Displaying items by tag: California

US: Environmental groups have welcomed the imminent start of work to rehabilitate Heidelberg Materials’ former Permanente cement plant and quarry in California, which ceased operations in 2023. The project, to start on 29 July 2025, will clean up a polluted section of the Permanente Creek, which flows from the Santa Cruz Mountains past the quarry site an into the San Francisco Bay.

The work was required as part of the settlement to a lawsuit filed in 2011 by the Sierra Club against Lehigh Southwest Cement company, which was subsequently acquired by Heidelberg Materials. Under the settlement, the company is required to restore 2.7km of the creek by 2030. The restoration will remove sediment that contains selenium, nickel and other heavy metals that have washed out of the quarry over the years. Workers also will plant native vegetation, build pools for trout, and stabilise slopes. The project's cost is estimated at US$25m, according to Heidelberg Materials’ David Perkins.

Environmental groups have said the work is overdue. "We're relieved that it's finally actually happening," said Katja Irvin, Guadalupe Group chair of the Sierra Club's Loma Prieta Chapter, based in Palo Alto. "There is mining waste in the creek, and concrete barriers in the creek. The slopes have been eroded. All of those problems eventually will be fixed.”

US: More than 50 employees of the CalPortland cement plant near Mojave went on strike on 8 June 2025. A spokesperson for the workers said that it was the first strike at the location since 1981. A striking employee told local press that pay and retirement benefits are among workers’ concerns. The union's contract with the company expired in March 2025.

A week ago, there were two fully-financed cement plant carbon capture, utilisation and storage (CCUS) projects underway in the US.¹ Now, there aren’t.

Projects to decarbonise National Cement Company’s Lebec, California, plant and Heidelberg Materials North America’s Mitchell, Indiana, plant were each set to receive up to US$500m in US Department of Energy (DoE) funding on a one-for-one basis with private investments. The projects were to include eventual 950,000t/yr (Lebec) and 2Mt/yr (Mitchell) carbon capture installations. Additionally, the Lebec plant was to transition to limestone calcined clay cement (LC3) production and the use of alternative fuels (AF), including pistachio shells. Both were beneficiaries of the DoE’s US$6bn Industrial Demonstrations Program (IDP), touted by former US Secretary of Energy Jennifer Granholm as ‘Spurring on the next generation of decarbonisation technologies in key industries [to] keep America the most competitive nation on Earth.’ Disbursement of funding under the programme was frozen by executive order of President Trump in January 2025.^{2, 3}

On 30 May 2025, Trump’s Secretary of Energy announced that the government in which Granholm served had approved spending on industrial decarbonisation without a ‘thorough financial review.’ He cancelled remaining project funding in signature Trumpian style, in list form.⁴ Among 24 de-funded projects, Lebec and Mitchell accounted for US$1bn (27%) of a total US$3.73bn in allocated funds that have now been withdrawn.

It's hard not to feel sorry for the management of the Lebec and Mitchell plant and the teams that had been working to deliver these projects. Heidelberg Materials has yet to comment, though CEO Dominik von Achten was in North America in late May 2025. National Cement Company parent Vicat, meanwhile, conceded the setback with a strong statement of its commitment to CO₂ reduction, to 497kg/t of cementitious product globally.⁵ There was a diplomatic edge to the statement too, however. Echoing the Secretary of Energy, Vicat said that its target remains ‘solely based on existing proven technologies, including energy efficiency, AF substitution and clinker rate reduction’ – as opposed to ‘any technological breakthroughs’ like carbon capture. There are currently no public details of possible back-up financing arrangements for these projects; for now, the best guess at their status is ‘uncertain.’

Alongside these group’s local subsidiaries, another organisation that has to do business daily with the DoE is the American Cement Association (ACA). President and CEO Mike Ireland has continually acknowledged the complex needs of the government, while stating the association’s case for keeping support in place. With regard to these funding cuts, Ireland’s emphasis fell on the latter side: “Today’s announcement is candidly a missed opportunity for both America’s cement manufacturers and this administration, as CCS projects have long been supported by bipartisan members in Congress and bipartisan administrations.”⁶ He reasserted the ACA’s understanding that carbon capture aligns with the administration’s strategy to bolster domestic manufacturing and innovation.

The early 2020s heyday of US carbon capture was founded on gradual, consensus-based politics – unlike its demise. Table 1 (below) gives a non-exhaustive account of recent and on-going front-end engineering design (FEED) studies and the funding they received:

Additionally, MTR Carbon Capture, which is executing a carbon capture pilot at St Marys Cement’s Charlevoix plant in Michigan, previously received US$1.5m in Fossil Energy Research and Development funding towards a total US$3.7m for an unspecified cement plant carbon capture study.¹⁰

Market researcher Greenlight Insights valued industrial decarbonisation initiatives under the Office of Clean Energy Demonstrations (ODEC – the now defunct DoE office responsible, among other things, for the IDP) at US$65.9bn in cumulative returns in April 2025.¹¹ The government has yet to publish any account of how it might replace this growth, or the 291,000 anticipated new jobs that would have come with it. Given all this (along with the extensive financial and technical submissions that accompanied each project), the issues raised by the DoE are presumably budgetary, or else founded in a perception of CCUS as essentially uneconomical.

Carbon capture is very, very expensive. A fatuous reply is that so is climate change, just with a few more ‘verys.’ Hurricane Ian in September 2022 cost US$120bn, more than enough to fund carbon capture installations at all 91 US cement plants, along the lines of the former Lebac and Mitchell agreements.¹² Unlike climate change, however, carbon capture remains unproven. Advocates need to continually justify taxpayer involvement in such a high-risk venture.

At its Redding cement plant in California, Lehigh Hanson successfully delivered a funding-free FEED study, with its partner Fortera raising US$85m in a Series C funding. This presents an alternative vision of innovation as fully-privatised, in which the government might still have the role of shaping demand. This is borne out in the IMPACT Act, a bill which ‘sailed through’ the lower legislature in March 2025.¹³ If enacted, it will empower state and municipal transport departments to pledge to buy future outputs of nascent reduced-CO₂ cements and concretes.

A separate aspect of the funding cancellation that appears decidedly cruel is the targeted removal of grants to start-ups. Two alternative building materials developers – Brimstone and Sublime Systems – were listed for a combined US$276m of now vapourised liquidity. Both are commercially viable without the funding, but the effect of this reversal – including on the next generation of US innovators who hoped to follow in their footsteps – can only be chilling. As non-governmental organisation Industrious Labs said of the anticipated closure of the ODEC in April 2025: “We may see companies based in other geographies start to pull ahead.”

Heidelberg Materials’s Brevik carbon capture plant came online in June 2025, 54 months after the producer secured approval for the project. The term of a presidency is 48 months. This probably means that producers in the US will no longer see CCUS as a viable investment, even under sympathetic administrations.

Even as government funding for CCS flickers from ‘dormant’ to ‘extinct,’ the sun is rising on other US projects. Monarch Cement Company commissioned a 20MW solar power plant at its Humboldt cement plant in Kansas on 27 May 2025. The global momentum is behind decarbonisation, even if economics determines that it will only take the form of smaller-scale mitigation measures at US cement plants into the medium-term future. We can hope that these, at least, might include the AF and LC3 aspects of National Cement Company’s plans at Lebec.

References

1. Clean Air Task Force, ‘Global Carbon Capture Activity and Project Map,’ accessed 3 June 2025, www.catf.us/ccsmapglobal/

2. Democrats Appropriations, ‘Issue 5: Freezing the Industrial Demonstrations Program Undermines U.S. Manufacturing Competitiveness and Strands Private Investment,’ January 2025, www.democrats-appropriations.house.gov/sites/evo-subsites/democrats-appropriations.house.gov/files/evo-media-document/5%20DOE%20Frozen%20Funding%20-%20Industrial%20Demos.pdf

3. Colorado Attorney General, ‘Attorney General Phil Weiser secures court order blocking Trump administration’s illegal federal funding freeze,’ 6 March 2025, www.coag.gov/press-releases/weiser-court-order-trump-federal-funding-freeze-3-6-25/

4. US Department of Energy, ‘Secretary Wright Announces Termination of 24 Projects, Generating Over $3 Billion in Taxpayer Savings,’ 30 May 2025, www.energy.gov/articles/secretary-wright-announces-termination-24-projects-generating-over-3-billion-taxpayer

5. Vicat, ‘Cancellation of funding agreement for the Lebec Net Zero project by the US Department of Energy,’ 3 June 2025, www.vicat.com/news/cancellation-funding-agreement-lebec-net-zero-project-us-department-energy

6. American Cement Association, ‘Statement from the American Cement Association on Department of Energy’s Cancellation of Clean Energy Grants,’ 30 May 2025, www.cement.org/2025/05/30/statement-from-the-american-cement-association-on-department-of-energys-cancellation-of-clean-energy-grants/

7. Gov Tribe, ‘Cooperative Agreement DEFE0031942,’ 30 September 2022, www.govtribe.com/award/federal-grant-award/cooperative-agreement-defe0031942

8. Higher Gov, ‘DECD0000010 Cooperative Agreement,’ 13 May 2024, www.highergov.com/grant/DECD0000010/

9. Gov Tribe, ‘Cooperative Agreement DEFE0032222,’ 7 February 2025, www.govtribe.com/award/federal-grant-award/cooperative-agreement-defe0032222

10. Higher Gov, ‘DEFE0031949 Cooperative Agreement,’ 1 May 2023, www.highergov.com/grant/DEFE0031949/

11. Center for Climate and Energy Solutions, ‘Jobs, Economic Impact of OCED Closure,’ 11 April 2025, www.c2es.org/press-release/oced-closure-could-cost-65-billion-290000-jobs/

12. National Centers for Environmental Information, ‘Events,’ accessed 4 June 2025, www.ncei.noaa.gov/access/billions/events/US/2022?disasters%5B%5D=tropical-cyclone

13. US Congress, ‘H.R.1534 - IMPACT Act,’ 26 March 2025, www.congress.gov/bill/119th-congress/house-bill/1534

US: The Trump administration has cancelled a US$500m grant awarded in December 2024 to National Cement in California for the conversion of its Lebec cement plant into the state’s first net-zero cement facility. The project, valued at US$891m, aimed to switch to limestone calcined clay cement and use agricultural waste as fuel, with CO₂ captured for permanent underground storage, according to the Bakersfield Californian newspaper. It was expected to create 20 - 25 permanent jobs. The US Department of Energy (DOE) said the project was among 24 grants worth US$3.7bn cancelled due to failure “to advance the energy needs of the American people,” and cited economic infeasibility and poor return on taxpayer investment.

US Secretary of Energy Chris Wright said that the previous administration “failed to conduct a thorough financial review before signing away billions of taxpayer dollars.”

Executive director Steven Nadel of the American Council for an Energy-Efficient Economy said “Choosing to cancel these awards is shortsighted, and I think we're going to look back at this moment with regret.”

The project was one of 33 cement, steel and aluminium decarbonisation projects awarded DOE grants in 2023. The project turned up on an April 2025 list of 39 projects the DOE's Office of Clean Energy Demonstrations was considering terminating.

US: Fortera has achieved ISO 9001:2015 certification for its ReCarb Plant in Redding, California, which produces 15,000t/yr of ReAct low-carbon cement. The international certification establishes protocols for quality management systems and ensures delivery of products and services that meet regulatory requirements. Fortera said that the certification process involved months of internal audits, documentation of operating procedures and responding to third party feedback.

US: California Resources Corporation and its carbon management subsidiary, Carbon TerraVault (CTV), have signed a memorandum of understanding (MoU) with National Cement Company of California to develop the ‘Lebec Net Zero’ project, which will produce carbon-neutral cement at National Cement’s Lebec facility in Kern County, California.

CTV will provide transportation and sequestration solutions for up to 1Mt/yr of CO₂ emissions captured from the Lebec plant. The captured CO₂ will be transported and stored in CTV’s underground storage reservoirs. The project will integrate carbon capture technology, use locally sourced biomass fuel from agricultural byproducts and produce limestone calcined clay cement (LC3).

Pending customary approvals, operations are expected to commence in 2031.

US: Oakland, California-based cleantech startup Brimstone has received a US Department of Energy grant worth up to US$189m to establish a plant with a capacity of 80,000t/yr of ‘green’ cement and 20,000t/yr of smelter-grade alumina, according to the San Francisco Business Times. The grant will be paid out in instalments and requires matching funds from new investments, loans and other sources.

The US$378m facility, which is still in the site selection phase, will be located near an existing quarry in order to mine calcium silicate rocks.

CEO Cody Finke said “We’re exclusively looking at brownfield sites. The goal is to build our own plant while utilising existing quarries to ensure a sustainable and economically viable operation.”

Brimstone plans to begin pilot operations in 2025 and aims to have the plant fully operational by the end of the decade. The company is currently testing its decarbonised cement with potential customers from its Oakland research and development facility.

US: Fortera has inaugurated its first ‘green’ cement production facility in North America, located in Redding, California. The 2787m² ReCarb plant operates alongside the existing CalPortland cement plant, capturing CO₂ emissions and mineralising the CO₂ into calcium carbonate for production of the company’s low-carbon ReAct cement. The process reportedly reduces emissions by 70% compared to traditional methods, yielding a tonne of ‘green’ cement for every tonne of limestone input. The facility aims to capture 6600t/yr of CO₂ and to produce 15,000t/yr of ‘green’ cement.

According to Fortera CEO Ryan Gilliam, Fortera currently has 20 upcoming projects with various cement producers, which will cost US$150m each. This includes a plant in the Midwest that will be a 25-fold capacity increase compared to the Redding plant, producing 400,000t/yr of ‘green’ cement.

Last week the US General Services Administration (GSA) announced that it was investing US$2bn on over 150 construction projects that use low-embodied carbon (LEC) materials. The funding is intended to support the use of US-manufactured low carbon asphalt, concrete, glass and steel as part of the Inflation Reduction Act. For readers who don’t know, the GSA manages federal government property and provides contracting options for government agencies. As part of this new message, it will spend US$767m on LEC concrete on federal government buildings projects following a pilot that started in May 2023. The full list of the projects can be found here.

This is relevant because the US-based ready-mixed concrete (RMX) market has been valued roughly at around US$60bn/yr. One estimate of how much the US federal government spent on concrete was around US$5bn in 2018. So the government buys a significant minority of RMX in the country, and if it starts specifying LEC products, this will affect the industry. And, at present at least, a key ingredient of all that concrete is cement.

This isn’t the first time that legislators in the US have specified LEC concrete. In 2019 Marin County in California introduced what it said was the world’s first building code that attempted to minimise carbon emissions from concrete production. It did this by setting maximum ordinary Portland cement (OPC) and embodied carbon levels and offering several ways suppliers can achieve this, including increasing the use of supplementary cementitious materials (SCM), using admixtures, optimising concrete mixtures and so on. Unlike the GSA’s approach in November 2023 though, this applies to all plain and reinforced concrete installed in the area, not just a portion of procured concrete via a government agency. Other similar regional schemes in the US include limits on embodied carbon levels in RMX in Denver, Colorado, and a reduction in the cement used in RMX in Berkeley, California. Environmental services company Tangible compiled a wider list of embodied carbon building codes in North America that can be viewed here. This grouping also includes the use of building intensity policies, whole building life cycle assessments (LCA), environmental product declarations (EPD), demolition and deconstruction directives, tax incentives and building reuse plans.

Government-backed procurement codes promoting or requiring the use of LEC building materials for infrastructure projects have been around for a while in various places. The general trend has been to start with measurement via tools such as LCAs and EPDs, move on to government procurement and then start setting embodied carbon limits for buildings. In the US the GSA’s latest pronouncement follows on from the Federal Buy Clean Initiative and from when California introduced its Buy Clean California Act in 2017. Outside of the US similar programmes have been introduced in countries including Canada, Germany, the Netherlands, Sweden and the UK. On the corporate side members of the World Economic Forum’s First Movers’ Coalition have committed to purchasing or specifying volumes of LEC cement and/or concrete by 2030. Examples of whole countries actually setting embodied carbon emissions limits for non-government buildings are rarer, but some are emerging. Both France and Sweden, for example, introduced laws in 2022 that start by analysing life-cycle emissions of buildings and will move on to setting embodied carbon limits in the late 2020s. Denmark, Finland and New Zealand are also in the process of introducing similar schemes. The next big move could be in the EU, where legislators are considering embodied carbon limits for building materials as part of its ongoing revisions to its Energy Performance of Buildings Directive or the Construction Products Regulation legislations. Lobbying, debate and arguing remains ongoing at present.

To finish, Ireland-based Ecocem spent a period in the 2010s attempting to build a slag cement grinding plant at Vallejo, Solano County, in the San Francisco Bay Area of California. The project met with considerable local opposition on environmental grounds and was eventually refused planning permission. The irony is that slag cement is one of those SCM-style cements that Marin County, also in the San Francisco Bay Area, started encouraging the use of just a few years later. Ecocem held its inaugural science symposium in Paris this week. A number of scientists who attended the event called for existing low carbon technologies to be adopted by the cement and concrete sectors as fast as possible. One such approach is to lower the clinker factor in cement through the use of products that Ecocem and other companies sell. A point to consider is, if Marin County’s code or the GSA’s recent procurement directive came earlier, then that slag plant in Vallejo might have been built. Encouraging the use of LEC building materials by governments looks set to proliferate but it may not be a straightforward process. Clear and consistent policies will be key.

US: The Portland Cement Association (PCA) has announced the winners of its 2023 Safety Innovation and Chairman's Safety Performance Awards.

The Safety Innovation Award Program recognises companies that have developed innovative practices, projects and programs that improve safety at cement plants in the US. Entries are judged in five areas: innovation, ease of use and ease of construction, effectiveness and risk prevention. The recipients were:

• Distribution: Continental Cement, Continental Port Allen Terminal, Chesterfield, Missouri
• Quarry: CalPortland Company, CalPortland Oro Grande Plant, Oro Grande, California
• Pyroprocessing: GCC of America, GCC Tijeras Plant, Tijeras, New Mexio
• General Facility: Mitsubishi Cement Corporation, Mitsubishi Cushenbury Plant, Lucerne Valley, California

The Chairman’s Safety Performance Awards are given to member cement plants that did not have a reportable injury or illness during the year. Fifteen plants achieved this in 2023, which represented more than 10% of all active cement facilities in the US and its territories. The recipients were:

• Argos USA, Atlanta, Georgia
• Argos USA, Newberry, Florida
• Argos Puerto Rico Corp, Dorado, Puerto Rico
• Ash Grove Cement Company (CRH), Durkee, Oregon
• Ash Grove Cement Company (CRH), Midlothian, Texas
• Buzzi Unicem USA, Chattanooga, Tennessee
• Buzzi Unicem USA, Maryneal, Texas
• CalPortland Company, Rillito, Arizona
• GCC of America, Odessa, Texas
• Heidelberg Materials, Bellingham, Washington
• Martin Marietta Materials, New Braunfels, Texas
• Martin Marietta Materials, Midlothian, Texas
• Martin Marietta Materials, Tehachapi, California
• National Cement Company of California, Kern, California
• St Marys Cement (Votorantim), Detroit, Michigan