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Foaming Slag Is a Financial Instrument

Aug 10, 2026

You pay a premium in carbon and oxygen. The payout is kWh, panel life, and electrodes. Most shops never check whether the trade is in the money.

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Where the kWh Actually Go

Aug 3, 2026

Four kWh in ten never reach the steel. The balance says which four — and which are worth chasing.

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The Iron You Already Paid For Is in the Slag Pot

Jul 27, 2026

One point of metallic yield is $3-4 per tonne of liquid steel. FeO in the slag is where it goes.

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The Two Numbers on the DRI Cert

Jul 20, 2026

Metallization and carbon decide your heat before the first kWh — most shops never read them.

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The Real Cost of an Hour Off-Power

Jul 13, 2026

An hour off-power doesn't cost you its kWh. It costs you the tonnes you'd have made in it.

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Predictive Maintenance Pays on a Short List of Assets

Jul 6, 2026

PdM is sold as a plant-wide platform. It returns as three or four assets — the rest is dashboard.

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The CBAM Number Your Finance Team Is Modeling Wrong

Jun 29, 2026

A €120/t gap between BF-BOF and scrap-EAF isn't a rounding error. It's a structural moat that widens every year.

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What Stegra's First Heat Won't Prove

Jun 22, 2026

First heat proves the chemistry. The electrolyzer's capacity factor decides the economics.

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Your Electrode Bill Is Three Problems, Not One

Jun 15, 2026

kg/t blends tip wear, side oxidation, and breakage — and you can only fix them one at a time.

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The Mill Floor

Written by active DRI-EAF operators. Anonymous by necessity, specific by design.

© 2026 Between Heats.
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