Capstone Projects

Operating Facilities

Claresholm Solar

Year Built


Capstone Ownership


Nameplate Capacity (MW)


Claresholm Solar


The 132 MWac Claresholm Solar Project is Canada's largest solar facility and is located in the Municipal District of Willow Creek, Alberta. The project is owned by Capstone (51%) and Obton A/S (49%), one of Europe's largest investors in solar. In 2019, the project received regulatory approvals from the Alberta Utilities Commission and executed a 74 MWac power purchase agreement with TC Energy Corporation. Construction began in the spring of 2020 and the facility achieved commercial operation on April 15, 2021. Capstone is self-performing operations and maintenance of the facility. 



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