Geomechanics.io

  • Free Tools
Sign UpLog In
Built byBoxcut Studio

Geomechanics.io

Geomechanics, Streamlined.

© 2026 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    Projects

    Aluminium’s US comeback hinges on power: grid and smelter economics for engineers

    May 30, 2026|

    Reviewed by Joe Ashwell

    Aluminium’s US comeback hinges on power: grid and smelter economics for engineers

    First reported on MINING.com

    30 Second Briefing

    US efforts to revive primary aluminium hinge on securing long-term, industrial-scale power contracts of 500+ MW per smelter, with advocates warning that data centres and hyperscalers are outbidding producers for grid capacity. Imports of Canadian primary aluminium fell from 2,745 kt in 2024 to 1,950 kt in 2025 after Section 232 tariffs rose to 50%, even as Century Aluminum and Emirates Global Aluminium plan the first new US smelter since 1980 in Oklahoma, still stalled pending a power deal. Rio Tinto’s $1.5 billion AP60 low-carbon smelter expansion in Quebec and EU CBAM-driven demand are meanwhile pulling more Canadian hydropower-based metal towards Europe, risking longer-term diversion of supply away from the US.

    Technical Brief

    • New primary smelters are modelled needing >500 MW dedicated load, equivalent to a mid-sized city’s demand.
    • Only four US primary smelters remain (Massena NY, Warrick IN, Sebree KY, Mt Holly SC) versus 30+ in 1980.
    • Century is spending about $50 million to restart >50,000 t/year of previously idled Mt Holly capacity.
    • Typical smelter development timelines are ~5 years from commitment to metal, constraining rapid reshoring responses.
    • Canada currently operates 10 primary smelters, largely hydropower-fed in Quebec and British Columbia, supplying low‑carbon metal.

    Our Take

    The 500 MW-plus power requirement for a new US aluminum smelter puts it in the same grid-impact class as large data centres or LNG trains, which in North America are already competing hard for firm low-carbon power and transmission capacity.

    Rio Tinto’s C$1.5 billion AP60 low‑carbon smelter expansion in Quebec signals that, within our Materials coverage, new primary aluminum capacity is gravitating to hydro-rich Canada rather than the US, despite the latter’s higher tariff wall.

    With only four operating US primary smelters versus ten in Canada in our database, any Century Aluminum restarts at Mt Holly or similar sites are likely to hinge more on securing long-term renewable PPAs than on incremental changes to Section 232 tariff levels.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    Lawrence Tech critical materials challenge: process and recycling lens for engineers
    Materials
    about 13 hours ago

    Lawrence Tech critical materials challenge: process and recycling lens for engineers

    Centrepolis Accelerator at Lawrence Technological University has launched the Critical Materials Manufacturing Technology Accelerator with USCAR, offering a $100,000 grand prize and pilot-scale commercialisation support for technologies that cut US dependence on imported critical materials and rare earth elements. The Innovation Challenge targets processes and materials that can move rapidly from lab to production for automotive, aerospace, energy, electronics and defence components, including batteries, motors, power electronics and structural parts. Eligible proposals must focus on processing, substitution or end‑of‑life recovery and recycling, not mineral exploration, mining or primary ore extraction.

    Paladin rare earth recycling expansion: supply-chain takeaways for engineers
    Materials
    5 days ago

    Paladin rare earth recycling expansion: supply-chain takeaways for engineers

    Rare earth recycler Paladin EnviroTech is investing over US$5 million to expand its Ohio recovery facility from 40 to 150 tonnes per year by Q3 next year, targeting end-of-life hard drives, EV motors, generators, MRI machines and wind turbines containing neodymium, praseodymium, terbium and dysprosium (up to ~16% Dy in MRI magnets). Working with Western Digital and Critical Materials Recycling, Paladin uses a non-acidic selective leaching process achieving 97–98% rare earth recovery and about 90% total value recovery, feeding mixed rare earth oxides back into Western magnet supply chains.

    Breedon’s new CEO from 2027: strategic implications for materials project teams
    Materials
    9 days ago

    Breedon’s new CEO from 2027: strategic implications for materials project teams

    Breedon has appointed current chief financial officer James Brotherton as its next CEO from 1 January 2027, succeeding Rob Wood after a 12-year tenure with the construction materials group. Brotherton has been CFO since 2021 and co-developed Breedon’s “expand and improve” strategy, which underpinned its expansion into the US market and transfer to the London Stock Exchange’s main market. Wood, who became CEO in 2021, will step down from the board at end-2026 but remain an employee to support the leadership transition until September 2027.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.

    AllGeotechnicalInfrastructureHazardsEnvironmental