On October 26, 2026, reporting out of Quebec said a court had struck down the two decrees behind Hydro-Québec’s data centre rate, and the rate case did not move an inch. The proposal was never the government’s to give or to lose. It sits before the Régie de l’énergie, where it has sat since February 19, and the ruling changed who stands behind the filing rather than the filing’s fate.
Hydro-Québec announced the proposed rate on February 19, 2026, and its numbers were never the disputed part of this story. A data centre drawing more than 5 MW would pay about 13 cents a kilowatt-hour under the proposal. Large-power customers pay an average of 6.82 cents today, which makes the proposed rate roughly double the going price for its biggest customer class. Eight months later, the backing is gone and the arithmetic is untouched.
The short answer. Two instruments carried this rate into the hearing room, and only one of them was ever load-bearing in the process that decides. The decrees expressed the government’s support, and October 26 reporting says a Superior Court judge has struck both of them down. The application itself, with its 13-cent average, 5 MW threshold and five-year transition, remains before the Régie de l’énergie for decision. No new rate is in force, no approval has been granted or refused, and hearings resume in December 2026.
A government lends a tariff its authority only as long as the courts allow. A regulator lends it something more durable: a decision built on a record that can survive an appeal.
- What exactly did Hydro-Québec file in February?
- What did the court change, and what did it leave standing?
- Is cheap power a birthright, or a bill somebody else pays?
- What should a Canadian operator watch from here?
What exactly did Hydro-Québec file in February?
The filing asks the Régie to set a new rate for the data centre segment, binding every new customer automatically. The threshold is a capacity greater than 5 MW, and every project above it passes a selection process before any connection is granted. Ministerial authorization sits on top of the rate question above 5 MW under the post-Bill 69 regime, so a proponent here clears a political gate and a regulatory gate in sequence.
The stated purpose, in the utility’s own published terms, is cost coverage rather than punishment or welcome. The utility’s position is that the customer drawing the power should carry the cost of serving its own load, at a price that still competes elsewhere in North America. The same announcement projects data centre use growing sevenfold by 2035, past 1,000 MW. Existing data centres would move onto the new rate across a five-year transitional rate.
What did the court change, and what did it leave standing?
On the reporting of October 26, a Superior Court judge struck down the two government decrees that backed the increase, and the rate case itself continues. This piece states it as reported, because the lane has not read the decision and will not decorate a ruling it has not opened. What the reporting establishes is narrow: the government’s formal backing has been removed from the structure, and the utility’s application, its evidence and its place on the Régie’s docket stand untouched.
The accountability here belongs to the choice of instrument rather than to the size of the number. A decree is the fastest tool a cabinet owns, signed in an afternoon and tested just as quickly in a courtroom. A rate application is the slowest tool the same government owns, decided in a hearing room on a public record. Quebec’s government reached for the fast tool to support a decision that only the slow tool was ever going to make. The Régie was always going to hold hearings, weigh the 6.82 against the 13, and rule on the arithmetic with or without a decree behind it.
Is cheap power a birthright, or a bill somebody else pays?
Hydro-Québec’s announcement states the argument as two figures on one page: 6.82 cents, the average its large-power customers pay today, and about 13 cents, the average it proposes for a large data centre. The first belief holds that the rivers built the cheapest large power in North America, and that a low industrial rate is the inheritance working exactly as its builders intended. The second holds that every kilowatt-hour sold below the cost of new supply is a transfer, landing quietly on households and businesses outside the favoured segment. A gap that wide cannot be defended as tradition without somebody naming who pays it.
The heritage is real, because the dams stand built and paid for across generations of Quebec ratepayers. The cost is also real, because that growth is not served by old concrete alone, and new supply arrives at new prices. Ottawa’s September principles took the same position, holding that a project’s electricity costs should stay with the project rather than migrating onto other customers. The synthesis is narrower than either belief and stronger than both when the figures are laid beside each other. Cheap power is an inheritance with a maintenance bill attached, and the only honest argument is over which customers pay which share of it. Ottawa Set Five Expectations for Data Centres. The Switches Sit Elsewhere.
What should a Canadian operator watch from here?
Consent is rarely the obstacle in Quebec that it has become in other provinces this fall. The October Angus Reid release found 50% of Quebec respondents saying their provincial government should limit large data centre development, the lowest share in the country. A province can be comparatively calm about the buildings and still fight hard over the price of feeding them. Until the Régie rules, any firm siting load in Quebec carries two scenarios in parallel: 6.82 cents for the contracts signed today, 13 cents for the expansion case the moment a decision lands. (64% of Canadians Want Data Centre Limits. The Builds Continue.)
The next fixed point is a hearing room calendar. Hearings resume in December 2026, before the body that was always going to decide this question on the record. A government can win a cabinet signature and lose it in a courtroom inside a single year, and none of that movement shifts the Régie’s December dates by one day.
Recap. Hydro-Québec asked the Régie in February 2026 for a data centre rate averaging about 13 cents a kilowatt-hour above 5 MW, roughly double today’s 6.82-cent large-power average. The government backed the filing with two Orders in Council, and October 26 reporting says a Superior Court judge has struck those decrees down while the case continues. The application, the threshold and the five-year transition stand exactly where they stood, awaiting the Régie’s decision. The December hearings are now the only date in this file that matters.
Follow the whole file as it moves: Canada’s data centre map: what is built, what is blocked, what is waiting.
