Hello Bruce

Bruce Power, located near Tiverton, Ontario and sandwiched between Port Elgin and Kincardine on the Lake Huron shoreline, is the world’s largest nuclear power plant.

When the Atomic Energy of Canada Limited (AECL) went looking for a location to build Canada’s first full-scale CANDU reactor, they narrowed their options down to somewhere along Lake Huron, on the shores of the Bruce Peninsula.

Sites as far north as Manitoulin Island and along the western shoreline of the peninsula from Tobermory to Goderich were considered.

Ultimately, Douglas Point was selected for access to lake water and its solid limestone bedrock, which provided the stable foundation required for the planned heavy reactor.

Construction began in 1960, with the reactor going into service in 1968.

The CANDU (Canada deuterium uranium) is a Canadian pressurized heavy-water reactor regarded as one of the world’s most innovative and safest nuclear reactor designs.

The basic operation of the CANDU is similar to that of other nuclear power plants.

Fission reactions in the reactor core heat pressurized water in a cooling loop. A heat exchanger transfers heat to a secondary cooling loop, which powers a steam turbine with an attached electric generator. The exhaust steam from the turbines is then cooled, condensed, and returned to the steam generator.

Most reactors must be completely shut down for several weeks to replace spent fuel.

CANDU reactors feature horizontal fuel channels, which allow operators to safely insert new fuel bundles and remove spent ones while the reactor continues running at full power.

Also, unlike most reactors that require expensive, highly enriched uranium, CANDU reactors can operate on naturally occurring uranium.

Canada holds approximately 582,000 tonnes of identified recoverable uranium resources, with ore grades up to 100 times higher than the global average, ranking it as the second-largest unmined resource base in the world.

In addition to having one of the largest supplies of fissile material, Canada is also home to the world’s largest nuclear power station.

The Bruce Nuclear Generating Station, formerly the Bruce Nuclear Power Development (BNPD), is operated by Bruce Power and occupies 932 ha (2300 acres) of land in Bruce County, Saugeen Ojibway Nation Territory, Ontario. This site also includes the now-decommissioned Douglas Point reactor.

The power plant includes eight CANDU reactors arranged into two stations known as Bruce A and Bruce B.

The initial four reactors were commissioned at Bruce A between 1977 and 1979, while the Bruce B reactors were added between 1984 and 1987.

By 2013, Bruce Power had become the world’s largest operating nuclear facility, with an output of over 6,274 megawatts annually.

Two years ago, Bruce Power began the process of adding to its eight-reactor fleet, proposing the construction of Bruce C, Ontario’s first large-scale nuclear build in more than three decades.

Earlier this month, the Ontario government signed a $300 million cost-sharing agreement to advance planning for the construction of Bruce C’s four additional reactors.

The new reactors will add up to 4,800 megawatts of power generation, cementing Bruce Power as the world’s largest nuclear power plant by both operational scale and electricity output.

Bruce Power’s history isn’t without its blemishes.

The initial Douglas Point station was arguably an operational and financial failure. The plant experienced ongoing engineering problems, particularly with leaks in its primary coolant circuits, and required significant, costly ongoing maintenance.

The costs to restore Bruce A and Bruce B ran over budget by more than $1 billion.

Environmental groups have criticized the project since day one over concerns about impacts to Lake Huron and questions about where the plant’s spent uranium might be dumped.

However, Bruce Power and its fleet of CANDU reactors continue to provide Canada and parts of the US with highly reliable, baseload, low-carbon electricity that is generally cheaper than natural gas, wind, and solar.

Bruce Power has helped secure Canada’s energy sovereignty with domestic fuel while also producing vital medical isotopes.

With the growing need for more electricity driven by new data centres and the shift to electric transportation, we’re gonna need big Bruce’s CANDU power and attitude even more than we ever have.

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