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Techno-Economic and Environmental Feasibility of 100% Electrified Steel and Cement Production Utilizing Surplus Hydropower in Nepal

ネパールの余剰水力発電を利用した100%電化鉄鋼・セメント生産の技術経済的・環境的実現可能性 (AI 翻訳)

Suresh Sapkota

Zenodoプレプリント2026-07-30#エネルギー転換Origin: Global経営インパクト: コスト削減対象セクター: manufacturing
DOI: 10.5281/zenodo.21702879
原典: https://zenodo.org/records/21702879
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🤖 gxceed AI 要約

日本語

ネパールの鉄鋼・セメント産業を100%電化する技術経済性を評価。水力発電を利用し、H-DRI/EAFとプラズマ/電磁誘導窯を組み合わせ、CO2を年間208万トン削減、炭素クレジット収入で最大1185億ルピーを得る可能性を示す。

English

This study assesses the techno-economic feasibility of fully electrifying Nepal's steel and cement industries using surplus hydropower. It models H-DRI/EAF and plasma/induction kilns, showing 2.08 Mt CO2 reduction annually and up to NPR 1185 crore in carbon credit revenue, while reducing import dependence.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本のGX実務では、再生可能エネルギー電源を活用した産業電化のモデルケースとして参考になる。特に、炭素市場収入を投資回収に組み込む手法は、日本の排出量取引制度やGX経済移行債の設計に示唆を与える。

In the global GX context

This paper provides a model for industrial electrification powered by renewables, relevant to global efforts under the Paris Agreement. It demonstrates how carbon market revenues can improve the financial viability of green industrial projects, offering insights for transition finance and emission reduction strategies.

👥 読者別の含意

🔬研究者:Provides a detailed techno-economic model for electrifying heavy industry with renewable energy, useful for comparative studies.

🏢実務担当者:Offers a framework for assessing the financial viability of green steel and cement projects using carbon credits.

🏛政策担当者:Highlights the potential of renewable-based industrial transformation to reduce trade deficits and emissions, informing policy design.

📄 Abstract（原文）

This paper evaluates the transition of Nepal’s two most carbon-intensive heavy industries—steel and cement manufacturing—from traditional fossil-fuel-dependent pathways to 100% electrified processing loops. Leveraging Nepal’s expanding, renewable, and cost-competitive domestic hydropower grid, this study models a 1,500 metric ton per day (t/d) green steel plant utilizing Hydrogen Direct Reduced Iron (H-DRI) tied to an Electric Arc Furnace (EAF), alongside a 3,000 t/d green cement facility driven by Industrial Plasma Torch Arrays and Electromagnetic Induction Kilns. Techno-economic simulation indicates that a dedicated combined continuous grid demand of 381.25 Megawatts (MW) is required to power both installations. While the upfront Capital Expenditure (CapEx) premiums are substantial totaling NPR 1,367 Crore for the electrified cement core alone—the structures become highly cost-competitive when evaluated against volatile imported coking coal. Financial viability is achieved by factoring in a monsoon-surplus electricity tariff of NPR 5.00 per kilowatt-hour (kWh) and monetizing avoided emissions through international compliance carbon markets. The combined initiatives prevent approximately 2.08 million metric tons of Carbon Dioxide (CO₂) emissions annually, generating up to NPR 1,185.55 Crore in passive annual carbon offset revenue. This strategic shift shrinks Nepal’s national trade deficit by replacing over NPR 200 billion in annual raw material and fossil fuel imports with domestic renewable energy, transforming the country from an industrial follower into a pioneer of regional green electrometallurgy.

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