BC Hydro has completed the Site C hydroelectric project with the commissioning of its sixth and final generating unit.
The facility now has the capacity to produce more than 1100MW of electricity, enough to power about 500,000 homes annually. The additional power increases BC Hydro’s total supply by about 8%.
“The commission of Site C’s final generating unit is another step forward to securing B.C.’s clean energy future,” said Adrian Dix, Minister of Energy and Climate Solutions. “I extend my sincere appreciation to the thousands of people who worked on Site C over the past decade – because of your work, generations of British Columbians will benefit from reliable and affordable clean electricity.”
Construction began in 2015. The first generating unit went into service in October 2024, with the remaining units coming online over the next 10 months. BC Hydro reports that major components, including the earthfill dam, powerhouse, spillways, approach channel, substation, and transmission connections to the grid, are performing as intended.
“Bringing the final generating unit online is a proud moment for everyone at BC Hydro,” said Charlotte Mitha, BC Hydro President and CEO. “Site C represents years of dedication, innovation, collaboration and overcoming challenges. Now that Site C is in full operation, it will serve our customers for the next 100 years and play a critical role in ensuring a stable and reliable electricity system.”
Remaining work includes completing the powerhouse and generating station, paving access roads, final equipment commissioning, and fixing deficiencies. Crews are also backfilling tunnels once used to divert the Peace River and replanting vegetation in former construction areas.
