Nippon G Steel plant

Nippon G Steel plant is a steel plant in Thailand with a reported capacity of 1,800,000 t of steel. It produces crude steel from iron ore (blast furnace) or scrap (electric arc furnace). It is operated by G Steel PCL. By capacity it ranks #1 of 11 steel plants tracked in Thailand. It emits about 165,474 tonnes of CO₂e per year (Climate TRACE) — roughly the tailpipe emissions of 38,572 cars. Its CO₂ per unit of capacity is about 83% below the median steel plant.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1567054.

En contexte: comment cette installation se compare

À 1,800,000 t of steel, Nippon G Steel plant est bien au-dessus de la médiane des steel plant en Thailand (800,000 t of steel). Son CO₂ par unité de capacité est approximativement 143% au-dessus de la médiane des steel plant. Sous-secteur: iron-and-steel. Comme steel plant, elle nécessite une chaleur de procédé intensive (typiquement 800–1500°C) pour ses opérations industrielles essentielles — chaleur qui doit être fournie par des chaudières, fours ou combustion directe, et les pertes par les récipients et tuyauteries non isolés représentent du combustible gaspillé. L'isolation modulaire amovible peut réduire ces pertes de 80–96%, refroidissant les surfaces à ≤45°C, avec des délais d'amortissement souvent inférieurs à 2 ans. Les aciéries brûlent du charbon dans des hauts fourneaux ou utilisent des arcs électriques pour fondre des ferrailles; dans les deux cas, le métal en fusion doit être maintenu au-dessus de 1.500°C et transféré à travers des tuyauteries et récipients chauds étendus.

Comparaison de capacité et d'intensité de CO₂ calculée à partir des données des installations industrielles Climate TRACE; rôle du secteur basé sur la référence d'ingénierie.

What 165,474 t CO₂e a year looks like

This facility's reported annual CO₂e in the everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Capacity vs largest steel plants in Thailand

Reported capacity (t of steel), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Operator

Operated by G Steel PCL. All facilities by this operator →

Local climate

Nippon G Steel plant sits in a tropical savanna climate zone (Köppen Aw), at 12.8°N in the northern hemisphere.

Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

How it compares & nearby sites

The #1 largest of 11 steel plants in Thailand by reported capacity.

Nearby industrial sites

• TY Steel Rayong Steel Plant · Steel Plant · 22,734 t CO₂
• SCGC Map Ta Phut Olefins (MOC), Map Ta Phut, Rayong · Petrochemical · 2,461,089 t CO₂
• Millcon Steel Rayong plant · Steel Plant · 30,312 t CO₂
• SCGC Rayong Olefins (ROC), Map Ta Phut, Rayong · Petrochemical · 1,845,816 t CO₂
• Star Petroleum Map Ta Phut Refinery · Refinery · 1,714,021 t CO₂
• PTT Rayong Refinery · Refinery · 3,517,088 t CO₂

Location

Coordinates 12.79386, 101.24655. View on OpenStreetMap.

Heat loss & insulation profile

A steel plant like this runs hot equipment that sheds heat continuously: reheat & annealing furnaces, ladles, hot-blast stoves, steam & gas ducting (surface/process temperatures around 200–1,200 °C). These surfaces lose energy to the air year-round; removable modular insulation cuts that loss, brings outer surfaces to ≤45 °C, and unclips for inspection.

Indicative recoverable energy

On an already-insulated site (pipes & valves in cladding / jackets), closing the remaining gaps, flanges and damaged sections and switching to removable covers indicatively recovers about 3,700 MWh/yr (≈ 1,300 t CO₂/yr) — scaled to this site's reported CO₂ within its sector. Bare or damaged surfaces recover several times more.

See Inzonex insulation → Estimate your site →

Indicative, not a measurement. Conservative floor for an already-insulated plant; a TIPCHECK on-site audit gives a measured figure. Industry context: EiiF TIPCHECK — industrial insulation can save ~14 Mtoe/yr in EU, payback typically <2 years.

Safety & the no-regret first step

Bare hot surfaces here exceed the touch-safe limit (EN ISO 13732-1); insulation to ≤45 °C is a worker-safety and compliance win. And before electrification, fuel-switching or CCS, eliminating surface heat loss is the cheapest, fastest, lowest-risk step — audit the bare spots first, rip-and-replace later.

External climate finance your country can access

Domestic energy-efficiency grants are limited here; industrial decarbonisation is mainly funded externally:

• Japan JCM (Joint Crediting Mechanism) — Japan co-finances diffusion of decarbonising tech incl. INDUSTRIAL ENERGY EFFICIENCY in partner countries, in exchange for carbon credits. Channels: MOEJ model projects, ADB trust funds, NEDO demonstrations.
• UK International Climate Finance (ICF / ODA) — ~GBP 6bn ODA over 3 yrs; industrial-decarbonisation flows via Climate Investment Funds (CIF) - Clean Technology Fund.
• Green Climate Fund (GCF) + ADB / World Bank / UNIDO — Concessional finance & grants for industrial energy efficiency. E.g. GCF $200M ADB-led India Green Finance Facility; World Bank FP071 'Scaling Up Energy Efficiency for Industrial Enterprises in Vietnam'; ASEAN ACGF energy-efficiency revolving funds incl. SMEs.

CBAM. Exporters of cement, steel, aluminium, fertiliser, hydrogen and electricity to the EU face the Carbon Border Adjustment Mechanism — cutting embedded emissions (efficiency + insulation) lowers the levy.

Routed via national development banks / accredited entities — not a direct factory grant. Verified 2026.

Frequently asked questions