Energy and environmental performanceEE-001
Oro Grande kiln-fan VFD replacement
CalPortland Company · Oro Grande Cement Plant · 2022
EPA award profile reports 18% energy-efficiency improvement for the project.
Reviewed case library
Validated experiences.
Conditions included.
Every record shows who reported the result, what was measured, and the strongest reason it may not transfer to your plant.
34reviewed records
Energy and environmental performanceEE-002
Mojave kiln-exhaust baghouse fan improvement
CalPortland Company · Mojave Cement Plant · 2022
EPA award profile reports 40-50% fan-efficiency improvement.
Energy and environmental performanceEE-003
Portland-limestone cement and automatic auxiliary shutdown
Ash Grove Cement Company · Seattle cement plant · 2023
EPA cited the actions while recognizing the plant as ENERGY STAR certified for 2023.
Energy and environmental performanceEE-004
Preheater, combustion, and alternative-fuel integration
GCC · Rapid City and Pueblo cement plants · 2023
EPA cited lower CO2 from alternative fuels while both plants maintained high energy efficiency and 2023 certification.
Energy and environmental performanceEE-005
Thermoelectric generation from cement-plant waste heat
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.
Energy and environmental performanceEE-006
Low-carbon fuel demonstrations in Canada
Lafarge Canada · Richmond and Brookfield cement plants · program outcome published 2024
NRCan reports increased injection; Brookfield displaced up to 15% of traditional fuels with tires and indicated 20-30% GHG reduction per tonne of coal replaced. Richmond's 50% or more is expected capability.
Energy and environmental performanceEE-007
Brevik industrial-scale carbon-capture milestone
Heidelberg Materials · Brevik cement plant · 2025
At opening, first CO2 had been captured, liquefied, and temporarily stored without disrupting cement production. 400000 t/y and 50% are design/target figures, not a completed annual result.
Regulatory and compliance historyRC-001
St. Marys Dixon Clean Air Act settlement
St. Marys Cement and St. Barbara Cement · Dixon Plant, Illinois · 2008
EPA estimated about 2700 t/y NOx reduction and about USD1.9 million control investment.
Regulatory and compliance historyRC-002
CEMEX five-plant Clean Air Act settlement
CEMEX Inc. · Knoxville; Demopolis; Louisville; New Braunfels; Odessa · 2016
EPA described more than 4000 tons of NOx reduction as settlement impact.
Regulatory and compliance historyRC-003
Lehigh multi-plant Clean Air Act settlement
Lehigh Cement and Lehigh White Cement · 14 kilns at 11 facilities · 2019
EPA estimated about 4500 t/y NOx and nearly 1000 t/y SO2 reductions.