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| ! |           | ## Department of Energy    |          |           |   |
| [ |           |                            |          |           |   |
| ] |           | Bonneville Power           |          |           |   |
| ( |           | Administration\            |          |           |   |
| m |           | P.O. Box 61409             |          |           |   |
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| d |           | Vancouver, WA 98666-1409   |          |           |   |
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|   |           |                            |          |           |   |
+---+-----------+----------------------------+----------+-----------+---+
|   | October   |                            |          |           |   |
|   | 3, 2005   |                            |          |           |   |
|   |           |                            |          |           |   |
|   | In reply  |                            |          |           |   |
|   | refer to: |                            |          |           |   |
|   | T-DITT-2  |                            |          |           |   |
+---+-----------+----------------------------+----------+-----------+---+

**To: Parties Interested in the Willow Creek Winds Interconnection
Project**

The Bonneville Power Administration has been asked by Invenergy LLC to
interconnect up to 180-megawatts of power from the proposed Willow Creek
Winds Project located in Gilliam and Morrow Counties, Ore. to the
Federal Columbia River Transmission System. The purpose of this letter
is to describe the proposed interconnection, explain the type of
environmental analysis that will be done, invite you to a public
meeting, describe the comment process, and tell you how to contact BPA
if you have questions or need more information.

BPA operates consistently with the Federal Energy Regulatory
Commission's *pro forma* open access tariff. Under the tariff, BPA
offers transmission services, including interconnection of generation to
all eligible customers. BPA's practice is to grant interconnection to
any eligible customer that complies with BPA's financial, technical and
permitting requirements and undertakes appropriate mitigation
activities. BPA also offers interconnection services subject to
consideration of the environmental impacts under the National
Environmental Policy Act.

**Proposal**

BPA proposes to provide interconnection for up to 150-MW to BPA's
Tower-Alkai 115-kilovolts transmission line in Gilliam County, Ore. The
proposed interconnection site is within a BPA right-of-way with four
transmission lines and consists of open, sparsely vegetated land that is
partly privately owned and partly owned by the Bureau of Land
Management. Additional work would be needed at the BPA Boardman
Substation, within the substation fence.

Invenergy is currently proposing a 72- MW project with no firm expansion
plans at this time. Invenergy has obtained conditional use permits from
Gilliam and Morrow Counties. The project's output would be marketed to
wholesale power marketers and various organizations interested in
procuring wind-generated power. BPA does not plan to purchase any power
generated from the project.

**Environmental Analysis**

The project is in the preliminary planning stage. After scoping, BPA
will produce a tiered Record of Decision under the Business Plan
Environmental Impact Statement, expected in December 2005. Tiered RODs
are not distributed to the public for review and comment. If BPA decides
to interconnect the project, a contract would be offered for
interconnection of 150-MW of power from the wind project into the FCRTS.
The interconnection facilities would be scheduled for completion by
October 2006. At that time, Invenergy would be allowed to begin testing
of the generation and commence commercial operation.

**Public Scoping Meeting**

You are invited to attend a public scoping meeting. BPA representatives
will be available to discuss the project, answer any questions you may
have about the proposed project and accept comments. The meeting is on:

**Tuesday, Oct. 18, 2005**

6 - 8 p.m.

Arlington High School Library

1200 Main Street

Arlington, Ore. 97812

**How to Comment**

BPA invites public comments on the proposal through **Nov. 1, 2005**.
There are a number of ways to comment. You can provide comments at the
public meeting, submit comments on line at BPA's Web site:
[*www.bpa.gov/comment*](http://www.bpa.gov/comment/), or mail them to:
BPA Communications, DM-7, P.O. Box 14428, Portland, OR, 97293-4428.
Please include the project name "Willow Creek Winds" with your comments.
BPA will address the comments received in the tiered ROD.

**For More Information**

If you have questions, would like more information about the project or
would like to meet with us, please call us toll-free 1-888-276-7790 or
e-mail me at [*deriehl@bpa.gov*](mailto:deriehl@bpa.gov). Additional
information is posted on the BPA Web site at
*<http://www.transmission.bpa.gov/PlanProj/Wind/>.*

Sincerely,

*/s/ Doug Riehl*

Doug Riehl

Project Manager

Enclosures: Comment form, project map and postcard

CC: Invenergy