Alberta just rewrote the rulebook for its power market

For the first time in roughly 25 years, the way Alberta sets its electricity price is changing shape. Most buyers will still pay one province-wide price. But the market that price comes from is not the one your current contract was written for.

The AESO published the final design of its Restructured Energy Market (REM) in August 2025, and the rules were approved by regulation in March 2026. Implementation begins in mid-2027.

That sounds far away. It is closer than most contract terms.

Whether your footprint is in Alberta alone or spread across Canada and the States, this is the kind of change worth reading before it reaches your invoice.

What is actually changing

The price can move in a wider range, some large customers get a choice about which price they pay, and the grid operator gets new tools to avoid supply crunches.

  • Price band: The energy offer cap is $1,500/MWh, rising to $2,000/MWh in 2032. The floor is $0/MWh, dropping to –$100/MWh in 2032.
  • Scarcity pricing: An overall price cap of $3,000/MWh applies only when dispatchable supply is tight.
  • Locational pricing: Most customers keep a single Alberta-wide price. Eligible large customers get a one-time option to pay their local price instead.
  • Reliability tools: A new real-time ramping product, plus a way for the AESO to start slow-to-start plants in advance when forecast supply looks short.

A negative floor is worth pausing on. It means that in hours with surplus supply, the pool price can drop below zero. For a buyer on an index-linked product, that may sound like good news. Depending on how your contract treats those hours, it may not be that simple.

The $3,000 figure is easy to misread. It is a scarcity ceiling, not the new everyday cap on offers.

What the AESO deliberately left out

The design is as notable for what it skips. Alberta is not adding a capacity market, which would pay generators for being available rather than only for the energy they sell. Alberta stays an energy-only market.

The AESO also dropped two day-ahead proposals from earlier consultations: a day-ahead commitment market and a day-ahead energy scheduling market. Alberta already runs a day-ahead market for operating reserves, and that one is being expanded with hourly and simplified procurement.

In plain terms: the energy price you buy against is still set in real time. That tends to keep the basic shape of index-linked pricing familiar, even as the numbers around it change.

What it means for your Alberta contracts

Two businesses, same market. One reads its contract before mid-2027 and knows how it handles a wider price range. The other finds out on the first invoice that behaves differently.

A contract written for a $0 floor and a lower offer cap may not say much about hours below zero, or about how scarcity pricing flows through to you. A review before implementation can help you see where you stand. Questions worth asking:

  • How does your contract treat negative or very low pool prices? Is there a floor, a pass-through, or silence?
  • If you are on an index-linked or variable rate, how exposed are you to a higher offer cap and more frequent price spikes?
  • Does your term end before or after mid-2027, and does it name the market rules it relies on?
  • Are you large and transmission-connected enough to be eligible for locational pricing? If so, that is an active decision, not a default.
  • Who handles the choice, and by when? The locational option is a one-time election.

For most buyers, nothing about the single province-wide price changes on day one. The point is not to react. It is to decide on purpose.

Not sure where you stand?

If you are not sure how your Alberta contracts line up with the new rules, that is worth a conversation. Our team can take a second look at your agreement and talk through the options, with no pressure and no obligation.

This article is general information, not legal or financial advice. Market rules and timelines may change, so confirm current details with the AESO.