Semen Grobogan Semarang Grobogan Cement Plant — Indonesia

Semen Grobogan Semarang Grobogan Cement Plant is a cement plant in Indonesia. Its listed capacity is 2,500,000 t of cement. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length. It is operated by PT Indocement Tunggal Prakarsa Tbk. By capacity it ranks #14 among 16 cement plants in Indonesia. It emits about 540,185 t CO₂e a year from Climate TRACE. That is 0.75% of the CO₂e from the 53 facilities in Indonesia that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 40% below the national median for this sector.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1896880.

In context: how this facility compares

At 2,500,000 t of cement, Semen Grobogan Semarang Grobogan Cement Plant is below the median cement plant in Indonesia (4,300,000 t of cement). Subsector: cement. As cement plant, it requires high process heat (typically 800–1400°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.

Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.

What 540,185 t CO₂e a year looks like

This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

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

Capacity vs largest cement plants in Indonesia

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

Operator

Operated by PT Indocement Tunggal Prakarsa Tbk. All facilities by this operator →

Local climate

Semen Grobogan Semarang Grobogan Cement Plant sits in a tropical monsoon climate zone (Köppen Am), at 7.1°S in the southern hemisphere.

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

Site climate & environmental severity

This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

In this site’s local climate, a bare 150 °C surface sheds about 1233 W/m² to ambient — roughly 0.95× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby sites

The #14 largest of 16 cement plants in Indonesia by listed capacity (Climate TRACE).

Nearby industrial sites

• Semen Indonesia Gresik Rembang Cement Plant · Cement Plant · 639,149 t CO₂
• Solusi Bangun Indonesia Tuban Cement Plant · Cement Plant · 1,508,913 t CO₂
• Semen Gresik Tuban Cement Plant · Cement Plant · 5,147,322 t CO₂
• Pertamina Trans-Pacific Petrochemical Indotama Refinery · Refinery · 384,427 t CO₂

Location

Coordinates -7.08919, 110.62336. View on OpenStreetMap.

Frequently asked questions