Case information
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41876
Piikani Nation v. Alberta Energy Regulator, et al.
(Alberta) (Civil) (By Leave)
Docket
Judgments on applications for leave to appeal are rendered by the Court, but are not necessarily unanimous.
| Date | Proceeding | Filed By (if applicable) |
|---|---|---|
| 2025-10-03 | Close file on Leave | |
| 2025-10-02 | Copy of formal judgment sent to Registrar of the Court of Appeal and all parties | |
| 2025-10-02 | Judgment on leave sent to the parties | |
| 2025-10-02 |
Judgment of the Court on the application for leave to appeal, The application for leave to appeal from the judgment of the Court of Appeal of Alberta (Calgary), Number 2401-0005AC, 2025 ABCA 186, dated May 27, 2025, is dismissed with costs. Dismissed, with costs |
|
| 2025-08-25 | All materials on application for leave submitted to the Judges, for consideration by the Court | |
| 2025-08-18 |
Applicant's reply to respondent's argument, (Letter Form), Missing: Proof of Service (Rec'd 2025-08-20), Completed on: 2025-08-18, (Printed version filed on 2025-08-19) |
Piikani Nation |
| 2025-08-11 | Respondent's response on the application for leave to appeal, (Book Form), Joint response for files 41851-41874 and 41876 , Completed on: 2025-08-12, (Printed version filed on 2025-08-13) | Alberta Energy Regulator |
| 2025-07-04 | Order on motion to expedite the application for leave, by THE REGISTRAR | |
| 2025-07-04 |
Decision on motion to expedite the application for leave to appeal, Reg, UPON APPLICATION by the applicant for an order to expedite the application for leave to appeal, to abridge the time to serve and file the response to the application for leave to appeal, or in the alternative, for an order placing the application for leave to appeal in abeyance until 41576 - Democracy Watch v. Attorney General of Canada is decided; AND THE MATERIAL FILED having been read; IT IS HEREBY ORDERED THAT: The motion is granted in part. The respondents shall serve and file their response to the application for leave to appeal on or before August 11, 2025. The applicant shall serve and file their reply, if any, on or before August 21, 2025. Judgment accordingly |
|
| 2025-07-04 | Submission of motion to expedite the application for leave to appeal, Reg | |
| 2025-07-02 | Reply to motion to expedite the application for leave to appeal, (Letter Form), Completed on: 2025-07-03, (Printed version filed on 2025-07-09) | Piikani Nation |
| 2025-06-27 | Certificate (on limitations to public access), (Letter Form), 23A, (Printed version filed on 2025-06-30) | Alberta Energy Regulator |
| 2025-06-27 | Notice of name, (Letter Form), (Printed version filed on 2025-06-30) | Alberta Energy Regulator |
| 2025-06-27 | Response to the motion to expedite the application for leave to appeal, (Letter Form), Completed on: 2025-06-27, (Printed version filed on 2025-06-30) | Alberta Energy Regulator |
| 2025-06-25 | Letter acknowledging receipt of a complete application for leave to appeal, FILE OPENED | |
| 2025-06-23 | Motion to expedite the application for leave to appeal, (Book Form), Completed on: 2025-06-23, (Printed version filed on 2025-06-24) | Piikani Nation |
| 2025-06-23 | Certificate (on limitations to public access), (Letter Form), 23A, (Printed version due on 2025-06-30) | Piikani Nation |
| 2025-06-23 | Notice of name, (Letter Form), (Printed version due on 2025-06-30) | Piikani Nation |
| 2025-06-23 | Application for leave to appeal, (Book Form), Completed on: 2025-06-23, (Printed version filed on 2025-06-24) | Piikani Nation |
Parties
Please note that in the case of closed files, the “Status” column reflects the status of the parties at the time of the proceedings. For more information about the proceedings and about the dates when the file was open, please consult the docket of the case in question.
Main parties
| Name | Role | Status |
|---|---|---|
| Piikani Nation | Applicant | Active |
v.
| Name | Role | Status |
|---|---|---|
| Alberta Energy Regulator | Respondent | Active |
And Between
v.
| Name | Role | Status |
|---|---|---|
| Joint Review Panel for the Grassy Mountain Coal Project acting in its capacity as the Alberta Energy Regulator | Respondent | Active |
Other parties
| Name | Role | Status |
|---|---|---|
| Minister of Justice of Alberta | Intervener | Active |
Counsel
Party: Piikani Nation
Counsel
Alison Gray
421 – 7th Avenue SW
Suite 1600
Calgary, Alberta
T2P 4K9
Telephone: (403) 298-1992 Ext: 1841
FAX: (403) 263-9193
Email: caireen.hanert@gowlingwlg.com
Agent
2600-160 Elgin Street
Ottawa, Ontario
K1P 1C3
Telephone: (613) 786-8699
FAX: (613) 563-9869
Email: graham.ragan@gowlingwlg.com
Party: Alberta Energy Regulator
Counsel
Scott A. Matheson
Suite 1000, 250 – 5 Street SW
Calgary, Alberta
T2P 0R4
Email: george.wong@aer.ca
Agent
331 Somerset Street West
Ottawa, Ontario
K2P 0J8
Telephone: (613) 282-1712
FAX: (613) 288-2896
Email: msobkin@sympatico.ca
Party: Joint Review Panel for the Grassy Mountain Coal Project acting in its capacity as the Alberta Energy Regulator
Counsel
Suite 1000, 250 – 5 Street SW
Calgary, Alberta
T2P 0R4
Email: george.wong@aer.ca
Agent
331 Somerset Street West
Ottawa, Ontario
K2P 0J8
Telephone: (613) 282-1712
FAX: (613) 288-2896
Email: msobkin@sympatico.ca
Party: Minister of Justice of Alberta
Counsel
Suite 1000, 102A Tower
10025 102A Avenue
Edmonton, Alberta
T5J 2Z2
Telephone: (780) 422-7145
Email: leah.mcdaniel@gov.ab.ca
Summary
Keywords
Administrative law — Judicial review — Privative clause — Whether judicial review on questions of fact or mixed fact and law barred by privative clause — Responsible Energy Development Act, S.A. 2012, c. R-17.3, ss. 45, 56
Summary
Case summaries are prepared by the Office of the Registrar of the Supreme Court of Canada (Law Branch). Please note that summaries are not provided to the Judges of the Court. They are placed on the Court file and website for information purposes only.
The applicant, Piikani Nation, supports the development of an open pit coal extraction project in Alberta. Pursuant to the Responsible Energy Development Act (the “REDA”), the project required the approval of the respondent Alberta Energy Regulator (the “AER”). The AER denied the project. The applicant exercised their right under s. 45 of the REDA to seek leave to appeal the AER’s decision to the Court of Appeal of Alberta on a question of law. This application was dismissed, as was an application for leave to appeal to this Court. The applicant then pursued an application for judicial review of the AER’s decision. The AER moved to strike this application based on the privative clause in s. 56 of the REDA, which bars review of the AER’s decisions except through the statutory right of appeal.
The application judge granted the motion and dismissed the application for judicial review, holding that the limited right of appeal and privative clause in the REDA, the constitutionality of which the applicant did not challenge, were institutional design choices that reviewing courts must respect. The Court of Appeal dismissed an appeal, holding that the applicant’s arguments amounted to a constitutional challenge that it was inappropriate to adjudicate for the first time on appeal, in the absence of a factual record.
Lower court rulings
Application for judicial review dismissed with costs.
Appeal dismissed with costs.
Filed documents
The memorandums of argument on an application for leave to appeal will be posted here 30 days after leave to appeal has been granted unless they contain personal information, information that is subject to a publication ban, or any other information that is not part of the public record. You may also obtain copies of the memorandum by filling out the Request for Court records form or by contacting the Court’s Records Centre either by email at records-dossiers@scc-csc.ca or by telephone at 613‑996‑7933 or at 1‑888‑551‑1185.
If you have questions about a memorandum of argument or want to use a memorandum of argument, please contact the author of the memorandum of argument directly. Their name appears at the end of the memorandum of argument. The contact information for counsel is found in the “Counsel” tab of this page.
Downloadable PDFs
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Related links
The factums of the appellant, the respondent and the intervener will be posted here at least 2 weeks before the hearing unless they contain personal information, information that is subject to a publication ban, or any other information that is not part of the public record. You may also obtain copies of factums by filling out the Request for Court records form or by contacting the Court’s Records Centre either by email at records-dossiers@scc-csc.ca or by telephone at 613‑996‑7933 or at 1‑888‑551‑1185.
If you have questions about a factum or want permission to use a factum, please contact the author of the factum directly. Their contact information appears on the first page of each factum.
Downloadable PDFs
Not available
Related links
The condensed books of the appellant, the respondent and the intervener will be posted here upon receipt of the electronic version, 2 days prior to the scheduled appeal hearing. You may also obtain copies of condensed books by filling out the Request for Court records form or by contacting the Court’s Records Centre either by email at records-dossiers@scc-csc.ca or by telephone at 613‑996‑7933 or at 1‑888‑551‑1185.
If you have questions about a condensed book or want permission to use a condensed book, please contact the author of the condensed book directly. Their contact information appears on the first page of each condensed book.
Downloadable PDFs
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