Reviewed case library
Every record shows who reported the result, what was measured, and the strongest reason it may not transfer to your plant.
Lehigh Portland Cement Company · Union Bridge, Maryland · 1997
Ozone measured 0.6-0.7 ppm in recreated conditions, above 0.7 ppm at a rear portal, and 4.5 ppm on a direct-reading meter.
Holcim Slovensko · Rohoznik cement plant · 2003-2005
Supplier reports bearing replacement interval on main-kiln fans increased to at least 30 months from less than one year.
Siam City Cement Public Company · Factory 1, Saraburi · 2020
Supplier reports 350 t/h at 13.36 kWh/t, more than 8 kWh/t lower, nearly 40% energy saving, and about EUR1.5 million lower annual energy cost.
CalPortland Company · Oro Grande Cement Plant · 2022
EPA award profile reports 18% energy-efficiency improvement for the project.
CalPortland Company · Mojave Cement Plant · 2022
EPA award profile reports 40-50% fan-efficiency improvement.
Amrize · Alpena cement plant, Michigan · reported 2025
Measured 3.1 gross and 2.0 net kWh/t clinker; system thermal efficiency 5.0% peak and 4.3% average. USD241000/y is a typical full-scale projection, not an observed Alpena saving.
