Displaying items by tag: Siam Cement
Thailand: Biochar Life and Siam Cement Group (SCG) have signed a Memorandum of Understanding to jointly develop biochar-infused cement and sustainable building materials. This collaboration aims to utilise biochar in the construction industry and reduce carbon emissions.
The partnership will begin with a pilot project at Chiang Mai University, focusing on constructing biochar-infused cement roads. Biochar Life will evaluate the scalability of biochar production to meet SCG's material requirements. Both companies will engage in research and development to optimise the production and application of biochar in construction, considering environmental benefits and carbon removal credit opportunities.
SCG also plans to extend Biochar Life’s smallholder farmer program, incorporating mobile industrial units and other technologies. This joint effort is directed towards incorporating carbon-negative biochar into building materials. This will lower construction-related carbon emissions, aid in atmospheric carbon sequestration, and improve the durability and performance of these materials.
SCG launches low-carbon cement in Thailand
03 April 2024Thailand: Siam Cement Group (SCG) has introduced a new low-carbon cement, contributing to Thailand's net-zero ambitions. According to the company, SCG is Thailand's first cement manufacturer to produce this eco-friendly cement, reducing CO₂ emissions to as low as 0.05t during production. The new cement reportedly matches or is stronger than traditional Portland cement. SCG achieved this by improving its manufacturing processes, using clean energy sources and waste heat utilisation, leading to a 38% decrease in energy consumption. The company also modified raw material ratios in order to further reduce emissions.
SCG's president of the cement and green solutions department, Surachai Nimlaor, said “Since cement production consumes a considerable amount of energy and emits CO₂ during the process, we decided to find out how we could reduce this impact." He continued “With the initial low-carbon cement formula, we have reduced emissions by 15 to 20%. Moving forward, our goal is to develop new formulas that can reduce carbon emissions by up to 50%.”
Update on heat batteries for cement production, February 2024
21 February 2024Valentine’s Day last week included some ‘hot’ news for the cement sector with the announcement that Electrified Thermal Solutions is preparing to build the first commercial-scale pilot of its Joule Hive thermal battery (JHTB) in San Antonio, Texas. The company is working with the Southwest Research Institute on the project along with Buzzi Unicem USA, 3M and Amy’s Kitchen as industrial partners. Advisors include Imerys. The project update follows the award of a US$5m grant from the US Department of Energy (DOE) in late January 2024.
The funding description from the DOE’s Industrial Efficiency & Decarbonization Office reports that the end goal is to “turn intermittent renewable electricity into constant industrial grade heat” that can replace fossil fuel usage. Electrified Thermal Solutions aims to test its JHTB thermal energy storage system, which uses electrically conductive refractory bricks, to convert and store electricity as heat at temperatures higher than 1700°C. The JHTB power ranges between 1 - 200MW of thermal output, with duration up to tens of hours, enabling ‘very affordable’ high temperature energy storage and on-demand heat. Notably, it can charge and discharge simultaneously, allowing a continuous heat supply.
Electrified Thermal Solutions is not alone in targeting the cement sector. As Global Cement Weekly has covered previously energy storage is a growing topic of interest with a few large-scale electrical battery units running at cement plants in Pakistan and Taiwan. The other big name in thermal batteries for cement production is Rondo Energy. Both Electrified Thermal Solutions and Rondo Energy are using modular three-dimensional arrays of refractory bricks to store thermal energy and then release it, although they are likely to have key proprietary differences. However, Rondo Energy appears to be further along the industrial adoption process so far. Titan Cement and Siam Cement Group (SCG) invested in Rondo Energy in 2022. Then in July 2023 SCG and Rondo Energy said that they were planning to expand the production capacity of a heat battery storage unit at an SCG plant from 2.4 GWh/yr in mid-2023 to 90GWh/yr. For more information on Rondo Energy read the feature by CEO John O’Donnell in the January 2023 issue of Global Cement Magazine.
The reason that this matters, as partly explained above, is that fossil fuels contribute about one third of the CO2 emissions created by heating up the kiln in cement production to make clinker. This is dropping globally due to the uptake of alternative fuels, but burning alternative fuels emits gross CO2, however you account for the emissions. Mass adoption of thermal batteries by the sector could potentially cut out this double-accounting and reduce that third down to the carbon footprint of the refractory bricks used. This would then create knock-on issues concerning what to do with the waste streams instead but that is not a problem for the cement sector. These are worries for another day, as we first need to see how thermal batteries work at scale at a cement plant.
A recent feature in the Economist considered whether the mass adoption of electrical power from renewable sources might be an increasingly viable path to decarbonising industry. Geopolitics, faster-than-expected growth in renewables and new technology are all doing their bit to make this possible. As with so much of the carbon agenda it may alter the very concept of the traditional cement production line or at least the speed of change. Just imagine how a future cement plant might look, decked out with a electrical micro-grid, a heat battery, an oxy-fuel kiln, a carbon capture unit and either a chemical plant or gas pipeline junction. Will it happen? Who knows… but it is an exciting time for the cement sector.
Siam Cement Group gains 3% stake in Avantium
12 February 2024Netherlands: Siam Cement Group has acquired new shares in electrochemistry start-up Avantium through its affiliate Senfi Ventures. Reuters has reported that the Thailand-based group now holds a 3% stake in Avantium, through total investments of US$4.82m.
Avantium’s technologies include the Volta system, which produces commercial chemicals using captured CO2. Avantium previously tested the system at a Titan Cement Group cement plant in Greece.
Siam Cement Group raises sales in 2023
24 January 2024Thailand: Siam Cement Group (SCG) reported sales of US$14bn in 2023, down by 12% year-on-year from 2022 levels. Nonetheless, its profit grew by 21% to US$726m, largely attributed to gains from fair value adjustments of investments in the first half of 2023. The group’s cement and construction products business incurred a loss due to local impairments of cement plant assets.
As of 31 December 2023, SCG's total assets amounted to US$22bn, down by 1.4% year-on-year from the end of 2022.
Siam Cement Group’s sales fall in third quarter of 2023
29 November 2023Thailand: Siam Cement Group (SCG) recorded sales of US$3.62bn during the third quarter of 2023. This represents a fall of 12% year-on-year. Business World News has reported that the producer attributes the decline to the on-going ‘slow economic revival’ in Southeast Asia. Nonetheless, chief executive officer Roongrote Rangsiyopash said that he expects growth to accelerate, especially in Indonesia, where construction of the new capital city, Nusantara, is underway in East Kalimantan. SCG reported a third-quarter operating profit of US$86.9m, up by 26% year-on-year.
Rangsiyopash said “SCG has continuously adjusted its business strategy and has operated with caution and prudence, thereby maintaining financial stability.”
Siam Cement Group Vietnam’s sales drop in first nine months of 2023
16 November 2023Vietnam: Siam Cement Group Vietnam’s sales dropped by 30% year-on-year in the first nine months of 2023, to US$901m. Việt Nam News has reported that this corresponds to 8.4% of Siam Cement Group (SCG)’s consolidated sales. Vietnam is SCG’s main overseas market, ahead of Indonesia, where it recorded US$760m (7.1%) of sales.
Siam Cement Group’s sales fall in third quarter of 2023
27 October 2023Thailand: Siam Cement Group’s sales dropped by 12% year-on-year to US$3.47bn during the first nine months of 2023. The group’s net profit remained level year-on-year, at US$67.4m.
Thailand: China-based intelligent dumptruck supplier Waytous has partnered with Siam Cement Group (SCG), as well as Thailand Advanced Info Service, Huawei, and Zhengzhou Yutong Mining Equipment, to develop full-scope automated operating systems for limestone mines. SCG will host a study at its Saraburi limestone mine in Central Thailand. The study will use Waytous’ driverless vehicles, supported by 5G, AI, cloud computing and new battery technologies.
Waytous CEO Chen Long "We've carried out two phases of unmanned mining research for this project and found the most comprehensive, efficient, and effective unmanned solution for cement mines in Saraburi.”
Storing energy at scale at cement plants
27 September 2023Taiwan Cement has just commissioned a 107MWh energy storage project at its Yingde plant in Guangdong province, China. Subsidiary NHOA Energy worked on the installation and has been promoting it this week. The battery storage works in conjunction with a 42MW waste heat recovery (WHR) unit, a 8MWp solar photovoltaic unit and a proprietary energy management system. It is expected to store about 46,000MWh/yr of electricity and save just under US$3m/yr in electricity costs.
NHOA Energy, formerly known as Engie EPS before Taiwan Cement bought a majority stake in it, claims it is one of the largest industrial microgrids in the world. We can’t verify this for sure, but it is definitely large. For comparison, the 750MW Vistra Moss Landing Energy Storage Facility in California often gets cited as the largest such facility in the world. This is run by a power company, as are many other large battery energy storage systems. In its annual report for 2022 Taiwan Cement said it was planning to using NHOA’s technology to build seven other large-scale energy storage projects at sites in Taiwan including its integrated Suao, Ho-Ping and Hualien cement plants.
The aim here appears to be supplying renewable electricity to the national grid in Taiwan. Taiwan Cement is diversifying away from cement production, with an aim to derive over 50% of its revenues from other activities besides cement by 2025. In 2022 cement and concrete represented 68% of its sales, while its electricity and energy division, including power supply and rechargeable lithium-ion batteries, represented 29%. The company is also not using its own batteries at the Yingde plant. Instead it is using lithium iron phosphate batteries supplied by Ningde Times. This is worth noting, as the cement producer’s batteries are used in vehicles.
Global Cement regularly reports news stories on cement plants that are building photovoltaic solar power arrays. However, so far at least, energy storage projects at scale have been rarer. One earlier example of an energy storage system loosely associated with a cement plant includes the now decommissioned Tehachapi Energy Storage Project that was situated next to the Tehachapi cement plant in California. That project tested using lithium ion batteries to improve grid performance and integrate intermittent generation from nearby wind farms. It is also worth noting that Sumitomo Osaka Cement’s sister company Sumitomo Electric is one of the world’s larger manufacturers of flow batteries, although no installation at a cement plant appears to have happened yet. In simple terms, flow batteries are an alternative to lithium ion batteries that don’t store as much energy but last longer.
More recently, Lucky Cement in Pakistan started commercial operation of a 34MW solar power plant with a 5.59MWh energy storage unit at its Pezu plant in Khyber Pakhtunkhwa in late 2022. Reon Energy provided the equipment including a lithium-ion based battery approach to the storage. Then, in March 2023, Holcim US said that it was working with TotalEnergies to build solar power capacity and a battery energy storage unit at the Florence cement plant in Colorado. TotalEnergies will install, maintain and operate a 33MW DC ground-mounted solar array and a 38.5MWh battery energy storage system at the site. Operation of the renewable energy system is expected to start in 2025.
Away from electrical batteries, the other approach to energy storage at cement plants that has received attention recently from several quite different companies has been thermal batteries. The two prominent groups using them at different scales are Rondo Energy and Synhelion. The former company has developed its Heat Battery technology, which uses refractory bricks to absorb intermittent renewable energy and then supply the energy back as a steady stream of hot gas for use in a cement plant mill, dryer, calciner or kiln. Both Siam Cement Group (SCG) and Titan Cement have invested in Rondo Energy. In July 2023 SCG and Rondo Energy said that they were planning to expand the production capacity of a heat battery storage unit at a SCG plant to 90GWh/yr. Synhelion, meanwhile, has been working with Cemex on using concentrated solar power to manufacture clinker. It achieved this on an ‘industrially viable scale’ in August 2023. It has since been reported that the companies are working on building a small scale industrial plant at Móstoles near Madrid by 2026. Crucially for this discussion though, the process also uses a thermal energy storage unit filled with ceramic refractory material to allow thermal energy to be released at night, and thus ensure continuous operation.
The examples above demonstrate that some cement companies are actively testing out storing energy at scale. Whilst this will not solve the cement sector’s process emissions, it does potentially start to make using renewable energy sources more reliable and reduce the variable costs of renewable power. Whether it catches on remains to be seen. Most of these kinds of projects have been run by power companies and that is where it may stay. It is instructive to note that Reon Energy was the only company to state that its battery-based energy storage system has a life-span of 8 - 12 years. Our current vision of a net-zero future points to high electrical usage but it may be shaped by how good the batteries are… from our phones to our cars to our cement plants.
For more information on Rondo Energy read the January 2023 issue of Global Cement Magazine