	395
	HE 1000 on 11/20/09 on 11/20/09	1810	437
	HE 1100 on 11/20/09 on 11/20/09	1801	436
	HE 1200 on 11/20/09 on 11/20/09	1791	477
	HE 1300 on 11/20/09 on 11/20/09	1783	476
	HE 1400 on 11/20/09 on 11/20/09	1771	517
	HE 1500 on 11/20/09 - HE 1600 on 11/20/09	1811	533
	HE 1700 on 11/20/09 - HE 1800 on 11/20/09	1950
	HE 1700 on 11/20/09 on 11/20/09		450
	HE 1800 on 11/20/09 on 11/20/09		334
	HE 1900 on 11/20/09 - HE 2400 on 11/20/09		1950
	HE 1900 on 11/20/09 on 11/20/09	1847
	HE 2000 on 11/20/09 on 11/20/09	1838
	HE 2100 on 11/20/09 on 11/20/09	1775
	HE 2200 on 11/20/09 on 11/20/09	1755
	HE 2300 on 11/20/09 on 11/20/09	1732
	HE 2400 on 11/20/09 on 11/20/09	1708
11/21/09-11/22/09	HE 0100 on 11/21/09 - HE 0500 on 11/21/09		1950	Preschedule forecast for 11/21/09
	HE 0100 on 11/21/09 on 11/21/09	1404
	HE 0200 on 11/21/09 on 11/21/09	1424
	HE 0300 on 11/21/09 - HE 0400 on 11/21/09	1444
	HE 0500 on 11/21/09 on 11/21/09	1424
	HE 0600 on 11/21/09 on 11/21/09	1384	1866
	HE 0700 on 11/21/09 - HE 2400 on 11/21/09		1950
	HE 0700 on 11/21/09 on 11/21/09	1720
	HE 0800 on 11/21/09 on 11/21/09	1731
	HE 0900 on 11/21/09 on 11/21/09	1746
	HE 1000 on 11/21/09 on 11/21/09	1754
	HE 1100 on 11/21/09 on 11/21/09	1760
	HE 1200 on 11/21/09 - HE 1300 on 11/21/09	1755
	HE 1400 on 11/21/09 on 11/21/09	1750
	HE 1500 on 11/21/09 on 11/21/09	1752
	HE 1600 on 11/21/09 on 11/21/09	1759
	HE 1700 on 11/21/09 on 11/21/09	1907
	HE 1800 on 11/21/09 on 11/21/09	1930
	HE 1900 on 11/21/09 on 11/21/09	1838
	HE 2000 on 11/21/09 on 11/21/09	1821
	HE 2100 on 11/21/09 on 11/21/09	1769
	HE 2200 on 11/21/09 on 11/21/09	1755
	HE 2300 on 11/21/09 on 11/21/09	1732
	HE 2400 on 11/21/09 on 11/21/09	1714
11/22/09-11/23/09	HE 0100 on 11/22/09 - HE 2400 on 11/22/09		1950	Preschedule forecast for 11/22/09
	HE 0100 on 11/22/09 on 11/22/09	1348
	HE 0200 on 11/22/09 on 11/22/09	1393
	HE 0300 on 11/22/09 - HE 0400 on 11/22/09	1415
	HE 0500 on 11/22/09 on 11/22/09	1393
	HE 0600 on 11/22/09 on 11/22/09	1370
	HE 0700 on 11/22/09 on 11/22/09	1713
	HE 0800 on 11/22/09 on 11/22/09	1724
	HE 0900 on 11/22/09 on 11/22/09	1737
	HE 1000 on 11/22/09 on 11/22/09	1746
	HE 1100 on 11/22/09 - HE 1200 on 11/22/09	1750
	HE 1300 on 11/22/09 on 11/22/09	1756
	HE 1400 on 11/22/09 on 11/22/09	1750
	HE 1500 on 11/22/09 on 11/22/09	1756
	HE 1600 on 11/22/09 on 11/22/09	1763
	HE 1700 on 11/22/09 on 11/22/09	1830
	HE 1800 on 11/22/09 on 11/22/09	1856
	HE 1900 on 11/22/09 on 11/22/09	1796
	HE 2000 on 11/22/09 on 11/22/09	1789
	HE 2100 on 11/22/09 on 11/22/09	1774
	HE 2200 on 11/22/09 on 11/22/09	1756
	HE 2300 on 11/22/09 on 11/22/09	1730
	HE 2400 on 11/22/09 on 11/22/09	1709
11/23/07-01/01/19	HE 1800 on 11/23/07 - HE 2400 on 12/31/18	2850	2000	Path Rating
11/23/09-11/24/09	HE 0100 on 11/23/09 - HE 2400 on 11/23/09		1950	Preschedule forecast for 11/23/09
	HE 0100 on 11/23/09 on 11/23/09	1362
	HE 0200 on 11/23/09 - HE 0400 on 11/23/09	1384
	HE 0500 on 11/23/09 on 11/23/09	1340
	HE 0600 on 11/23/09 - HE 2100 on 11/24/09	1700	2000	BCTC-Nicola-Ingledow 500kV Line (5L81)
	HE 0600 on 11/23/09 on 11/23/09	1229		Preschedule forecast for 11/23/09
	HE 0700 on 11/23/09 - HE 2400 on 11/23/09	1650
11/24/09-11/25/09	HE 0100 on 11/24/09 - HE 2400 on 11/24/09		1950	Preschedule Forecast 11/24
	HE 0100 on 11/24/09 on 11/24/09	1423
	HE 0200 on 11/24/09 - HE 0400 on 11/24/09	1440
	HE 0500 on 11/24/09 on 11/24/09	1405
	HE 0600 on 11/24/09 on 11/24/09	1317
	HE 0700 on 11/24/09 - HE 2200 on 11/24/09	1650
	HE 2300 on 11/24/09 on 11/24/09	1950
	HE 2400 on 11/24/09 on 11/24/09	1913
11/25/09-11/26/09	HE 0100 on 11/25/09 - HE 2400 on 11/25/09		1950	Preschedule Forecast 11/25
	HE 0100 on 11/25/09 on 11/25/09	1395
	HE 0200 on 11/25/09 - HE 0400 on 11/25/09	1428
	HE 0500 on 11/25/09 on 11/25/09	1395
	HE 0600 on 11/25/09 on 11/25/09	1313
	HE 0700 on 11/25/09 - HE 2300 on 11/25/09	1950
	HE 2400 on 11/25/09 on 11/25/09	1909
11/30/09	HE 0800	742		PSE-Bothell-Sammamish 1 230kV Line; and BPA-Tacoma-Covington 2 230kV Line including Christopher Tap and Covington East and West Aux Bus and PCB A-72 & A-88
	HE 0800 - HE 1500		2000
	HE 0900 - HE 1000	663
	HE 1100	643
	HE 1200	683
	HE 1300	663
	HE 1400	701
	HE 1500	720
11/30/09-12/01/09	HE 0100 on 11/30/09 on 12/01/09	1087	1883	PSE-Bothell-Sammamish 1 230kV Line;and SCL-Massachusetts-Union-Broad Street 230kV Line
	HE 2400 on 11/30/09 on 11/30/09	1025	1747
11/30/09-12/04/09	HE 0100 Daily	1160		PSE-Bothell-Sammamish 1 230kV Line(Daily)
	HE 0200 - HE 0400 Daily	1246
	HE 0500 Daily	1160
	HE 0600 Daily	1030
	HE 0700 Daily	861
	HE 0800 - HE 1700 Daily		2000
	HE 0800 Daily	742
	HE 0900 Daily	664
	HE 1000 - HE 1100 Daily	644
	HE 1200 Daily	683
	HE 1300 Daily	664
	HE 1400 Daily	703
	HE 1500 Daily	722
	HE 1600 Daily	684
	HE 1700 Daily	553
	HE 1800 Daily	440
	HE 1900 Daily	493
	HE 2000 Daily	532
	HE 2100 Daily	626
	HE 2200 Daily	703
	HE 2300 Daily	878
	HE 2400 Daily	1035
12/07/09-08/01/10	HE 0100 on 12/07/09 - HE 2400 on 07/31/10	1571	1452	NI Studied Nomogram
12/07/09-12/11/09	HE 0700 Daily	611	1005	PSANI ADVISORY HE06-HE18 12/7-12/11 BPA-Chief Joseph-Snohomish 4 345kV Line(Daily)
	HE 0800 Daily	475	749
	HE 0900 Daily	430	663
	HE 1000 - HE 1100 Daily	408	719
	HE 1200 Daily	453	800
	HE 1300 Daily	431	858
	HE 1400 Daily	476	933
	HE 1500 - HE 1600 Daily	454	994
	HE 1700 Daily	258	800
	HE 1800 Daily	127	604

ENI Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
02/01/08-01/01/19	HE 0100 on 02/01/08 - HE 2300 on 08/24/09	400	400	Path Rating
	HE 2400 on 02/01/08 - HE 2400 on 12/31/18	400	400
11/23/09-11/24/09	HE 0600 on 11/23/09 - HE 2100 on 11/24/09	400	400	BCTC-Nicola-Ingledow 500kV Line (5L81)

MTNW Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (E-W)	MW Limit (W-E)	Reason for Path Reduction
10/31/09-01/01/19	HE 2400 on 10/31/09 - HE 2400 on 12/31/18		1020	WOG Limits
11/04/09-03/31/10	HE 0100 on 11/04/09 - HE 2400 on 03/30/10	2200		Winter System Operating Limits
	HE 0100 on 11/04/09 - HE 2400 on 03/30/10		1350
	HE 0100 on 11/04/09 - HE 2400 on 03/30/10	2000		WOG Winter Limit
11/23/07-01/01/19	HE 0800 on 11/23/07 - HE 2400 on 12/31/18		1350	Path Rating
	HE 2000 on 11/23/07 - HE 0700 on 08/21/09		1350
	HE 2000 on 11/23/07 - HE 2400 on 12/31/18	2000
12/07/09-12/18/09	HE 0800 on 12/07/09 - HE 1400 on 12/18/09	1625		BPA: Hatwai-Dworshak 1 500kV Line

WOH Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (E-W)	MW Limit (W-E)	Reason for Path Reduction
10/31/08-01/01/19	HE 2400 on 10/31/08 - HE 2400 on 12/31/18	4250		West of Hatwai Path Rating

ID-NW @ LaGrande Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (E-W)	MW Limit (W-E)	Reason for Path Reduction
11/16/09-11/20/09	HE 0700 on 11/16/09 - HE 1700 on 11/20/09	363	300	IPC-Hines-West John 138kV Line (435)
11/23/07-01/01/19	HE 1800 on 11/23/07 - HE 2400 on 12/31/18	413	350	Path Rating
11/23/09-11/24/09	HE 0700 on 11/23/09 - HE 2400 on 11/23/09	363	300	IPC-Hines-West John 138kV Line (435)
12/07/09-12/11/09	HE 1100 on 12/07/09 - HE 1500 on 12/11/09	363	300	Riley-Harney section of Brasada-Harney 1 115kV Line

Malin-Hilltop Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
11/04/09-03/31/10	HE 0100 on 11/04/09 - HE 2400 on 03/30/10	300	300	Winter Seasonal SOL Limits
11/28/07-01/01/19	HE 0100 on 11/28/07 - HE 2400 on 12/31/18	300	300	Path Rating

North of John Day Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
11/04/09-03/31/10	HE 0100 on 11/04/09 - HE 2400 on 03/30/10	7700		Winter Seasonal SOL Limits
11/23/07-01/01/19	HE 1700 on 11/23/07 - HE 2400 on 12/31/18	7800		NOJDAY Path Rating

West of McNary Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (E-W)	MW Limit (W-E)	Reason for Path Reduction
11/23/07-01/01/19	HE 1900 on 11/23/07 - HE 2400 on 12/31/18	2870		Path Rating (RTC)

Echo Lake - Monroe Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
11/23/07-01/01/19	HE 1800 on 11/23/07 - HE 2400 on 12/31/18	1500		Path Rating

Raver - Paul Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
11/23/07-01/01/19	HE 1800 on 11/23/07 - HE 2400 on 12/31/18	1625		Path Rating
11/30/09-12/08/09	HE 0800 on 11/30/09 - HE 1500 on 12/08/09	1360		Tacoma-Covington-Christopher Tap 2 230kV Line

Paul - Allston Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
05/27/08-01/01/19	HE 2400 on 05/27/08 - HE 2400 on 12/31/18	2250		Path Rating
12/01/09-12/02/09	HE 0800 on 12/01/09 - HE 1500 on 12/02/09	1430		Longview-Chehalis 1 & 3 230kV Line
12/03/09-12/04/09	HE 0800 on 12/03/09 - HE 1500 on 12/04/09	1430		Longview 230kV South Main Bus (Open ending Longview-Chehalis 1 & 3 230kV Line)

South of Allston Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
08/12/09-01/01/11	HE 2400 on 08/12/09 - HE 2300 on 08/17/09	3100		All lines in service (Summer Allocation BPAT: 2186 PGE: 705 PAC: 209)
	HE 2400 on 08/17/09 - HE 2300 on 10/31/09	3100
	HE 2400 on 10/31/09 - HE 2400 on 12/31/10	3100
08/12/09-01/01/20	HE 1400 on 08/12/09 - HE 2300 on 08/17/09	2910		Studied limit (Summer Allocation BPAT: 2052 PGE: 662 PAC: 196)
	HE 2400 on 08/17/09 - HE 2400 on 12/31/19	2910
12/06/09	HE 0900 - HE 1600	910		Keeler-Allston 1 500kV Line(Winter Allocation BPAT: 574 PGE: 228 PAC: 108)

North of Hanford Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (N-S)	MW Limit (S-N)	Reason for Path Reduction
11/23/07-01/01/19	HE 1800 on 11/23/07 - HE 2400 on 12/31/18	4410		Year Round OTC for All Facilities in Service
	HE 1800 on 11/23/07 - HE 2400 on 12/31/18	4100		NOHAN limit

West of Slatt Constraints (last modified Friday, November 20, 2009, 14:28) Daily/Hourly Limits

Date(s)	Duration	MW Limit (E-W)	MW Limit (W-E)	Reason for Path Reduction
05/31/08-01/01/19	HE 2400 on 05/31/08 - HE 2400 on 12/31/18	4100		Path Rating

For questions or comments, please contact TBL Path Capacity, BPA Transmission Services, 360-418-8496