Economy & Market

The Best can still get better

Published

8 years ago

April 30, 2018

admin

Having crossed several milestones in energy efficiency and sustainability, Indian cement industry is set to achieve the pinnacle.
Increasing competitive pressures, rising energy prices, coupled with stricter regulations for environmental protection are making energy efficiency and sustainable use of resources a top priority for the manufacturers in the recent years, and the cement industry is no exception.
Indian cement industry has already crossed several milestones on energy efficiency ans sustainability parameters. It has emerged as one of the most energy-efficient industry globally with the lowest carbon footprint in the world and it is among few large scale modern industries that do not produce any hazardous solid or liquid discharge, according to Cement Manufacturers’ Association (CMA).
But the icing on the cake has come from the Cement Sustainability Initiative (CSI) an initiative of the World Business Council for Sustainable Development (WBCSD). In 2015 itself CSI had said, "The member companies from India are more efficient.
They emit less CO2 than the companies in Europe and the US. Their energy consumption is also less." The distinction between Indian firms from those in the US and Europe is technology. Indian companies use the latest technology since many of the cement plants are relatively new, CSI had said. CSI was then a 23-member organisation including nine Indian cement companies, including UltraTech Cement and Dalmia Bharat, and seven global companies with operations in India.
Since then the industry is taking a number of measures aimed at further improving its performance on parameters like specific heat consumption, setting up of waste recovery systems and use of alternate fuels. In fact, all these measures help the companies attain the GreenCo rating, where the core focus is on energy efficiency. For example, the industry has increased the Thermal Substitution Rate (TSR) through use of alternative fuels and raw materials to 4 per cent in 2017, from a meagre 0.6 per cent in 2014. Performance
The cement production process is quite energy intensive, both in terms of electrical and thermal energy consumption (E&TEC). There are plants in India that have achieved energy efficiency figures which are considerable to the world’s best. However, the presence of old plants with high specific energy consumption (SEC) brings down the average figures. Cement production involves the heating, calcining and sintering of blended and ground materials to form clicker. As a result, cement manufacturing is the third largest cause of man-made CO2 emissions due to the production of lime, the key ingredient in cement. Therefore, energy savings during cement production could lead to lower environmental impact.
Improvement in the cement industry’s energy efficiency and reduction of CO2 emissions could be mainly achieved through two procedures:
(i) By changes in the manufacturing and production processes, and
(ii) By adjusting the chemical composition of cement.
Improvement in manufacturing and production processes can be achieved by changing energy management processes and by investing in new equipment and/or upgrades. The same way, changes in the chemical formulation of cement have proved to save energy and reduce CO2 emissions. The same holds good for cement industry, which is a highly capital intensive and competitive sector with long economic lifetimes, making changes in the existing capital stock difficult.
"The average electrical energy consumption in India is around 90-95 kWh/tonne cement (OPC) whereas the best achievement is around 80 kWh/tonne cement (OPC). Similarly, average TEC is around 760 kcal/kg clinker, whereas the best figures achieved are around 680 kcal/ kg clinker. There is scope for reduction in both E&TEC in many of the cement plants in India," says PK Ghosh, Group Managing Director, Ercom Engineers.
The best achievable figures are generally observed for the larger scale plants in India using the state of the art technology when operating at or higher than design levels, Ghosh added.
The contribution of the various departments to power and heat consumption is given in the Table-1.PAT Scheme
Perform, Achieve & Trade (PAT) scheme of the Bureau of Energy Efficiency (BEE), a market-based mechanism focused on reducing specific energy consumption – energy used per unit of production – in large industries, has managed to save a whopping Rs 47,185 crore in three years between 2012 and 2015 in the form of energy savings achieved on the back of robust implementation of energy efficiency measures. The scheme facilitates these large, energy-intensive industries to achieve their legal obligation under the Energy Conservation Act of 2001, while also motivating them with market-based incentives to reduce their energy use and surpass their individual energy saving targets.
A Government of India initiative, PAT’s first cycle covered 478 designated industries from 8 energy-intensive sectors – Aluminium, Cement, Chlor-alkali, Fertilizer, Iron and Steel, Pulp and Paper, Textiles and Thermal power plant. Together, these sectors account for around one-third of India’s primary energy consumption.
"The scheme resulted in saving of energy equivalent to 8.67 million tonnes of oil, exceeding the target of 6.86 million tonnes by about 30 per cent. This also resulted in avoided generation of about 5,635 MW of power, resulting in monetary savings of
Rs 37,685 crore. At the same time Rs 9,500 crore has been saved due to reduction in energy consumption," according to BEE.
The third PAT cycle was also notified from April 1, 2017 for 3 years including 116 new units with a reduction target of 1.06 MTOE. Key processes
The energy efficiency achieved is the result of optimisation between capital expenditure and reducing operating expenses.
Adoption of alternative fuels as a means of increasing cost competitiveness is gaining ground. But the industry has a long way to go before achieving 25% TSR. The Thermal Substitution Rate (TSR) in India has shown a very positive trend year on year, reaching a level of around 4 per cent in 2017. As indicated in the CII approach paper, India plans to achieve 25 per cent TSR by 2025. "In comparison to global standards, we are far behind as in many countries the substitution is in the range of 60-100 per cent," says Milind Murumkar, Advisor AFR, Vicat India.
Another way to reduce energy and process emissions in cement production is to blend cements with increased proportions of alternative (non-clinker) feed stocks, such as volcanic ash, granulated blast furnace slag from iron production, or fly ash from coal-fired power generation. Indian cement plants consume a quarter of the fly ash produced in the country annually, according to CMA. For the long run, cement industry lacks a viable carbon-free alternative, and the IEA suggested scenarios imply a heavy reliance on Carbon Capture and Storage (CCS) cement kilns with xy-fuelling. Waste heat recovery systems are expected to play a much bigger role as more of it gets tapped. "In case of specific heat consumption, approximately 20 per cent losses are through preheater exhaust gases, 12 per cent are through cooler exhaust gases and around 4-5 per cent are radiation losses (for 6 stage preheater – precalciner system with the state-of-the-art cooler), says Ghosh.
The cement grinding department and the raw material grinding are the major consumers of electrical energy. The material transport systems have also to be looked in to ensure that the power consumption is lowered.
Ghosh of Ercom says, "The implementation of MIS (management Information systems) like SAP helps in keeping track of key performance indicators. Management is able to monitor both plant operations and the productivity in a continuous manner for achieving energy efficiency targets."
When comparing the state of the art technologies in terms of sustainability, suitability, performance, robustness, cost-efficiency, patent restrictions (availability), and competence requirements, it can be expected that at least in the short term cement companies are going to be based on pyro processing and grinding mills.
Having tasted the fruits of energy efficiency measures over the recent years, and development of a host of case studies highlighting several achievements and sustainable development, the Indian cement industry is set to reach the pinnacle in energy efficiency in the world.Underutilisation and Energy Efficiency
Consider a Cement manufacturing unit which is designed for clinkerisation capacity of 5000 tpd (tonnes per day) and correspondingly OPC of 5250 tpd for the sake of this discussion.
The specific heat consumption of this precalciner kiln will lie in range of 695-700 kcal/ kg clinker at the design capacity. The operating temperatures for calcination (900-950oC) and clinkerisation (1350-1400oC) will be the same irrespective of the operating level. The gas and material temperatures in the preheater stages will also to be maintained at similar levels. As a result, the total heat loss due to radiation will remain the same at all production levels. This will cause a higher specific heat consumption for lower than design operating levels as depicted in Figure 1.
The specific electrical energy consumption is around 90 kWh/t of Cement (OPC). The electrical drives, the fans and the HT motors are also designed to have maximum efficiency at their design operating levels. As a result, they will have suboptimum energy consumptions at lower than design production levels. This is depicted in Figure 2.
One of the ways to take care of underutilisation is by operating at design capacities and keeping the plant idle for extended periods of time. This may be feasible for those plants with multiple Pyro processing lines. At 80% annual production, the plant can be shut down for a total of 2 more months, and at 70% there are 3 extra months of shut down. However, the clinker storage section will be a constraint for this mode of operation.
Increased number of kiln shutdowns leads to wastage of heat during kiln cool down and start-up. The refractory life also reduced even though these shutdowns are planned. There are maintenance issues if the equipment has extended idle times.
Hence most plants settle for a production level which helps them meet the demands of the market while continuing to keep the kiln under operation for extended levels of time. However, it is important to note that there is a minimum turndown level, below which gas velocities in cyclones will reduce to a value which will not support the efficient heat transfer in the preheater and affect the gas-solid reaction in the calciner.– P. K. Ghosh, Group Managing Director,
Ercom Engineers

– BS Srinivasalu Reddy

Concrete

Nuvoco Vistas, CleanMax Partner for Wind-Solar Hybrid Project in Rajasthan

Published

9 hours ago

September 29, 2026

admin

The project – comprising 20 MW of wind and 26.4 MWdc of solar capacity – will support Nuvoco’s cement operations with cleaner power while strengthening its renewable energy and decarbonisation strategy.

Mumbai, September 29, 2026

Nuvoco Vistas Corp Ltd, part of Nirma Group and one of India’s leading cement companies, has partnered with Clean Max Enviro Energy Solutions Limited (CleanMax), a renewable energy solutions provider for the commercial and industrial (C&I) sector, to develop a 46.4 MW wind-solar hybrid renewable energy project in Rajasthan.

The project will support Nuvoco’s cement operations with cleaner power while strengthening its renewable energy and decarbonisation strategy. It is expected to increase the share of renewable energy in Nuvoco’s power mix, reducing fossil fuel consumption and associated emissions.

Developed by CleanMax, an Independent Power Producer (IPP), at Bhikamkhore, Rajasthan, the project will comprise 20 MW of wind capacity and 26.4 MWdc of solar capacity, along with a 2-MWh Battery Energy Storage System (BESS). Power generated from the facility will be supplied to Nuvoco through the State Transmission Utility (STU) Open Access network.

The hybrid project is expected to generate approximately 100 million units (MU) of renewable electricity annually and help avoid around 1,25,485 tonnes of CO₂ emissions every year across Scope 1 and Scope 2 emissions.

The initiative supports Nuvoco’s ongoing efforts to reduce the carbon intensity of its manufacturing operations through renewable energy adoption, Waste Heat Recovery Systems (WHRS), energy-efficiency measures and increased use of alternative fuels. It also aligns with the company’s DIRE (Digitalisation, Innovation and Renewables) agenda, which focuses on climate action, renewable energy transition, water stewardship, circularity and biodiversity conservation across its manufacturing ecosystem.

Commenting on the initiative, Jayakumar Krishnaswamy, Managing Director, Nuvoco Vistas Corp Ltd, said, “This marks an important step in advancing Nuvoco’s journey towards more sustainable and resilient operations. Our collaboration with CleanMax will increase the share of renewable energy across our Rajasthan operations, strengthening our energy mix while improving long-term cost efficiency and reducing our dependence on conventional power sources. Initiatives such as these reinforce our commitment to operational excellence and responsible growth, while supporting our vision of Building a Safer, Smarter and Sustainable World.”

Kuldeep Jain, Founder and Managing Director, CleanMax, said, “Cement plants run continuously, so the power behind them has to be dependable for decades, not years. We’re seeing manufacturing industries view clean energy as an integral part of their core operations and long-term strategy. Our partnership with Nuvoco reflects that shift, and we’re pleased to support its decarbonisation journey. This wind-solar hybrid project is designed to deliver long-term cost certainty while supporting the Company’s transition to cleaner power.”

Nuvoco has been advancing its sustainability initiatives through renewable energy, operational efficiency and technology-driven solutions. The company operates across Cement, Ready-Mix Concrete (RMX) and Modern Building Materials (MBM) segments, with a presence across East, North and West India.

The company began operations in 2014 with a greenfield cement plant in Nimbol, Rajasthan, and later acquired Lafarge India Limited, which entered India in 1999, along with Emami Cement Ltd in 2020 and Vadraj Cement Limited in April 2025. With planned expansion initiatives, including a new grinding mill at the Arasmeta Cement Plant and multiple debottlenecking projects, Nuvoco aims to achieve a cement capacity of 35 MMTPA.

The company reported total income of Rs 113.62 billion in FY 2025-26, reflecting its continued growth trajectory. Its cement portfolio includes Concreto, Duraguard, Double Bull, PSC, Nirmax and Infracem brands, while its RMX business offers products under Concreto, Artiste, InstaMix, X-Con and Ecodure brands. Nuvoco also provides construction solutions under its Zero M range of modern building materials.

Concrete

UltraTech Cement achieves 100% green energy milestone at Chhattisgarh plant

Published

10 hours ago

September 29, 2026

admin

UltraTech Cement’s Kukurdih Works becomes its first integrated unit to meet 100 per cent electricity needs through green energy every month.

Raipur (Chhattisgarh)

UltraTech Cement Limited, the world’s largest cement company outside China, has achieved a significant decarbonisation milestone, with its Kukurdih Cement Works integrated unit in Chhattisgarh meeting 100 per cent of its electricity requirement through green energy every month since April 2026.

Commissioned in 2024, Kukurdih Cement Works has an installed grey cement capacity of 3.3 million tonnes per annum. The unit achieved this milestone through a combination of renewable power sourcing and Waste Heat Recovery Systems (WHRS), which now collectively meet its entire electricity demand while ensuring operational reliability.

Since April 2026, nearly one-third of UltraTech’s 76 manufacturing units in India have maintained green energy utilisation above 50 per cent of their electricity requirements. Five units, including Kukurdih, have exceeded 95 per cent green energy utilisation. The company is also progressively deploying Battery Energy Storage Systems (BESS) across its network to enable deeper renewable energy integration.

As part of its decarbonisation strategy, UltraTech has not invested in additional captive thermal power capacity for greenfield projects or brownfield expansions at its integrated units for over a decade.

As of Q1FY27, the company’s captive green energy capacity stood at 1,897 MW, comprising 1,463 MW of renewable energy capacity from solar, wind and hybrid sources, along with 434 MW of WHRS capacity. Under its RE100 commitment, UltraTech aims to increase the share of green power in its total energy mix to 85 per cent by 2030 and achieve 100 per cent by 2050.

UltraTech Cement Ltd, the cement flagship company of the Aditya Birla Group, is a $10-billion building solutions company and the largest cement producer globally by sales volume outside China. The company has a total grey cement capacity of 210.1 MTPA and white cement/putty capacity of 3.5 MTPA. It is a signatory to the GCCA Climate Ambition 2050 and has committed to the Net Zero Concrete roadmap announced by GCCA.

Economy & Market

From First Mile to Last Mile

Published

2 days ago

September 28, 2026

admin

Praveen Vashistha, Founder, Gxpress Solutions, speaks about building a holistic logistics network that encompasses latest technology and current challenges faced by logistics service providers.

Logistics may seem to only entail transporting a package from one location to another. However, there is more to this term than just that. Logistics refers to the entire process of controlling all movement, transfers and decisions in the correct way at the right time and cost and with the desired level of visibility.

People nowadays want to receive more than just the delivery. They want quick, efficient, reliable and transparent logistics service. On the other hand, companies are facing higher operating costs, broken supply chains, congested cities, changing habits of consumers and growing complexity of logistics services. In this situation, a full logistics package is gaining importance not only as a competitive advantage but also as a necessity for a successful business.

The main challenge lies in uniting the first mile, the middle mile and the last mile into one seamless process.

The journey begins before the package moves

First-mile logistics may be the least recognised part of the logistics chain, but they have a crucial influence on all that follows.

This stage starts from the moment the shipment leaves the manufacturer, supplier, farm, warehouse or distribution centre. Depending on the industry, first-mile logistics may involve grouping shipments from multiple suppliers, compiling paperwork and checking the inventory before sending the shipments to a central hub.

Flaws in first-mile logistics produce effects later down the supply chain. Delays in cargo pickup can affect warehouse operations; improper packaging can damage goods in transit; and incorrect inventory information may cause stockholding or unnecessary replenishments.

This is why building a reliable network involves simplifying the operations done at the beginning of the supply chain.

Companies require accurate demand forecasts, supplier visibility, standard procedures, and software to capture information from the moment a shipment enters the supply chain. Route planning and fleet management are also important at this stage, especially as it may involve contacting multiple suppliers.

The main goal is simply to make the first mile predictable.

The middle mile: Where scale meets complexity

When products leave the original site, they travel through the ‘middle mile,’ which connects fulfilment centres, warehouses, sorting centres, and regional distribution points. In this phase, logistics networks begin operating on a large scale. A shipment can pass through several facilities before reaching the final destination. Each additional transfer entails the risk of delay or damage and information losses. Accordingly, the ideal solution is not to minimise the number of transfers but rather to optimise them. The use of hub-and-spoke networks, regional distribution centres, and strategically placed distribution centres can help companies shorten transportation routes and optimise distribution costs. Besides, data can be used to determine the optimal placement of inventories.

For instance, a retailer may find that it takes more time and is more expensive to deliver goods to customers if everything is stored in a central warehouse. Meanwhile, regional distribution helps meet the customer’s needs quicker and more efficiently.

The last mile is where the customer judges you

When it comes to the logistics experience, the customer experience comes down to the delivery. While the last mile might comprise a small part of the entire journey in actual distance, it could also entail expensive and difficult processes. Delivery runs through densely populated cities, through traffic jams, through unsuccessful delivery attempts, and through changing consumer preferences and narrowed time frames.

Customers want to have control over their delivery. Delivery means that customers expect to know the exact moment when their order is delivered. They need to receive current updates about their orders and the ability to decide whether they want scheduled deliveries, or whether they want their order to be dropped off at a designated location far from their house.

As a result, last-mile logistics must incorporate both efficiency and experience. The technology may be used to ensure timely and accurate delivery, through such products as route optimisation and real-time delivery tracking.

However, technology is not enough to guarantee success in terms of last-mile delivery. Knowledge of the local area is still an important aspect that contributes to successful delivery.

One network, not three separate operations

First, the common mistake that organisations can make is treating the first mile, the middle, and the last mile separately.

An effective first mile of logistics does not matter much if the shipment waits in a hub for many hours. A perfectly working warehouse does not make a happy customer if the last-mile delivery fails. Therefore, even the fastest last-mile delivery can become an expensive operation if the supply is not well geographically positioned.

The three moments should work together as one whole system.

This implies having a common view on inventory, transport capacities, shipment statuses and demand. The Transportation Management System, Warehouse Management System and order management system should give information to each other instead of acting like separate islands.

That is where real-time information comes into play!

If something happens, such as a vehicle gets delayed, the company has to know that from the start. If not, someone from Customer Service should be informed about the situation.

Visibility is the new infrastructure

Previously, companies had to rely on physical assets, such as warehouses, trucks, and sorting facilities, to create their logistics networks. Today, they have an additional layer of technology providing visibility.

Command-and-control systems now include GPS tracking, Internet of Things devices, bar-coding, RFID, cloud computing, artificial intelligence, and analytics, which allow companies to know what the goods are doing, how well they are doing, and what is going to happen next.

Predictive analytics reveal possible delays. AI-powered forecasting increases availability. Digital dashboards enable the manager to monitor all operations in one place. The efficiency of such technologies is not measured in the amount of information they gather, but rather in their capability of converting data into knowledge.

Logistics managers should be able to answer the following questions: Where is it? When is it supposed to arrive? What causes the delay? What impact does it have? Can it be delivered some other way? How much will it cost?

The sooner the answers are given, the more resilient the logistics system is.

Resilience must be designed into the network

The events of recent years have highlighted the vulnerability of interconnected supply chains. Geopolitical tensions, bad weather, a lack of labour, poorly developed infrastructure and an unexpected spike in demand are some events that can cause problems for logistics systems without prior notice. Thus, companies should create an end-to-end network not just for normal times but also capable of functioning quickly in problematic situations. In order to create such a network, it is necessary to find alternative suppliers, use several means of transportation, create several routes of delivery, and establish inventory. It is also important to use scenario planning to define what to do if the main hub becomes unavailable or any means of transportation is blocked.

Sustainability: Part of the delivery equation

The future of logistics will also be shaped by environmental considerations.

As delivery volumes rise, businesses are under increasing pressure to reduce emissions without compromising service. Better route planning, load optimisation, electric vehicles, alternative fuels, renewable-energy-powered warehouses and consolidated deliveries can all contribute. The most sustainable shipment is often the one that does not require unnecessary movement in the first place.

Better demand forecasting and inventory placement can reduce empty miles and avoid repeated transportation. Consolidating deliveries can improve vehicle utilisation. Reverse logistics can ensure that products, packaging and materials return efficiently instead of becoming waste.

Sustainability, therefore, should not be treated as a separate initiative. It should be incorporated into network design itself.

The future belongs to connected logistics

An end-to-end logistics network ultimately seeks to close existing gaps between various processes.

Every mile of the process should be interconnected with the other miles. Warehouses should be aware of the restraints imposed by transportation. Delivery crews should be able to know at every moment the inventory at their disposal. Clients must have access to this useful information.

Companies that will be successful in this area will not necessarily be the ones with the biggest fleets or the most warehouses. They will simply be the ones that can employ their resources in the most effective manner.

The future of logistics will be represented by an ecosystem consisting of the combination of the physical aspect, digital intelligence, and personnel decisions. Every mile in the process of delivery is important. However, the key advantage here is getting those miles to work together.

For companies, it means having minimal resistance, enhancing their efficiency and improving customer care. For clients, it means simply having the right product delivered at the right time.

About the author: Praveen Vashistha, Founder, Gxpress Solutions,