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The 2026 ISO tariff redesign: what you need to know

9 February 2026

For Alberta’s commercial and industrial sectors, the cost of doing business is often tied directly to the “Rulebook” of the power grid: the ISO Tariff. This document dictates how businesses are charged for the transmission and delivery of electricity.

Right now, that rulebook is being rewritten. The Alberta Electric System Operator (AESO) has launched a fundamental redesign of the tariff, specifically targeting Internal Demand Rates. This isn’t just a technical update; it is a shift in how electricity costs will be calculated for every major user in the province starting in 2026.

Why “behind-the-meter” matters

The core of this redesign focuses on how you are charged for power used on-site. The AESO is moving toward a new model that will redefine what it costs to stay connected to the grid. Whether you operate a manufacturing plant, a retail chain, or a tech hub, these changes will determine the “fixed” versus “variable” portions of your bill, potentially impacting your bottom line for a decade or more.

The ticking clock: February 17 deadline

The window to influence these changes is narrow. The AESO has set a February 17 deadline for stakeholders to provide feedback on their Evaluation Scorecard.

This scorecard is the checklist the AESO will use to select a winning rate structure from a long list of options. Decisions made this month will lock in the criteria used to judge which industries pay more and which pay less.

Peace of mind in a shifting landscape

The Alberta energy landscape is becoming more complex, but your strategy does not have to be. Whether you are already part of the DNE family or are looking for a partner who stays ahead of the curve, our mission remains the same: to shield you from regulatory complexity and help ensure your business remains competitive.

The grid is changing. Are you ready?

Start taking charge of your energy today!

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