Canadian Energy Centre
Experts urge caution with Canadian energy in response to Trump tariffs

From The Canadian Energy Centre
By Will Gibson
‘We want Americans to stand up for our supply’
A lawyer by training, Gary Mar is also a keen student of history. And he recommends Canadians look at what happened when past U.S. administrations imposed tariffs on imports before jumping to add costs to Canadian energy.
“President Richard Nixon imposed a 10 per cent tariff in 1971 and withdrew it after a few months because it caused so much pain for American consumers,” says Mar, CEO of the Canada West Foundation, who served as Alberta’s trade representative in Washington from 2007 to 2011.
“Canadians and their governments need to be patient. Any tariffs on energy will be passed on to consumers in the United States. We shouldn’t let the president off the hook for raising the price to American drivers by putting more duties on energy we export,” he says.
“We want Americans to stand up for our supply, not displace the anger with President Trump for raising prices with anger towards Canadians.”
A major U.S. supplier
The U.S. imports more than four million barrels of oil per day from Canada, or about one out of every five barrels the country consumes. Most Canadian imports are destined for refineries in the U.S. Midwest including Illinois, Indiana, Michigan and Ohio.
About 99 per cent of natural gas imports into the United States also come from Canada. Natural gas imports flow primarily to Idaho, North Dakota, Minnesota and Montana, according to the U.S. Energy Information Administration.
Trump tariffs
Nixon put tariffs in place in an attempt to weaken the U.S. dollar against foreign currencies and strengthen U.S. exports.
Mar, who served as cabinet minister in the Klein and Stelmach governments from 1993 to 2007, sees Trump’s tariffs as aimed to repatriate manufacturing and jobs to America.
“President Trump made this explicitly clear…if you want to sell manufactured goods in the United States, you need to move your factories here,” says Mar.
“But Canadian oil and natural gas are key inputs that help U.S. manufacturing. We ship the products or partially refined products that support manufacturing of finished products in the United States. Tariffs will raise those costs for U.S. manufacturers and ultimately American consumers.”
A divisive rerun of the National Energy Program?
Mar’s former cabinet colleague Ted Morton agrees Canada needs to exercise patience and caution in any response to U.S. tariffs.
Morton, who served as an Alberta cabinet minister from 2006 to 2012, strongly disagrees with the idea of placing countervailing tariffs on energy exports to the United States. Morton casts it as a divisive rerun of then Prime Minister Pierre Trudeau’s controversial National Energy Program in the early 1980s.
Energy export tariffs “would be an attempt to revive Liberal Party support from disillusioned voters in Ontario and Quebec,” he says.
“The biggest loser in Trump’s new tariff war will be Ontario due to the integration of the auto sector between the U.S. and Canada. It’s simple political arithmetic. Ottawa could collect $4 or $5 billion by taxing energy exports in western Canada and send that money to prop up struggling industries in Ontario and Quebec,” Morton says.
“Ontario and Quebec combined have a total of 199 MPs, more than enough to form a majority government. It’s the ‘screw the West and take the rest’ strategy. It’s how the Liberals won the 1980 federal election, and they could try it again.”
Legal and constitutional precedents
And while imposing export tariffs on Canadian energy could be politically popular in central Canada, Morton suggests the action would not withstand a legal challenge thanks to legal and constitutional precedents set by former Alberta Premier Peter Lougheed.
“Peter Lougheed left future Alberta premiers with some very effective legal weapons. His government successfully challenged the constitutionality of Trudeau’s export tax on natural gas. He then teamed up with the other western premiers to negotiate a new constitutional amendment that affirms provincial jurisdiction over the development and conservation of natural resources,” Morton says.
“Premier Danielle Smith should win any constitutional challenge if the federal government tries to impose an export tariff on oil or natural gas.”
Morton, like Mar, also counselled patience in responding to tariffs because “Trump’s tariffs on Canadian energy will punish American consumers more than Canadians.”
The national interest
David Yager, who has studied and analyzed energy policy for more than 40 years, agrees tariffs on energy have the potential to drive a wedge between Alberta and the rest of the country in the same way the National Energy Program did.
“The dynamic definition of national interest is what I struggle with. Going back several decades, it was in the national interest to get oil and gas across Canada so there was a drive to build pipelines east and west,” says Yager, a consultant who also serves as a special advisor to Premier Smith.
“Today, the national interest has flipped again, and energy exports are now a source of revenue to save the ‘real’ Canada, which is central Canada. It’s the same kind of logic that has seen the emissions cap on oil and gas as well as the carbon tax.”
If Canada wants to retaliate, Yager recommends putting a duty on the 1.7 billion cubic feet of natural gas imported by Ontario and Quebec from the northeastern United States.
“That would be the appropriate tit for tat response,” Yager says.
“You could build a nice pool of capital and clobber U.S. producers without driving a wedge between Alberta and the rest of the country.”
Alberta
Temporary Alberta grid limit unlikely to dampen data centre investment, analyst says

From the Canadian Energy Centre
By Cody Ciona
‘Alberta has never seen this level and volume of load connection requests’
Billions of investment in new data centres is still expected in Alberta despite the province’s electric system operator placing a temporary limit on new large-load grid connections, said Carson Kearl, lead data centre analyst for Enverus Intelligence Research.
Kearl cited NVIDIA CEO Jensen Huang’s estimate from earlier this year that building a one-gigawatt data centre costs between US$60 billion and US$80 billion.
That implies the Alberta Electric System Operator (AESO)’s 1.2 gigawatt temporary limit would still allow for up to C$130 billion of investment.
“It’s got the potential to be extremely impactful to the Alberta power sector and economy,” Kearl said.
Importantly, data centre operators can potentially get around the temporary limit by ‘bringing their own power’ rather than drawing electricity from the existing grid.
In Alberta’s deregulated electricity market – the only one in Canada – large energy consumers like data centres can build the power supply they need by entering project agreements directly with electricity producers.
According to the AESO, there are 30 proposed data centre projects across the province.
The total requested power load for these projects is more than 16 gigawatts, roughly four gigawatts more than Alberta’s demand record in January 2024 during a severe cold snap.
For comparison, Edmonton’s load is around 1.4 gigawatts, the AESO said.
“Alberta has never seen this level and volume of load connection requests,” CEO Aaron Engen said in a statement.
“Because connecting all large loads seeking access would impair grid reliability, we established a limit that preserves system integrity while enabling timely data centre development in Alberta.”
As data centre projects come to the province, so do jobs and other economic benefits.
“You have all of the construction staff associated; electricians, engineers, plumbers, and HVAC people for all the cooling tech that are continuously working on a multi-year time horizon. In the construction phase there’s a lot of spend, and that is just generally good for the ecosystem,” said Kearl.
Investment in local power infrastructure also has long-term job implications for maintenance and upgrades, he said.
“Alberta is a really exciting place when it comes to building data centers,” said Beacon AI CEO Josh Schertzer on a recent ARC Energy Ideas podcast.
“It has really great access to natural gas, it does have some excess grid capacity that can be used in the short term, it’s got a great workforce, and it’s very business-friendly.”
The unaltered reproduction of this content is free of charge with attribution to the Canadian Energy Centre.
Canadian Energy Centre
Alberta oil sands legacy tailings down 40 per cent since 2015

Wapisiw Lookout, reclaimed site of the oil sands industry’s first tailings pond, which started in 1967. The area was restored to a solid surface in 2010 and now functions as a 220-acre watershed. Photo courtesy Suncor Energy
From the Canadian Energy Centre
By CEC Research
Mines demonstrate significant strides through technological innovation
Tailings are a byproduct of mining operations around the world.
In Alberta’s oil sands, tailings are a fluid mixture of water, sand, silt, clay and residual bitumen generated during the extraction process.
Engineered basins or “tailings ponds” store the material and help oil sands mining projects recycle water, reducing the amount withdrawn from the Athabasca River.
In 2023, 79 per cent of the water used for oil sands mining was recycled, according to the latest data from the Alberta Energy Regulator (AER).
Decades of operations, rising production and federal regulations prohibiting the release of process-affected water have contributed to a significant accumulation of oil sands fluid tailings.
The Mining Association of Canada describes that:
“Like many other industrial processes, the oil sands mining process requires water.
However, while many other types of mines in Canada like copper, nickel, gold, iron ore and diamond mines are allowed to release water (effluent) to an aquatic environment provided that it meets stringent regulatory requirements, there are no such regulations for oil sands mines.
Instead, these mines have had to retain most of the water used in their processes, and significant amounts of accumulated precipitation, since the mines began operating.”
Despite this ongoing challenge, oil sands mining operators have made significant strides in reducing fluid tailings through technological innovation.
This is demonstrated by reductions in “legacy fluid tailings” since 2015.
Legacy Fluid Tailings vs. New Fluid Tailings
As part of implementing the Tailings Management Framework introduced in March 2015, the AER released Directive 085: Fluid Tailings Management for Oil Sands Mining Projects in July 2016.
Directive 085 introduced new criteria for the measurement and closure of “legacy fluid tailings” separate from those applied to “new fluid tailings.”
Legacy fluid tailings are defined as those deposited in storage before January 1, 2015, while new fluid tailings are those deposited in storage after January 1, 2015.
The new rules specified that new fluid tailings must be ready to reclaim ten years after the end of a mine’s life, while legacy fluid tailings must be ready to reclaim by the end of a mine’s life.
Total Oil Sands Legacy Fluid Tailings
Alberta’s oil sands mining sector decreased total legacy fluid tailings by approximately 40 per cent between 2015 and 2024, according to the latest company reporting to the AER.
Total legacy fluid tailings in 2024 were approximately 623 million cubic metres, down from about one billion cubic metres in 2015.
The reductions are led by the sector’s longest-running projects: Suncor Energy’s Base Mine (opened in 1967), Syncrude’s Mildred Lake Mine (opened in 1978), and Syncrude’s Aurora North Mine (opened in 2001). All are now operated by Suncor Energy.
The Horizon Mine, operated by Canadian Natural Resources (opened in 2009) also reports a significant reduction in legacy fluid tailings.
The Muskeg River Mine (opened in 2002) and Jackpine Mine (opened in 2010) had modest changes in legacy fluid tailings over the period. Both are now operated by Canadian Natural Resources.
Imperial Oil’s Kearl Mine (opened in 2013) and Suncor Energy’s Fort Hills Mine (opened in 2018) have no reported legacy fluid tailings.
Suncor Energy Base Mine
Between 2015 and 2024, Suncor Energy’s Base Mine reduced legacy fluid tailings by approximately 98 per cent, from 293 million cubic metres to 6 million cubic metres.
Syncrude Mildred Lake Mine
Between 2015 and 2024, Syncrude’s Mildred Lake Mine reduced legacy fluid tailings by approximately 15 per cent, from 457 million cubic metres to 389 million cubic metres.
Syncrude Aurora North Mine
Between 2015 and 2024, Syncrude’s Aurora North Mine reduced legacy fluid tailings by approximately 25 per cent, from 102 million cubic metres to 77 million cubic metres.
Canadian Natural Resources Horizon Mine
Between 2015 and 2024, Canadian Natural Resources’ Horizon Mine reduced legacy fluid tailings by approximately 36 per cent, from 66 million cubic metres to 42 million cubic metres.
Total Oil Sands Fluid Tailings
Reducing legacy fluid tailings has helped slow the overall growth of fluid tailings across the oil sands sector.
Without efforts to reduce legacy fluid tailings, the total oil sands fluid tailings footprint today would be approximately 1.6 billion cubic metres.
The current fluid tailings volume stands at approximately 1.2 billion cubic metres, up from roughly 1.1 billion in 2015.
The unaltered reproduction of this content is free of charge with attribution to the Canadian Energy Centre.
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