OATI OASIS

Please take notice that Avista Corporation has posted a revised CBMID and TRMID to become effective on April 1, 2013. The revised documents can be found in the ATC Information folder on the left portion of this page. Please contact Kenneth Dillon at (509) 495-4436 with any questions.

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ATTACHMENT K and NETWORK OPERATING COMMITTEE MEETING DECEMBER 14, 2012 New Page 1
Please take notice that Avista Corporation will hold its Attachment K Local Planning Process "Year Two" Local Transmission Plan Update Meeting ("Meeting #3") on December 14, 2012 in the Avista corporate headquarters building at 1411 East Mission Avenue, Spokane, Washington. The meeting will take place starting at 9:30 am until all required material has been covered. All customers and interested persons are invited to attend. The 2012 Local Planning Report Update has been posted on the Avista OASIS under System Planning/Studies -> Attachment K Materials folder and may be available by email (subject to confidentiality requirements).

This year's Attachment K meeting will be held in conjunction with Avista's Network Operating Committee meeting. The Network Operating Committee meeting will contain more information applicable to Avista's Network Intergration Transmission Service customers and Interconnection Customers, and is expected to begin around 10:30 am. Participation will be limited to current Network or Native Load transmission customers or Interconnection Customers.

Attendees are requested to RSVP, with number of participants, by sending an email referencing Attachment K Meeting to transmission.services@avistacorp.com prior to the meeting. Please feel free to contact Kenneth Dillon at (509) 495-4436 or kenny.dillon@avistacorp.com if you have any questions.

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UPDATE !!! As of 8/21/2012 New Page 1
On 8/28/12, Avista's OASIS website will be unavailable from 1515 to 1645 PPT due to OATI Private Cloud Migration. Please take necessary steps to reserve needed transmission prior to the outage. Emergency Transmission Service Requests will be accepted verbally by calling 509-495-4105. A reminder of this outage will be posted on the WECC Net the day of the outage.

Thank you.

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UPDATE !!! As of 6/26/2012 New Page 1
Today, 6/26/12, Avista's OASIS website will be down from 1515 to 1645 PPT due to OATI Maintenance. Please take necessary steps to reserve needed transmission prior to the outage. We will be posting a message on WECC Net as well, but will send another message when the outage is complete and our website is available.

Thank you.

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UPDATE !!! As of 6/4/2012 New Page 1
Please take notice that Avista is filing revised ancillary service schedules with FERC.

Avista is filing: (i) revised Schedules 4 and 9 to change the Mid-C index used in the Hourly Pricing Proxy, (ii) revised Schedules 5 and 6 to clarify that operating reserves apply to generation exported from the Avista Control Area, and (iii) a new Schedule 3-A � Generator Regulation and Frequency Response Service.

Any questions regarding this filing may be directed to transmission.services@avistacorp.com.

A copy of this filing may be found in the "FERC Filings" folder.

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UPDATE !!! As of 5/30/2012 New Page 1
FERC Order 1000 - Avista is coordinating its Order 1000 compliance efforts through its membership in ColumbiaGrid. The next stakeholder meeting updating these compliance efforts is on June 12, 2012 from 10:00 AM to 4:00 PM at ColumbiaGrid's office at 8338 NE Alderwood Road, Suite 140, Portland, OR 97220. Phone and internet access will be provided. Further information can be found at ColumbiaGrid's website at:

http://www.columbiagrid.org/1000-calendar.cfm

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UPDATE !!! As of 4/4/2012 New Page 1
On April 10, 2012 from 16:15 to 17:45, OATI's Private Cloud Migration will disable Avista Transmission's Webtrans software.

During this time Webtag, WIT, WebOASIS, and WebSAS will all be available. However, Webtrans is where TSR and Tag validations occur and we are asking that PSE's submit as many of their TSR's and Tags, if possible, prior to the start time of the outage as we will be in a manual validation mode.

We will monitor TSR's and Tags via WebOASIS and Webtag until the mirgration is complete. A notification will be sent before and after the migration via the WECC.net.

Should you have any questions or concerns, please do not hesitate to contact the OASIS Desk at 509-495-4819 or via email at OASIS@avistacorp.com.

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UPDATE !!! As of 12/2/2011 New Page 1
Avista Transmission has re-posted a draft Business Practice regarding deferral of Transmission Service for an additional 30-day comment period. If you have any comments, please submit them to transmission.services@avistacorp.com by December 31, 2011. Please contact Kenneth Dillon if you have any questions.

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UPDATE !!! As of 11/16/2011 New Page 1
We have a new procedure for coordinating outages.

The new email address is:
transmissionoutages@avistacorp.com

The contact name and number:
Chief System Operator
(509) 495-4508

Please remove any prior email addresses for future outages.

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UPDATE !!! As of 11/8/2011 New Page 1
Please take notice that Avista Corporation will hold its Attachment K Local Planning Process "Year One" Review of Study Results/Draft Transmission Plans Meeting ("Meeting #2") on December 15, 2011 in the Avista corporate headquarters building at 1411 East Mission Avenue, Spokane, Washington. The meeting will take place starting at 9:30 am until all required material has been covered (approximatly one hour).

The Review of Study Results/Draft Transmission Plans Meeting is the meeting held at the end of Year 1 of the Avista Local Planning Process (as described in Attachment K to Avistas Open Access Transmission Tariff). This meeting has been established to discuss the results of the Local Planning Report and to provide stakeholders the opportunity to provide comment on the Draft Local Planning Report. A draft of the report will be posted prior to the meeting for participant review.

This year's 2nd meeting will not be held in conjunction with Avista's Network Operating Committee meeting. A Network Operating Committee meeting is anticipated to be held in the spring of 2012, and will contain more information applicable to Avista's Network Intergration Transmission Service customers and Interconnection Customers.

Attendees are requested to RSVP, with number of participants, by sending an email referencing Attachment K Meeting to transmission.services@avistacorp.com prior to the meeting.

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UPDATE !!! As of 10/31/2011 New Page 1
Avista Transmission has posted a draft Business Practice regarding deferral of Transmission Service. If you have any comments, please submit them to transmission.services@avistacorp.com by November 30, 2011. Please contact Kenneth Dillon if you have any questions.

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UPDATE !!! As of 10/20/2011 New Page 1
It was discovered today by Avista Transmission that the 2011 Study Metrics posting in the Performance Metrics folder was either inadvertantly deleted or incorrectly posted. The 2011 Study Metrics document has been reposted including 3rd quarter results. Please direct questions to Kenneth Dillon at kenny.dillon@avistacorp.com or (509) 495-4436.

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UPDATE !!! As of 7/26/2011 New Page 1
Avista has posted a How to Guide for using the ColumbiaGrid OASIS Portal, over which transmission customers can make transmission requests over the Avista, BPA and PSE transmission systems through a single location. The How to Guide can be found under the ColumbiaGrid folder to the left. Please direct questions to Kenneth Dillon at kenny.dillon@avistacorp.com or (509) 495-4436.

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UPDATE !!! As of 7/11/2011 New Page 1
Please take notice that Avista Corporation will hold its Attachment K Local Planning Process "Year One" Study Development Meeting on August 2, 2011 in the Avista corporate headquarters building at 1411 East Mission Avenue, Spokane, Washington. The meeting will take place startring at 1:00 pm until all required material has been covered (approximatly one hour).

The Study Development Meeting is the meeting held at the start of Year 1 of the Avista Local Planning Process (as described in Attachment K to Avistas Open Access Transmission Tariff). This meeting has been established to allow participants to provide input into assumptions for the Local Planning Report.

Attendees are requested to RSVP, with number of participants, by sending an email referencing Attachment K Meeting to transmission.services@avistacorp.com prior to the meeting.

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UPDATE !!! As of 7/1/2011 New Page 1
BPA Transmission Services (BPAT) and the Colstrip transmission owners (Avista Corporation, NorthWestern Energy, PacifiCorp, Portland General Electric Company, and Puget Sound Energy, Inc.) are establishing new reservation and scheduling points to facilitate the termination of the exchange provision in the Montana Intertie Agreement effective October 1, 2011. Tagging protocols are also changing for east to west transactions on the Montana Intertie.

Additional information can be found under the document titled "Montana Intertie Scheduling Practices" found in the Customer News folder.

If you have any questions, please contact Warren Clark at (509) 495-4186.

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UPDATE !!! As of 6/9/2011 New Page 1
Effective June 8, 2011, the ColumbiaGrid OASIS Portal implemented new and enhanced functionality that enables Transmission Customers (TCs) to submit TSRs for short term transmission service to multiple participating TSPs (currently BPAT, AVAT, or PSEI) via a single OASIS point of access. TCs who are eligible customers with the participating TSPs may select any posted POR/POD combination to determine the ATC and pricing on alternative routes (transmission paths) across one or more of the TSPs. Once a route is selected, the TC may use the Portal to simultaneously submit the TSR(s) to each affected TSP providing transmission service on the selected route.

The participating TSP(s) will continue to be responsible for processing TSRs as described in their individual business practice and OATT, and invoicing TCs at each TSPs tariff rate for TSRs submitted through the Portal. Participating TSPs will also remain responsible for registering TCs as eligible customers. The ColumbiaGrid OASIS Portal is provided as a free service.

To get started, log-on to the ColumbiaGrid OASIS Portal site at OATI�s wesTTrans OASIS: http://www.oasis.oati.com/cwo_default.htm or http://www.oasis.oati.com/COGR/index.html. Users may also access the CG TSR creation wizard by clicking on the blue CG Deals button on the Avista OASIS header.

If you have any questions, do not hesitate to contact Kenneth Dillon at (509) 495-4436.

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UPDATE !!! As of 2/10/2011 New Page 1
Avista is currently in the process of updating registries in the Western Interchange Tool (WIT), and paths and postings in its OATI WebTrans and WebOASIS systems to meet compliance with FERC Orders 676 and 729.

Order 676 incorporates NAESB Business Practices V2.1, which requires Transmission Providers to list folders and documents on OASIS in a certain order and manner. Avista will be updating its document folders and document postings on the left side of its OASIS page from February 9, 2011 through April 1, 2011. During that time, additional folders and files may be posted.

Order 729 adopts the MOD Standards, and requires that Transmission Providers be compliant by April 1, 2011. In order to become compliant with the applicable MOD Standards, Avista has begun the process of reorganizing and restricting its paths, most notably its interchanges with the Bonneville Power Administration. Accordingly, the current interchange points with BPA at Hatwai, BellWestside, Benton and AddyKettle will be combined into one single point, AVA.BPAT. To accomplish this change, you will see adjustments to the WIT registry between now and March 1, 2011. During the month of March, all four existing BPA points will remain enabled, and the new AVA.BPAT point will also be available. Customers will be able to purchase monthly transmission only on the AVA.BPAT point starting March 1, 2011 for service taken April 1, 2011 and beyond.

If you have any questions, do not hesitate to contact Kenneth Dillon at (509) 495-4436 or the Transmission Preschedulers.

This notice has also been posted in the Customer News folder as 2-10-2011 OASIS Updates.

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UPDATE !!! As of 11/19/2010 New Page 1
A meeting notice for the TAC group of the IRP has been posted in the Integrated Resource Planning folder on the left side of this page.

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UPDATE !!! As of 10/21/2010 New Page 1
Avista Corporation will be hosting a Network Operating Committee Meeting on Thursday, October 28th beginning at 9:00 am. This meeting is open to all Network Integration Transmission Service customers, as well as LSE's who are interconnected with the Avista System and served via Network Transmission Service.
Please feel free to contact Kenny Dillon at (509) 495-4436 if you have any questions.

MEETING DOCUMENTS HAVE BEEN POSTED UNDER THE CUSTOMER NEWS FOLDER ON THE LEFT SIDE OF THIS PAGE

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UPDATE !!! As of 9/8/2010 New Page 1
Please take notice that Avista Corporation has posted a draft redline copy of its revised Business Practices for comment for a 30 day period beginning September 8, 2010.
Please provide any comments or changes you might have to transmission.services@avistacorp.com by COB on October 15, 2010. Feel free to contact Kenny Dillon at (509) 495-4436 if you have any questions.

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UPDATE !!! As of 8/2/2010 New Page 1
Please take notice that Avista Corporation (�Avista�) will hold its Attachment K Local Planning Process "Year Two" Local Transmission Plan Update Meeting on September 13, 2010 in the Avista corporate headquarters building at 1411 East Mission Avenue, Spokane, Washington. The meeting will take place from 10:00 am until all required material has been covered (approximatly one hour).
The Local Transmission Plan Update Meeting is the meeting held in Year 2 of the Avista Local Planning Process (as described in Attachment K to Avista�s Open Access Transmission Tariff). This meeting has been established to update Interested Stakeholders on projects presented in the Local Planning Report.
Attendees are requested to RSVP, with number of participants, by sending an email referencing Attachment K Meeting to transmission.services@avistacorp.com prior to the meeting.

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UPDATE !!! As of 2/19/2010 New Page 1
Avista is currently planning to revise its Tariff to incorporate ancillary service schedules that recognize the costs of regulation and other ancillary services associated with the addition of new generation resources within Avista�s balancing authority area, including variable or intermittent generation. Transmission service with Avista will be pursuant to the terms and conditions of Avista�s FERC-accepted Tariff, or a special contract filed with and accepted by FERC, as such terms exist at the time such service is provided and shall be subject to any future FERC-accepted amendments or modifications to such terms.
Please see the Notice document in the Tariff Folder for additional information

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UPDATE !!! As of 12/23/2009 New Page 1
Please take notice, effective January 1, 2010, that FERC accepted Avista�s filing for increased transmission service rates under Avista�s Open Access Transmission Tariff, FERC Electric Tariff, Fifth Revised Volume No. 8. Avista�s new rates resulted in a 73% higher rate for Network Integration Transmission Service (NITS) and a 43% higher rate for Point-to-Point Transmission (PTP) Service.
Please see the Transmission Offering document in the Provider Information Folder for information on the new PTP rates. For information on the FERC filing please see the documents in the FERC Filing/2009 Rate Filing folder.

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UPDATE !!! As of 12/9/2009 New Page 1
Please take notice that Avista Corporation (�Avista�) will hold the second of its Attachment K Local Planning Process meetings on December 21, 2009 in the Avista corporate headquarters building at 1411 East Mission Avenue, Spokane, Washington. The meeting will take place from 1:00 pm until all required material has been covered.
The Review of Study Results/Draft Transmission Plans Meeting is the second of two meetings in Year 1 of the Avista Local Planning Process (as described in Attachment K to Avista�s Open Access Transmission Tariff). This meeting has been established to provide Interested Stakeholders an opportunity to provide comment on the draft Local Planning Report, and to be presented w/ Avista�s planned projects for the planning horizon. Input from Interested Stakeholders will be incorporated into the final Local Planning Process.
Attendees are requested to RSVP, with number of participants, by sending an email referencing Attachment K Meeting #2 to transmission.services@avistacorp.com prior to the meeting.

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UPDATE !!! As of 11/10/09 New Page 1
On October 29, 2009, Avista filed a request with the Federal Energy Regulatory Commission to increase Avista's transmission rates under its Open Access Transmission Tariff. Avista requests an increase in its point-to-point transmission service rate from $1.40/kW-month to $2.00/kW-month and an increase in its annual transmission revenue requirement from $28.6 million per year to $49.4 million per year. Copies of Avista's transmission rate case filing are available in the "FERC Filings" folder under the sub-folder "." Any questions regarding this filing may be directed to Jeff Schlect, Manager, Transmission Services at 509-495-4851.

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UPDATE !!! As of 10/23/09 New Page 1
NorthWestern Energy, Avista Corporation, PacifiCorp, Portland General Electric Company, Puget Sound Energy and the Bonneville Power Administration commissioned an exploratory study (Colstrip 500 kV Upgrade Exploratory Study) to evaluate the potential for upgrading the Colstrip Transmission System and other Pacific Northwest Transmission Facilities to determine the increased transmission capacity from Colstrip to the Mid-C without constructing new transmission lines. If you would like to request a copy of the study report, please refer to the "Colstrip Study Notice (10/21/09)" document posted in the System Planning/Studies folder.

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UPDATE !!! As of 06/17/09 New Page 1
ATC is currently available on Avista System's BPATPUD path (an Avista path to/from MIDCRemote in lieu of using the MIDC path). If you are scheduling with BPAT at MIDCRemote, no additional scheduling charges will apply with the purchase of transmission on Avista's System's BPATPUD paths (such as AVAT.NWMT > BPATPUD or BPATPUD > AVAT.NWMT). Scheduling may also be arranged to MIDC via BPATPUD with other MIDC participants. Please see the BPATPUD Reservations and Scheduling documents in the Customer News Folder for additional information!
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NEW !!! As of 05/28/09 - Hot Springs/Burke Scheduling Changes New Page 1
Effective June 1, 2009, Avista, Bonneville, Idaho Power, NorthWestern and PacifiCorp have agreed to implement new capacity management procedures associated with the use of the Hot Springs POR/POD, the Amps Line, and the Montana-to-Northwest Path.
Materials regarding these capacity management procedures have been posted and may be found in the Customer News folder � Hot Springs Scheduling Changes � June 2009 folder. Within this folder you will find �Scheduling News/Tagging Examples,� the Amps �Capacity Management Agreement,� and the �Hot Springs � FAQ� document.
Avista�s historical HSTP POR/POD and BURKE POR/POD have been combined into a single POR/POD named AVAT.NWMT. A new diagram identifying Avista�s Posted Paths may be found under the Provider Information folder titled �AVA OASIS Stick Diagram � June 2009.�
The effective date for schedules using the new POR/POD of AVAT.NWMT is June 2.
Pre-schedule will be handled as follows:
On Monday, June 1, pre-scheduling will take place for June 2. The new POR/POD�s (AVAT.NWMT, BPAT.NWMT) will be used. Pre-schedule for June 1 will be this Friday, May 29, and will use the existing POR/POD�s.
Real Time will be handled as follows:
Effective hour beginning 00:00, hour ending 01:00 PDT on June 2, real time TSR�s and Tags will use the new Paths and POR/POD�s. Real Time for May 30, May 31, and June 1 will use existing POR/POD�s.
For additional information, please contact Warren Clark at 509-495-4186, Cathy Williams or John Underwood at 509-495-4819.
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NEW !!! As of 05/01/09 New Page 1
Intra-Hour Scheduling Proposed Business Practice
Avista has posted in the Business Practices/Proposed Business Practices folder a document titled Draft BP for Intra-Hour Scheduling (5-1-09) for 30 day comment. This Business Practice covers the Intra-Hour purchase of transmission service, and the associated process for scheduling that transmission. The Business Practice is being developed in coordination w/ the Joint Initiative, and through Avista's membership in ColumbiaGrid. If you have any questions or comments to provide on the draft Business Practices, please contact Kenny Dillon at (509) 495-4436 or kenny.dillon@avistacorp.com.
Transmission Rate Review
Avista is currently in the process of reviewing its FERC jurisdictional transmission rates under its Open Access Transmission Tariff and currently plans to submit a request to FERC to change such rates prior to the end of 2009. In preparation for this filing, Avista may seek input from active transmission customers and FERC. If you have any questions, please contact Jeff Schlect, Manager, Transmission Services at (509) 495-4851 or transmission.services@avistacorp.com.
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NEW !!! As of 03/27/09 New Page 1
INTERIM Tagging Protocol for Transactions through Hot Springs between NWMT and BPAT
Please Note: There is not an �Interim� tagging protocol when AVAT is a transmission provider for schedules using Hot Springs as a POR/POD. A change to these tag templates will not be necessary.
Effective April 1, 2009 and continuing through May 31, 2009, Avista, Bonneville, Idaho Power, NorthWestern and PacifiCorp are implementing an INTERIM tagging protocol for transactions scheduled through the Hot Springs POR/POD. Please see The �Customer News� folder to the left, and reference the �Hot Springs Interim Tagging Protocol� item for tagging examples for this interim tagging approach. This tagging protocol is being employed on a temporary basis to facilitate compliance with applicable reliability standards prior to implementation of a more comprehensive series of capacity management procedures. Therefore, tag authors need to adjust their templates using the structure identified in the above referenced tagging examples. Such tags will need to be submitted on a Preschedule basis on March 31, 2009 for flow on April 1, 2009.
Effective June 1, 2009, Avista, Bonneville, Idaho Power, NorthWestern and PacifiCorp have agreed to implement new capacity management procedures associated with the use of the Hot Springs POR/POD, the Amps Line, and the Montana-to-Northwest Path. Materials regarding these capacity management procedures and associated tagging protocols, including tagging examples, are being developed and will be provided for review prior to implementation.
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NEW !!! As of 03/16/09 New Page 1
Effective March 16, 2009, Avista has posted a clarification regarding tagging practices associated with the BPATPUD POR/POD. Additional information is posted as �BPATPUD Reservations and Scheduling� under the Customer News folder to the left of this page. Avista is able to accept tags via the BPATPUD POR/POD to and from CHPD, GCPD, and BPAT-MIDCRemote.
In addition to this change, a simultaneous window will be established beginning March 16, 2009 and ending March 28, 2009 at 00:00, during which all requests for long-term transmission service to and from BPATPUD will be deemed to be submitted simultaneously.
For further information, please contact Warren Clark at 509-495-4186 or Kenneth Dillon at 509-495-4436.
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