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  • CarbonCure: concrete breakthrough?

    CarbonCure: concrete breakthrough?

    CarbonCure injects CO2 into concrete during the mixing process, where it mineralizes. The resultant product can most likely save 4-6% of the CO2 intensity of finished concrete. Question marks are explored in the data-file.

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  • CO2 capture: a cost curve?

    CO2 capture: a cost curve?

    This data-file summarizes the costs of capturing CO2. The lowest-cost options are to access pure CO2 streams that are simply being vented at present. Next are blue hydrogen, steel and cement, which could each have GTpa scale. Power stations place next, at $60-100/ton. DAC is carbon negative but expensive.

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  • Construction materials: a screen of costs and CO2 intensities?

    Construction materials: a screen of costs and CO2 intensities?

    This data-file calculates the costs, the embedded energy and the embedded CO2 of different construction materials, both during their production and for ongoing heating and cooling. Insulated wood and cross-laminated timber have the lowest CO2 intensities and can be extremely cost competitive.

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  • Cross laminated timber: costs and economics?

    Cross laminated timber: costs and economics?

    Cross laminated timber costs $1,200/ton, or $500/m3 pa, in order to derive 10-20% IRRs at a production facility costing $2,000/Tpa in capex. Cost lines include input costs of timber, polyurethane resins, labor, electricity, O&M, and capital costs. This data file is our economic model for mass timber production.

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  • Make CO2 into valuable products?

    Make CO2 into valuable products?

    What if CO2 was not a waste product, but a valuable commercial feedstock? We have assessed the top 27 companies at the cutting edge, commercialising CO2 into next-generation plastics, foams, concretes, specialty chemicals and agricultural products. Each company is assessed in detail. 13 are particularly exciting. 21 are start-ups. Aramco, Chevron, Repsol also screen well.

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Energy Units — An Overview

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