Vestas will service nine projects across Canada, "from Vancouver Island, British Columbia to West Cape, Prince Edward Island", the company said.
The manufacturer said it would service the projects, which use multiple Vestas models, for the duration of the projects' 20-year lifespan.
"By renewing our contracts, we are continuing to rely on Vestas to provide reliable, cost-effective maintenance services to maximise safe, reliable operations for years to come," said C2C director of operations Mark Gilmore.
The C2C consortium comprises French developer Engie, Japanese conglomerate Mitsui & Co, and asset managemment firm Axium Infrastructure. C2C owns and operates 678MW of wind and solar capacity across Canada. It was formed in December 2012.