Canada

Darlington — 3,740 MW Nuclear

Nuclear Verified

Darlington is a 3,740 MW nuclear power plant located in Canada. View location, capacity, and technical details.

Capacity
3,740 MW

Installed

Commissioned
1993

Year online

Owner
Ontario Power Generation

Operator

Location
43.87, -78.72

Coordinates

Insights

#5
largest in %s
#61
largest %s worldwide
#211
largest worldwide
1993
%d yrs newer than avg
45
operated by %s
96
plants within 100 km

Technical Details

Fuel Type
Nuclear
Capacity
3,740 MW
Commissioned
1993
Status
Operational
Owner
Ontario Power Generation
Country
Canada
Coordinates
43.870, -78.724

Estimated Carbon Footprint

Annual CO₂
334,176 t

tonnes / year

Lifetime CO₂
16.7M t

over ~%d yrs

Intensity
12 g

gCO₂ per kWh

Annual emissions equal to

72,647
cars / year
44,557
homes / year
15.2M
trees to offset

Indicative estimate from standard life-cycle emission and capacity factors — not a measured figure. Open calculator

Nearby Stations

About this plant

The Darlington Nuclear Power Plant, located in Ontario, Canada, is one of the most significant nuclear facilities in the country, with a generation capacity of 3,740 megawatts (MW). Commissioned in the late 1980s, it plays a critical role in the Ontario energy sector, providing a substantial portion of the province’s electricity needs. As a major player in the energy landscape, Darlington contributes to the stability and reliability of the power grid, helping to ensure a consistent supply of electricity for both residential and industrial consumers.

Darlington operates using nuclear fission as its primary energy source, specifically utilizing natural uranium fuel in CANDU (Canada Deuterium Uranium) reactors. This technology is unique to Canada and is noted for its ability to use natural uranium without the need for enrichment, which simplifies the fuel cycle and enhances safety. The reactors at Darlington employ heavy water as both a moderator and coolant, allowing for efficient heat transfer and sustained nuclear reactions. This method not only maximizes the energy output from the uranium fuel but also minimizes the production of greenhouse gas emissions, positioning nuclear energy as a low-carbon alternative to fossil fuels.

The environmental impact of the Darlington Nuclear Power Plant is primarily associated with its minimal greenhouse gas emissions during operation. Unlike fossil fuel power plants, Darlington does not emit significant amounts of carbon dioxide, making it a crucial asset in the fight against climate change. However, the plant does produce radioactive waste, which requires careful management and long-term storage solutions to protect human health and the environment. The Ontario Power Generation (OPG), which operates Darlington, is committed to implementing stringent safety measures and protocols to ensure the safe handling and disposal of nuclear waste.

Regionally, the Darlington Nuclear Power Plant is vital not only for its energy production but also for its economic contributions. The plant provides thousands of jobs, both directly and indirectly, supporting local communities and industries. It is also a key component of Ontario’s energy strategy, which aims to reduce reliance on coal and promote cleaner energy sources. As Ontario continues to transition toward a more sustainable energy future, Darlington stands out as a cornerstone of the province’s efforts to meet growing electricity demands while minimizing environmental impact. Overall, the Darlington Nuclear Power Plant represents a significant achievement in Canada’s energy sector, balancing the need for reliable power generation with environmental stewardship.

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