The Tempest Wind Power Project (the Project or Tempest) is a proposed 100-megawatt (MW) wind project located approximately 22 km south of Taber and 32 km east of Lethbridge in Warner County, Alberta. The Project will consist of up to 22 wind turbine generators, each with a capacity to generate between 4.5 to 6 MW of power. The final turbine technology will be confirmed as the project advances through the development process.

The Project is being developed by TransAlta Corporation and we plan to construct, own and operate Tempest wind facility. Current target commercial operation date for the Project is December 2024. As part of our ongoing development efforts, TransAlta has completed the full suite of environmental studies required by Alberta Environment and Parks; continues collecting wind data and advancing its engineering efforts; advancing the project through the AESO interconnection queue; and is on track to submit an application for permit and license to build, own and operate the facility to the Alberta Utilities Commission (AUC) in fall of 2022.

More information will be shared about the Project in the coming months as we kickoff of stakeholder consultation in accordance with the AUC’s Rule 007 Participant Involvement Program. We welcome and value stakeholder participation and feedback. This webpage will be updated with new information as it becomes available.

Learn more about the AUC’s regulatory process on their website.

Reference Documents

Mailout to stakeholders – September 2022
Community Engagement session print out – September 2022
Mailout to stakeholders – July 2022


Phone: (877) 547-3365 Extension 1
Email: projects@transalta.com