Proceeding 27240 Register

Application status: under review

Written evidence deadline: September 26, 2022​

Decision expected: To be determined

Watch an AUC hearing


The Alberta Utilities Commission will be holding a hearing to review the applications and submissions from ENGIE Development Canada GP Inc. for approval to construct and operate a 400-megawatt (MW) wind power plant, designated as the Buffalo Trail Wind Power Project. The AUC issued a notice of hearing on August 2, 2022. 

The project would consist of up to 65 wind turbines in two 200-MW phases (north and south phases). Each phase would have a separate substation, which would be designated as Buffalo Trail North Substation and Buffalo Trail South Substation, respectively. The project would be located in Cypress County and the project area and proposed substation locations are shown on the map below.

Further information about the proceeding is available through the AUC’s eFiling System under Proceeding 27240.

Participant information session

The AUC holds information sessions to provide information about how to have your say and become involved in its proceedings. The AUC is prepared to provide a telephone or virtual session about options for participating in this proceeding and the local intervener funding that may be available to you to support your participation, if requested by individuals or groups interested in the proceeding.

Please contact the lead application officer, Allan Anderson at 403-592-4438 or by August 15, 2022 if you want to participate in an information session.

For more information about how you may become involved in this proceeding, please contact us or visit our website and review the information on the AUC’s Review process for facility applications web page.

Hearing information

The AUC will be holding a hearing to review the applications and submissions received to consider the electric transmission development applications in Proceeding 27523. The hearing will commence on November 7, 2022 at 9 a.m.

If you intend to present evidence at the hearing, you must submit your written evidence by September 26, 2022 and be present at the commencement of the hearing. Your written evidence should include your statement about your intended level of participation, including whether you or your representative will:

  • Attend the hearing.
  • Cross-examine any of the applicant’s witness panels.

If you want to learn more about the review process, or for more information about how you may become involved in this proceeding, please contact us or review the information under “Have your say” or under “Review process.”

Summarized process schedule

The AUC has established the following process to consider the applications:

Process stepDeadline date
Virtual information session requestAugust 15, 2022
Interveners’ information requests (questions) to applicant deadlineAugust 29, 2022
Applicant’s deadline to respond to information requestsSeptember 12, 2022
Interveners’ written evidence deadlineSeptember 26, 2022
Information requests to interveners about intervener evidenceOctober 11, 2022
Interveners’ deadline to respond to information requestsOctober 24, 2022
Applicant’s reply evidence deadlineOctober 31, 2022
Hearing test sessionNovember 2, 2022
Commencement of hearingNovember 7, 2022 at 9 a.m.

The eFiling System​

The eFiling System should be accessed to view the applications and the other documents the AUC will be considering in this proceeding. The system is also used to file submissions and evidence to participate in the proceeding.

To create an account, select “New account” and follow the steps to create a user ID and password. If you have any questions about how to use the system please contact us at or 310-4AUC.

Documents being considered in this proceeding can be found in the eFiling​ System (which requires log in). Once you have logged in, enter 27240 in the “go to” section at the top left corner of your screen.

Buffalo Trail Wind Power Project