Bulletin Index 2007

We periodically post bulletins here to inform customers of developments within BC Hydro Transmission and/or the industry and/or to solicit feedback on policy changes. These announcements can be time sensitive, so please subscribe for the updates.

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Our Transmission Scheduling bulletins for 2007 are listed below. Select another year in the drop-down to view bulletins from the archive.

Title	Bulletin Date
Mixed Class Wheelthrough Requests	April 19, 5:12 p.m.
System Impact Studies	April 10, 4:20 p.m.
System Outage	April 3, 12:04 p.m.
Extended Windows for Good Friday	March 23, 11:47 a.m.
Preschedule TTC Derating	March 19, 10:41 a.m.
Firm TTC Methodology	March 1, 2:46 p.m.
System Outage is Over	February 12, 2:07 p.m.
System Outage	February 9, 5:21 p.m.
System Outage is Over	February 6, 3:02 p.m.
System Outage	February 6, 12:08 p.m.
Extended Windows for President's Day	February 3, 10:28 a.m.
WECC WIT	January 26, 3:38 p.m.
BCTC Test OASIS System	January 25, 9:15 a.m.
Winter Ratings of Circuits 5L29/5L31	January 17, 1:35 p.m.
LCS Customer Comments from October 26, 2006 Bulletin	January 12, 10:59 a.m.
LCS Customer Consultation – Venue Update	January 12, 9:03 a.m.
Preschedule Window Late Opening	January 10, 8:35 a.m.
Extended Windows for Martin Luther King's Birthday	January 4, 1:45 p.m.

Mixed Class Wheelthrough Requests

Posted on April 19 , 5:12 p.m.

Recently, we have noticed that some customers are unclear how to submit correct Mixed Class Wheelthrough requests on OASIS. When submitting a New TSR on OASIS, customers should select the Mixed Class Wheelthrough service type, which is distinguished by the word "MIXED" contained within the service type. The selection list of service types is located in the drop down menu under the column entitled Service. In addition, the POR and POD should be identified as BC.US.Border and AB.BC, respectively, while the Path should be identified as BPAT-AESO.

System Impact Studies

Posted on April 10 , 4:20 p.m.

System Impact Studies increasing the Firm ATC from BC to Alberta and from BC Interior to US have been posted.

System Outage

Posted on April 3 , 12:04 p.m.

Please be advised that there will be a short scheduled outage to TSS, OASIS and eTag systems from 13:50 to 14:05 PPT today, Tuesday, April 3, 2007. Please revert to Section 13 entitled Backup Procedures for Scheduling System Outages during this time period for both pre-schedule and real-time operations. We apologize for any inconvenience this may cause and thank you in advance for your cooperation regarding this matter.

Extended Windows for Good Friday

Posted on March 23 , 11:47 a.m.

Market Operations is pleased to visually clarify the opening of the extended windows for purchasing transmission during Good Friday, April 6, 2007.

Extended Windows for Good Friday (DOC,57KB)

Preschedule TTC Derating

Posted on March 19 , 10:41 a.m.

Please be advised that due to BPA constraint issues, the TTC posted on the BC to US path has been considerably decreased for all hours on March 20, 2007. In addition, the TTC posted on the US to BC path has also been reduced for hours ending 07-14 and 16-24 for the same date.

Firm TTC Methodology

Posted on March 1 , 2:46 p.m.

BCTC has received questions regarding its criteria for determining Point-to-Point Firm ATC for sales under OATT. BCTC wishes to provide the following explanation in response:

Generally, BCTC applies (n-1) criteria to determine Firm TTC, which is the level that can continue to be served immediately after a single permanent forced outage. This requirement applies to the system with all facilities in-service during all transfer conditions. In addition, the system with one element out-of-service for maintenance during lighter transfers should be able to accommodate the Firm TTC (RAS is permitted).

However, in cases where a transmission path consists of only a radial, single-circuit line, the outage of that line is not a factor in determining Firm TTC of that path.

For more information please see BCTC Business Practice Section 2.2.4 (http://www.bctc.com/NR/rdonlyres/D9F43D5D-959F-458A-8549-F88D108AE357/0/022006Mar1FinalSection2.pdf)

System Outage is Over

Posted on February 12 , 2:07 p.m.

Please be advised that BCTC Scheduling Application, OASIS and eTag were all back in service at 14:06 as stated in the previous bulletin. Please resume normal scheduling procedures as per our Business Practices for both real-time and pre-schedule.

System Outage

Posted on February 9 , 5:21 p.m.

Please be advised that there will be a short scheduled outage to TSS, OASIS and eTag systems from 13:55 to 14:10 PPT on Monday, February 12, 2007. Please revert to Section 13 entitled Backup Procedures for Scheduling System Outages during this time period for both pre-schedule and real-time operations. We apologize for any inconvenience this may cause and thank you in advance for your cooperation regarding this matter.

System Outage is Over

Posted on February 6 , 3:02 p.m.

Please be advised that BCTC Scheduling Application, OASIS and eTag were all back in service at 14:15 as stated in the previous bulletin. Please resume normal scheduling procedures as per our Business Practices for both real-time and pre-schedule.

System Outage

Posted on February 6 , 12:08 p.m.

Please be advised that there will be a short scheduled outage to TSS, OASIS and eTag systems from 13:55 to 14:15 PPT on Tuesday, February 6, 2007. Please revert to Section 13 entitled Backup Procedures for Scheduling System Outages during this time period for both pre-schedule and real-time operations. We apologize for any inconvenience this may cause and thank you in advance for your cooperation regarding this matter.

Extended Windows for President's Day

Posted on February 3 , 10:28 a.m.

Market Operations is pleased to visually clarify the opening of the extended windows for purchasing transmission during President's Day, Monday, February 19, 2007.

Extended Windows for President's Day (DOC, 57KB)

WECC WIT

Posted on January 26 , 3:38 p.m.

The New WECC Western Interchange Tool (WIT) was successfully released to WECC Balancing Authorities on January 24, 2007 at 8:00 AM PST. The WIT uses Implemented tags to create interchange schedules that can be viewed for check out between Balancing Authorities. Since the WIT uses the WECC Path Validation Registry, eTag authors may see an increase in warnings when tags are submitted that do not match this new registry. However, this does not necessarily mean the tag will be denied. eTag authors should contact BCTC if BCTC information is generating a warning on their tags. Refer to the WECC website for additional information, including Frequently Asked Questions, regarding the WIT.

Contact Raj Hundal if you have any questions regarding the WIT.

BCTC Test OASIS System

Posted on January 25 , 9:15 a.m.

BCTC recently purchased a new Test OASIS System from OATI, which will be used by BCTC and its customers. The login accounts and passwords that customers used to access the previous site will remain the same. The location of the new Test OASIS system is at http://bctctest.oatioasis.com/.

Winter Ratings of Circuits 5L29/5L31

Posted on January 17 , 1:35 p.m.

A report on the winter ratings of circuits 5L29 and 5L31 has been posted on BCTC's website.

LCS Customer Comments from October 26, 2006 Bulletin

Posted on January 12 , 10:59 a.m.

In the bulletin dated October 26 at 9:44 am, BCTC solicited feedback from customers on their experience regarding the utilization and effectiveness of its temporary Loss Compensation Service. The consolidated feedback is now available.

LCS Customer Consultation – Venue Update

Posted on January 12 , 9:03 a.m.

Further to the bulletin posted on December 15 at 11:20 am, BCTC would like to advise its transmission customers attending its Loss Compensation Service Customer Consultation on January 15 that due to renovations at the Hyatt Regency Hotel in Vancouver the Consultation will now be held in room Regency B on the third floor of the Hotel.

Preschedule Window Late Opening

Posted on January 10 , 8:35 a.m.

Preschedule window is late opening due to weather conditions. It should be open around 9:30 am. We apologize for any inconvenience this may cause.

Extended Windows for Martin Luther King's Birthday

Posted on January 4 , 1:45 p.m.

Market Operations is pleased to visually clarify the opening of the extended windows for purchasing transmission during Martin Luther King's Birthday, Monday, January 15, 2007.

Extended Windows for Martin Luther King's Birthday (DOC, 56KB)