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Search results for: “steel”

  • Recycling: a global overview of energy savings?

    Recycling: a global overview of energy savings?

    1GTpa of material is recycled globally, across steel, paper, glass, plastics and other metals. On average, 35% of these materials are produced from recycled feeds, saving 70% of the energy and CO2, with upside in the Energy Transition.

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  • Bill of materials: electronic devices and data-centers?

    Bill of materials: electronic devices and data-centers?

    Electronic devices are changing the world, from portable electronics to AI data centers. Hence what materials are used in electronic devices, as percentage of mass, and in kg/kW terms? This data-file tabualates the bill of materials, for different devices, across different studies.

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  • Advanced Conductors versus ACSR: costs and companies?

    Advanced Conductors versus ACSR: costs and companies?

    Advanced conductors have 2x higher amperage capacities and temperature limits than standard Aluminium Conductor Steel Reinforced (ACSR) used in AC transmission lines. This data-file screens Advanced conductors versus ACSR on dimensions such as tensile strength, performance and costs, and also screens leading companies.

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  • Vehicle mass: what opportunities to improve fuel economy?

    Vehicle mass: what opportunities to improve fuel economy?

    Steel comprises c50% of the volume and c80% of the weight of materials in a vehicle. Each 1% reduction in mass yields a 1% improvement in fuel econome. Carbon fiber repays its extra costs after 30-70k miles, while hybridisation repays its extra costs after 10-30k miles.

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  • Bio-coke: energy economics?

    Bio-coke: energy economics?

    Bio-coke is a substitute for coal-coke in steel-making and other smelting operations. We model it will cost c$450/ton, c50% more than coal-coke, but saves 2 – 2.5 tons/ton of CO2. Abatement costs can be as low as $70/ton. Although not always, and there are comparability issues.

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  • Wind power: energy costs, energy payback and EROEI?

    Wind power: energy costs, energy payback and EROEI?

    This data-file estimates 3MWH of energy is consumed in manufacturing and installing 1kW of offshore wind turbines, the energy payback time is usually around 1-year, and total energy return on energy invested (EROEI) will be above 20x. These estimates are based on bottom-up modelling and top-down technical papers.

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  • Commodity demand: how sensitive to GDP growth?

    Commodity demand: how sensitive to GDP growth?

    How sensitive is global commodity demand to GDP growth? This 15-page report runs regressions for 25 commodities. Slower GDP growth matters most for oil markets, which are entering a new, more competitive, era. China is also slowing. But we still see bright spots in gas, metals, materials in our 2025 commodity outlook.

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  • Global coal supply-demand: outlook in energy transition?

    Global coal supply-demand: outlook in energy transition?

    Global coal use likely hit a new all-time peak of 8.8GTpa in 2024, of which 7.6GTpa is thermal coal and 1.1GTpa is metallurgical. The largest consumers are China (5GTpa), India (1.3GTpa), other Asia (1.2GTpa), Europe (0.4GTpa) and the US (0.4GTpa). This model presents our forecasts for global coal supply-demand from 1990 to 2050.

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  • Industrial energy and electricity consumption by sector?

    Industrial energy and electricity consumption by sector?

    The average factory consumes 9GWH of energy per year, of which 5GWH is thermal heat and 4GWH is electricity. Of the electricity c50% is for rotating machinery, c10% for electric heat, c10% for process cooling, c7% for electrochemical processes, c10% for facility HVAC and c6% for lighting.

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  • Electrical conductivity: energy transition materials?

    Electrical conductivity: energy transition materials?

    Electrical conductivity of energy transition materials is tabulated in this data-file. ‘The action’ takes place in the range of 10^-8 to 10^-3 Ohm-meters, including silver in solar cells, copper in renewables and EVs, aluminium transmission lines, batteries, and solar semiconductors.

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