The number every industrial operator should track is 1,100 megawatts. That is the nameplate capacity of Site C, the Peace River dam project representing the largest addition to BC Hydro’s generating portfolio in nearly four decades. As those units come online through 2026, the utility faces a structural question it has not seriously revisited since 2015: how will the costs of this project be distributed?

The answer is taking shape inside a rate design application filed with the BC Utilities Commission (BCUC). The outcome will set industrial electricity tariffs for years, if not a decade. Operators who treat this process as background noise do so at their own expense.

BC Hydro’s industrial customers—including data centres, mines, LNG-adjacent facilities, and advanced manufacturers—have historically been served under Rate Schedule 1823, which last underwent substantive restructuring in 2015. That was before Metro Vancouver’s data centre boom, before green hydrogen became a serious capital allocation, and before AI infrastructure turned electricity from an operating cost into a primary site-selection variable.

Site C’s arrival alters the cost-recovery arithmetic. While 1,100 MW of new firm capacity offers reliability to power-intensive industries, the project’s substantial capital costs must be recovered across the rate base. The BCUC review will determine how that burden is distributed between residential and industrial customers, and how demand charges, energy charges, and load-factor incentives are structured within the industrial class.

The stakes are high for Metro Vancouver’s fastest-growing sectors. Data centre load growth in the region has been running at an estimated 15 to 20 per cent annually, driven by hyperscaler expansion and AI infrastructure that has turned suburban municipalities like Coquitlam and Langley into power-demand hotspots. For green hydrogen projects, which require massive quantities of electricity to remain economically viable, the difference between a demand charge structure that rewards high utilization and one that penalizes load variability can significantly impact project economics.

The BCUC intervention process is a strategic tool. The Commission's public registry contains the full docket for the application, including intervention deadlines and hearing dates. Intervener status—available to any party demonstrating a material interest—grants industrial customers and their associations the right to file evidence, cross-examine BC Hydro witnesses, and make submissions directly to the panel.

The Industrial Customers Group of BC and the BC Business Council's energy policy team have historically led these efforts. However, individual operators with significant load—particularly in sectors like AI data infrastructure or green hydrogen—should assess whether their specific tariff exposure warrants direct participation.

The BC Ministry of Energy, Mines and Low Carbon Innovation has signalled that attracting power-intensive clean industry is a provincial priority. This creates a policy tailwind for industrial customers arguing that favourable tariff structures serve the public interest—an argument that carries more weight when entered into the formal regulatory record.

BCUC proceedings move on fixed schedules, and intervention deadlines are not suggestions. Missing the window to register as an intervener limits participation to filing a letter of comment, forfeiting the ability to conduct information requests or present expert evidence. For an operator with a 50-megawatt load, the difference between a tariff designed with their profile in mind and one designed without their input is substantial.

The final variable is how BC Hydro structures demand charges relative to energy charges. Industrial customers with flexible load—those who can shift consumption to off-peak periods—benefit from tariff designs that reward such flexibility. Data centres with battery backup, green hydrogen producers who can throttle electrolyzers, and manufacturers with shiftable processes have genuine optionality, but capturing that value requires the tariff to recognize it.

Site C’s power is coming. The question is whether the resulting tariff reflects the operational realities of BC’s most power-intensive growth industries.

What to watch:

• Intervention registration deadlines in the BCUC public docket.
• How BC Hydro proposes to allocate Site C capital costs between residential and industrial rate classes.
• Whether the Industrial Customers Group of BC files a coordinated intervention and what positions it advances.
• Guidance from the Ministry of Energy on whether clean-industry tariff incentives will be embedded in the rate design.
• Site C unit commissioning dates, as each unit shifts the supply-demand balance.