Displaying items by tag: Electricity

Boral admitted this week that high energy costs in Australia had forced it to reduce production levels. Chief executive officer Zlatko Todorcevski revealed to Reuters that the company was temporarily cutting back some unspecified areas of its operations. He also said that it was going to have to pass on growing energy prices directly on its customers.

This has followed mounting alarm at fuel prices in successive financial reports by the building materials company leading to revised earnings guidance being issued in May 2022. Bad weather was responsible for the larger share of the expected additional adverse impact to underlying earnings in its 2022 financial year but around US$10m was anticipated from rising fuel prices. Growing coal and electricity prices were said to be impacting its production and logistics costs, with price rises in January and February 2022 having proved insufficient to keep up with inflation. In a trading update in March 2022 the company said that its exposure to coal prices was unhedged for the second half of its 2022 financial year, to June 2022.

An energy crisis in Australia may seem hard to understand given that the country is one of the world’s biggest exporters of coal and gas. Yet, the country has faced a number of problems with its electricity generation sector in 2022 with disruptions to coal supplies to power stations, outages, ongoing maintenance and a cold winter that adversely affected the market. This led the Australian Energy Market Operator to suspend the country’s main wholesale market on 15 June 2022 in an attempt to stabilise the supply of electricity. New South Wales has also reportedly forced coal mines to prioritise the local market over exports. Energy minister Chris Bowen even asked the residents of New South Wales to try and reduce electricity use in the evenings in an attempt to prevent blackouts. However, with the consumer electricity market now looking more stable, attention has turned to industrial users such as Boral.

Global Cement Weekly has covered energy costs for cement producers a couple of times in the last year. There has been plenty of angst about growing energy costs on cement company balance sheets since mid-2021 as the logistics problems following the lifting of the coronavirus-lockdowns became clear. The biggest story at this time was an energy crisis in China that caused supplies to be rationed to industrial users. This then intensified with the start of the war in Ukraine in February 2022 and energy prices went up everywhere as economic sanctions were imposed upon Russia. One standout was Turkey where cement producers publicly raised the alarm about jumps in coal prices.

Recently, some North American lime producers such as Lhoist North America and the Mississippi Lime Company have been notably bold in announcing price rises due to energy costs and other factors. This week, for example, Lhoist North America said it had raised the price of its lime products by up to 45%. It cited the ‘challenging circumstance’ for all parties at an ‘unprecedented’ time. One alternative to the direct approach of simply putting up prices has been the use of energy surcharges. Japan-based Taiheiyo Cement announced earlier in June 2022 that it was going to introduce a coal surcharge for its cementitious products in September 2022 due to rising energy prices. Its system is based on the coal price with revisions planned every two months. The scheme will run for one year in the first instance. How customers will react to this remains to be seen.

We have looked above at a few disparate examples of the problems that energy costs have been causing cement and lime producers over the last month. These issues look set to continue in an acute phase while the war in Ukraine rages on, but the longer term trends from the economic recovery from coronavirus will undoubtedly last for longer. As examples in Australia and China have shown, local energy crises can easily spill over into the industrial sector as domestic users are prioritised. So, even if cement companies source their supplies carefully, they may face issues if the wider market struggles. Meanwhile, cement producers face the dilemma of justifying price rises to customers adapting to mounting inflation. Taiheiyo Cement has shown one way of doing this. The problems caused by surging energy prices to other cement companies look set to become more apparent in the next few months as reporting of the first half of the year emerges.

Coolbrook has been in the news recently with collaboration deals struck with Cemex and UltraTech Cement. First the Finland-based company officially launched its Roto Dynamic Heater (RDH) technology with a memorandum of understanding signed with Cemex in May 2022. Then, this week, it signed a similar agreement with UltraTech Cement.

The specifics of either agreement are unknown but the target is clearly to build an industrial pilot of an electric kiln – or something like it - at a cement plant. Coolbrook says it has run a pilot of its RDH technology in Finland. Further tests are now scheduled to continue for two years starting from September 2022 at the Brightlands Chemelot Campus at Geleen in the Netherlands. Commercial scale demonstrations are scheduled from 2022 with the hope of commercial use from 2024. Links with Cemex and UltraTech Cement seem to suggest progress. At the same time Coolbrook will be testing its RotoDynamic Reactor (RDR) technology, which promises to electrify the steam cracking process used in plastic manufacturing.

Publically available details on the RDH technology are light. In its promotional material Coolbrook says that it can achieve process temperatures of up to around 1700°C. This is crucial to achieve full clinker formation in a cement kiln. Reaching this temperature with non-combustion style kilns, such as solar reactors, has previously been a problem. Notably, Synhelion and Cemex said in February 2022 that they had managed to produce clinker using concentrated solar radiation. Retrofit possibilities and compact equipment size are also mentioned in the promotional material for the RDH. The former is an obvious attraction but size of equipment footprint is increasingly emerging as a potential issue for cement plants looking to reduce their CO₂ emissions. Rick Bohan from the Portland Cement Association (PCA) presented a summary of the potential and problems of emerging carbon capture and utilisation/storage (CCUS) technologies for cement plants in the US at the Virtual Global CemCCUS Seminar that took place on 14 June 2022. He noted that installing CCUS equipment makes cement plants start to look different (more like petrochemical plants in the view of Global Cement Weekly) and that they may require more space to install it all.

Coolbrook hasn’t been the only organisation looking at kiln electrification. The installation with the most available information on kiln electrification has been the Decarbonate project, led by the VTT, formerly known as the Technical Research Centre of Finland. The project has built a pilot rotary kiln with a length of 8m inside a shipping container. It has a production capacity of around 25kg/hr. The system reportedly uses fixed radiant heating coils around the kiln, surrounded by insulation materials. Early results presented to the 1st Virtual Global CemPower Seminar in late 2021 were that the kiln started up, sufficient calcination was occurring and the system was operated continuously for three days at a temperature of 1000°C with no problems reported. Further research was scheduled to carry on into 2022 with longer trials planned for three different materials.

HeidelbergCement’s subsidiary in Sweden, Cementa, completed a feasibility study on implementing electrified cement production at its Slite plant in 2019. It then said that it was conducting further study with electricity producer Vattenfall as part of CemZero project. This consists of three projects running to 2025. Namely: heat transfer with plasma in rotary kilns; direct separation of carbon dioxide from calcination of carbonate-based raw materials in the production of cement clinker and burnt lime; and carbon dioxide-free products with electrified production - reactivity of cement clinker with secondary additives. HeidelbergCement has since announced plans to build a full scale 1.8Mt/yr carbon capture and storage (CCS) plant at the Slite cement plant by 2030.

How this would fit with any kiln electrification plans is unknown. However, one attraction of moving to an electrical kiln, for all of the projects above, is to cut out the 40 – 50% of a cement plant’s CO₂ emissions that arise from the fuel that is burnt. Taking a kiln electric also makes CO₂ capture easier. Much of the remainder of the CO₂ released comes from the decomposition of limestone during calcination when clinker is created. Substitute out fossil or alternative fuels and the flue gas becomes much purer CO₂.

It is early days for cement kiln electrification but progress is happening both commercially and scientifically. The next step to watch out for will be the first pilot installation at a cement plant. One point to finish with is a comment that Rick Bohan made at the IEEE-IAS/PCA Cement Industry Technical Conference that took place in May 2022: carbon capture is expected to double a cement plant’s energy consumption. Kiln electrification is one potential route for cement production to reach net zero. CCUS is another. If one or both occur then a low carbon future could be a high energy one also.

Watch out for Global Cement’s forthcoming interview with Coolbrook in the September 2022 issue of Global Cement Magazine

For more on CCUS, download the proceedings pack for the Virtual Global CemCCUS Seminar 2022

For more on Synhelion and Cemex read the interview in the December 2020 issue of Global Cement Magazine interview

Guatemala: Cemex has secured its electricity supply for its Guatemalan operations until 2027 through the signing of a renewable power purchase agreement with Enel Green Power. Enel Green Power will supply an estimated 164GWh of renewable energy under the agreement, enabling Cemex to operate one of its Guatemalan cement facilities using 100% renewable energy.

“Transitioning to renewable energy sources is an integral part of our climate action strategy,” said Cemex South, Central America and the Caribbean president Jesús González. “We remain committed to becoming a net-zero CO₂ company and are taking decisive steps to achieve this goal.”

India: India Cements’ fourth-quarter sales were US$183m in its 2022 financial year, which ended on 31 March 2022, down by 4% year-on-year from US$190m in the corresponding quarter of the 2021 Indian financial year. The producer’s net loss was US$1.37m, as against a first-quarter 2021 financial year net profit of US$6.47m. During the quarter, the company’s cement sales volumes fell by 1.4% to 2.63Mt from 2.67Mt, while its clinker sales volumes fell by 88% to 38,000t from 324,000t. For the full 2022 financial year, India Cements’ sales of cement rose by 2% to 9.07Mt from 8.9Mt. Coal costs ended the financial year at US$300/t, five times the 31 March 2021 price of US$60/t.

India Cements said “The spiralling prices of fuel, along with the shortage in availability of the same, affected the margins of the industry. The woes of the industry worsened further with the outbreak of Russia's war with Ukraine resulting in sanctions being imposed on Russia and its exports, fuelling further shortage of coal and oil in the market.”

India: Ramco Cements’ earnings before interest, taxation, depreciation and amortisation (EBITDA) in the 2022 financial year were US$169m, down by 17% year-on-year from US$204m in the 2021 financial year. The producer’s profit after tax also rose by 17%, to US$115m from US$98m.

The Hindu Business Line newspaper has reported that the company attributed its full-year earnings decline to increased fuel costs and reduced cement prices. In the fourth quarter of the 2022 financial year, power and fuel costs rose by 88% year-on-year to US$60.1m from US$31.9m.

India: Shree Cement recorded standalone sales of US$1.84bn in its 2022 financial year, corresponding to a rise of 13% year-on-year from US$1.63bn in the 2021 financial year. Profit after tax for the year was US$306m, up by 2.8% from 298m.

In the fourth quarter of the 2022 financial year, Shree Cement’s energy costs rose by 10% year-on-year and equalled 26% of its sales, while transport costs fell by 1.1% to 23% of sales. Raw materials costs equalled 6.6% of the quarter’s sales.

India: JK Lakshmi Cement’s full-year consolidated sales were US$697m in its 2022 financial year, up by 14.6% year-on-year from US$608m in the 2021 financial year. The group’s net profit was US$61.5m, up by 13.4% from US$54.2m.

The producer said "Despite unabated increases in petcoke and diesel prices, which are hovering at all-time high, JK Lakshmi Cement was able to achieve healthy profitability through continuous improvements in operational efficiencies, energy costs, better product mixes and higher volumes."

Mexico: Cemex and Coolbrook have signed a memorandum of understanding to test technology to electrify the cement kiln heating process. Coolbrook says that its Roto Dynamic Heater (RDH) technology can heat a cement kiln to 1700°C using electrical power. If generated from renewable sources this could potentially remove around 45% of the carbon emissions in cement production that normally arise from the use of fossil fuels. The companies expect the technology to be ready for commercial use at an industrial scale in 2024. They will jointly evaluate the best production site to test and develop this technology.

Ilpo Kuokkanen, the executive chair of Coolbrook, said "Coolbrook has set a target to build a comprehensive ecosystem around its revolutionary technology and to test its use in as many industrial processes as fast as possible. Together with Cemex, we can bring the technology to cement production and achieve significant emission reductions in one of the most energy and CO₂-intensive industrial processes.”

Finland-based Coolbrook is a technology and engineering company that is developing processes to replace the burning of fossil fuels in major industrial sectors. Its RDH has potential applications in cement, steel and chemical production process. Its Roto Dynamic Reactor (RDR) is intended to eliminate CO₂ emissions from the steam cracking process used in the production of plastic.

Austria: The Austrian Cement Industry Association (VÖZ) has launched a roadmap for carbon neutrality by 2050. The initiative follows the 5C approach of Clinker, Cement, Concrete, Construction and Carbonation as prompted by the European Cement Association, Cembureau. Selected targets from the document include reducing the sector’s average clinker factor to 52% by 2040 from 70% in 2020, using carbon-neutral electricity from 2030 and meeting a recycling rate for concrete and demolition waste of 25% in 2050 from 10% in 2022. Sebastian Spaun, the managing director of VÖZ, highlighted the ‘Carbon2ProductAustria’ (C₂PAT) initiative as a key project where capture CO₂ from Lafarge Zementwerke’s Mannersdorf cement plant will be used with hydrogen to produce synthetic fuels, plastics or other chemicals.

Dominican Republic: First-quarter domestic cement consumption in the Dominican Republic rose by 2.9% year-on-year in 2022. The Dominican Association of Portland Cement Producers (ADOCEM) said that producers’ costs rose year-on-year, particularly in the area of fuels, which accounts for 60% of costs. Electricity prices also rose during the quarter.

Association president Felix Gonzalez said "Without a doubt, energy management is a key point in the economic sphere of a cement plant since it makes this industry very susceptible to deficiencies and high tariffs in the electricity sector, as well as to the continuously increasing costs of oil and its derivatives.”

In 2021, ADOCEM members produced 6.5Mt of cement, up by 27% year-on-year from 5.1Mt in 2020. Full-year consumption was 5.5Mt.