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.
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Every record shows who reported the result, what was measured, and the strongest reason it may not transfer to your plant.
61reviewed 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.
Grinding and millingEX-001
Cement-mill control at Rio Branco do Sul
Votorantim Cimentos · Rio Branco do Sul · After 2013; comparison dates not stated
A plant manager reports cement-mill electricity consumption lower by 1.15 kWh/t.
Grinding and millingEX-002
Measured mill-control trials at Bayah
PT Cemindo Gemilang · Bayah integrated plant · 2022–2023
ABB reports cement-mill productivity gains of 9.6% and 12.2%; electricity reductions of 2.5% and 8.5%. Coal-mill reductions were 6.6% and 3.5%.