World Power Plants

Otto Holden243 MW Hydroelectric

HydroRenewable

The Otto Holden Hydropower Facility, ranked 146th among 1,334 power generation plants in Canada, demonstrates the significance of hydroelectric power in the country's diverse energy landscape, boasting a capacity of 243 MW. This facility, owned and operated by Ontario Power Generation (OPG), contributes approximately 0.13% to Canada’s total installed capacity of 193,190 MW. Hydro represents the dominant fuel type in the Canadian energy sector, with a staggering 612 hydro plants collectively producing a significant portion of the nation’s electricity. Otto Holden employs state-of-the-art hydroelectric technology, which efficiently converts the energy of flowing water into electrical power, making it both a reliable and environmentally sustainable energy source. Situated near the Tembec Témiscaming 1-2 biomass facility, which has a capacity of 58.1 MW, Otto Holden is part of a broader regional energy strategy that values diverse fuel types while relying heavily on hydroelectricity. The proximity of these plants highlights the importance of integrated energy systems in ensuring a stable and resilient power supply. Compared to the average capacity of Canadian hydro plants, Otto Holden reflects a consistent commitment to optimizing energy production while maintaining environmental standards. The operator, OPG, has a long-standing history in the region, with operations that date back several decades, underscoring a commitment to providing clean energy solutions. As Canada moves towards ambitious climate goals, the Otto Holden facility is well-positioned to support both local and national energy needs while facilitating the transition to a more sustainable energy future.

Capacity
243 MW
Commissioning Year
1998

28 years old

Owner
Ontario Power Generation (OPG)
Location
46.3784°, -78.7276°

Canada, North America

Context & rankings
  • 146. largest of 1,334 plants in Canada
  • #6,778 worldwide by installed capacity
  • #1,269 of 8,493 Hydroelectric plants worldwide
  • 0.13% of the installed capacity of Canada
Age & fleet comparison

28 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Ontario Power Generation (OPG) operates 3 plants totalling 816 MW

Regional density

13 plants within 100 km, 545 MW combined

Nearest plant: Tembec Témiscaming 1-2 (46.3 km)

Data provenance

Location

Coordinates:: 46.378400, -78.727600
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Carbon Footprint

Zero Direct Emissions

Otto Holden is a hydro power plant producing approximately 851 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~24 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Hydro
Energy Source
Renewable
Country
Canada
Continent
North America
Data Source
Global Power Plant Database

CanadaEnergy Profile

1,334
Total Plants
193.2 GW
Total Capacity
HydroGasNuclearWind
Top Fuels

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