https://decarbonmachines.com/ Essays on industrial decarbonisation: the temperature limits of electrified heat, process emissions in cement and steel, carbon accounting boundaries and where they get gamed, and retrofit versus replacement economics for long-lived plant. en https://decarbonmachines.com/thirty-year-assets-ten-year-decisions/ https://decarbonmachines.com/thirty-year-assets-ten-year-decisions/ Tue, 28 Jul 2026 00:00:00 +0000 Capital economics Heavy plant is replaced at end of life, not on a policy calendar. That single fact governs which abatement is available when, why retrofit and replacement rarely compete fairly, and why designing for a later conversion often beats doing it now. https://decarbonmachines.com/what-gets-counted-and-by-whom/ https://decarbonmachines.com/what-gets-counted-and-by-whom/ Thu, 09 Jul 2026 00:00:00 +0000 Carbon accounting Scopes describe reporting responsibility, not physical emissions. Once you see that, most of the ways a corporate carbon number moves without anything burning less become obvious — and checkable. https://decarbonmachines.com/chemistry-you-cannot-burn-your-way-out-of/ https://decarbonmachines.com/chemistry-you-cannot-burn-your-way-out-of/ Wed, 24 Jun 2026 00:00:00 +0000 Process emissions In cement the carbon dioxide comes out of the rock. In steel the carbon is a reagent, not a fuel. Neither responds to a fuel switch, which is why these sectors behave differently from everything else. https://decarbonmachines.com/where-electrification-runs-out-of-temperature/ https://decarbonmachines.com/where-electrification-runs-out-of-temperature/ Fri, 05 Jun 2026 00:00:00 +0000 Industrial heat Electricity can reach any temperature you like. What it cannot always do is deliver heat the way a flame does — into the right volume, at the right rate, in the right atmosphere. That is the real ceiling.