Abstract
Energy and exergy analysis of the silicon production process. Fetched by the auto-model research pass; the figures below are cited from this source in the model's flow, idiot-index, energetic-index, and market tabs.
Key facts
- Carbothermic reduction of quartz in submerged-arc furnace needs ~11-13 kWh/kg Si electrical energy
- Plus a similar amount of chemical energy from carbon reductants
- Stoichiometric CO2 output ~3.26 kg per kg Si (unavoidable for carbothermic route)
Reviewer note
Real source gathered during the extend-silicon-stack research pass (2026-06-21). Figures attributed to it in the model link back here.