The Mill Floor

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

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.

Aug 3, 2026

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

Jul 27, 2026

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

Jul 20, 2026

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

Jul 13, 2026

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