Concrete

Cement’s Next Fuel Shift

Published

5 months ago

May 15, 2026

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Jignesh Kindaria highlights how Thermal Substitution Rate (TSR) is emerging as a critical lever for cost savings, decarbonisation and competitive advantage in the cement industry.

India is simultaneously grappling with two crises: a mounting waste emergency and an urgent need to decarbonise its most carbon-intensive industries. The cement sector, the second-largest in the world and the backbone of the nation’s infrastructure ambitions, sits at the centre of both. It consumes enormous quantities of fossil fuel, and it has the technical capacity to consume something else entirely: the waste our cities cannot get rid of.
According to CPCB and NITI Aayog projections, India generates approximately 62.4 million tonnes of municipal solid waste annually, with that figure expected to reach 165 million tonnes by 2030. Much of this waste is energy-rich and non-recyclable. At the same time, cement kilns operate at material temperatures of approximately 1,450 degrees Celsius, with gas temperatures reaching 2,000 degrees. This high-temperature environment is ideal for co-processing, ensuring the complete thermal destruction of organic compounds without generating toxic residues. The physics are in our favour. The infrastructure is not.
Pre-processing is not the support act for co-processing. It is the main event. Get the particle size wrong, get the moisture wrong, get the calorific value wrong and your kiln thermal stability will suffer the consequences.

The regulatory push is real
The Solid Waste Management (SWM) Rules 2026 mandate that cement plants progressively replace solid fossil fuels with Refuse-Derived Fuel (RDF), starting at a 5 per cent baseline and scaling to 15 per cent within six years. NITI Aayog’s 2026 Roadmap for Cement Sector Decarbonisation targets 20 to 25 per cent Thermal Substitution Rate (TSR) by 2030. Beyond compliance, every tonne of coal replaced by RDF generates measurable carbon reductions which is monetisable under India’s emerging Carbon Credit Trading Scheme (CCTS). TSR is no longer a sustainability metric. It is a financial lever.
Yet our own field assessments across multiple Indian cement plants reveal a sobering reality: the primary barrier to scaling AFR adoption is not waste availability. It is the fragmented and under-engineered pre-processing ecosystem that sits between the waste and the kiln.

Why Indian waste is a different engineering problem
Indian municipal solid waste is not the material that imported shredding equipment was designed for. Our waste streams frequently exceed 40 per cent to 50 per cent moisture content, particularly during monsoon cycles, saturated with abrasive inerts including sand, glass, and stone. Plants relying on imported OEM equipment face months of downtime awaiting proprietary spare parts. Machines built for segregated, low-moisture waste fail quickly and disrupt the entire pre-processing operation in Indian conditions.
The two most common failures we observe are what I call the biting teeth problem and the chewing teeth problem. Plants relying solely on a primary shredder reduce bulk waste to large fractions, but the output remains too coarse for stable kiln combustion. Others attempt to use a secondary shredder as a standalone unit without a primary stage to pre-size the feed, leading to catastrophic mechanical failure. When both stages are present but mismatched in throughput capacity, the system becomes a bottleneck. Achieving the 40 to 70 tonnes per hour required for meaningful coal displacement demands a precisely coordinated two-stage process.

Engineering a made-in-India answer
At Fornnax, our response to these challenges is grounded in one principle: Indian waste demands Indian engineering. Our systems are built around feedstock homogeneity, the holy grail of kiln stability. Consistent particle size and predictable calorific value are the foundation of stable kiln combustion. Without them, no TSR target is achievable at scale.
Our SR-MAX2500 Dual Shaft Primary Shredder (Hydraulic Drive) processes raw, baled, or loosely mixed MSW, C&I waste, bulky waste, and plastics, reducing them to approximately 150 mm fractions at throughputs of up to 40 tonnes per hour. The R-MAX 3300 Single Shaft Secondary Shredder (Hydraulic Drive), introduced in 2025, takes that primary output and produces RDF fractions in the 30 to 80 mm range at up to 30 tonnes per hour, specifically optimised for consistent kiln feeding. We have also introduced electric drive configurations under the SR-100 HD series, with capacities between 5 and 40 tonnes per hour, already operational at a leading Indian waste-processing facility.
Looking ahead, Fornnax is expanding its portfolio with the upcoming SR-MAX3600 Hydraulic Drive primary shredder at up to 70 tonnes per hour and the R-MAX2100 Hydraulic drive secondary shredder at up to 20 tonnes per hour, designed specifically for the large-scale throughput that higher TSR ambitions require.

The investment case is now
The 2070 Net-Zero target is not a distant goal for India’s cement sector. It starts today, with decisions being made on the plant floor.
The SWM Rules 2026 are already in effect, requiring cement plants to replace coal with RDF. Carbon credit markets are opening up, and coal prices are not going to get cheaper. Every tonne of coal a cement plant replaces with waste-derived fuel saves money on one side and generates carbon credit revenue on the other. Pre-processing infrastructure is no longer just a compliance requirement. It is a business investment with a measurable return.
The good news is that nothing is missing. The technology works. The waste is available in every Indian city. The government has provided the policy direction. The only thing standing between where the industry is today and where it needs to be is the commitment to build the right infrastructure.
The cement companies that move now will not just meet the regulations. They will be ahead of every competitor that waits.

About the author
Jignesh Kundaria is the Director and CEO of Fornnax Technology. Over an experience spanning more than two decades in the recycling industry, he has established himself as one of India’s foremost voices on waste-to-fuel technology and alternative fuel infrastructure.

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UltraTech becomes first Indian cement firm to cross 2 GW green energy

Published

17 minutes ago

October 7, 2026

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UltraTech Cement has crossed 2 GW of captive green energy capacity, with renewables and waste heat recovery meeting 48 per cent of its power needs.

Mumbai

UltraTech Cement Limited has surpassed 2 GW of installed green energy capacity for captive use, becoming the first cement company in India to achieve the milestone. The Aditya Birla Group company commissioned 116.55 MW of wind capacity at its Inter-State Transmission System-connected wind-solar hybrid project in Barmer, Rajasthan, along with 10 MW of Waste Heat Recovery System capacity at Sarlanagar Cement Works in Karnataka.

With these additions, UltraTech’s cumulative installed green energy capacity has reached 2,024 MW. This includes 1,580 MW of renewable energy capacity and 444 MW of waste heat recovery capacity, together meeting around 48 per cent of the company’s current power requirements.

The company said the milestone reflects the progress of its long-term energy transition strategy. In FY27 so far, nearly one-third of UltraTech’s 76 manufacturing units in India have maintained green energy utilisation above 50 per cent of their electricity requirements, while five units have crossed 95 per cent.

K C Jhanwar, Managing Director, UltraTech Cement Limited, said, “Crossing the 2 GW green energy milestone is the result of a strategy we have pursued consistently over the past decade. Cement is an energy-intensive, hard-to-abate sector, and showing that reliability and growth can go hand in hand with a rapid shift to green energy sets a benchmark for the industry. With nearly half of our power needs now met through green energy, we are significantly less exposed to fossil fuel supply constraints and power price volatility. As we scale up renewables, waste heat recovery and battery storage across our operations, we are building an energy foundation for stable, long-term growth.”

UltraTech commissioned 430 MW of green energy capacity in FY26 and continues to expand its renewable energy and waste heat recovery portfolio.

The company is also progressively integrating Battery Energy Storage Systems across its operations to improve renewable energy utilisation and supply reliability.

In 2025, UltraTech operationalised what it described as India’s first on-site hybrid round-the-clock renewable energy project at Sewagram Cement Works in Gujarat. The project combines solar, wind and battery storage.

As part of its decarbonisation strategy, UltraTech said it has not invested in new captive thermal power capacity for either greenfield projects or brownfield expansions at its integrated units for more than a decade.

The company said its expanding green energy portfolio is helping reduce dependence on conventional grid electricity and fossil fuel-based power, while lowering exposure to fluctuations in coal and electricity prices.

UltraTech aims to increase green energy’s share in its total power mix to 85 per cent by 2030. As a member of RE100, it has also committed to meeting 100 per cent of its electricity requirement through renewable sources by 2050.

UltraTech Cement, the cement flagship of the Aditya Birla Group, has a total grey cement capacity of 210.1 MTPA and white cement and putty capacity of 3.5 MTPA. The company is also a signatory to the GCCA Climate Ambition 2050 and has committed to the GCCA Net Zero Concrete roadmap.

Concrete

Shiva Cement Merges with JSW Cement

Published

3 hours ago

October 7, 2026

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JSW Cement has announced a scheme of arrangement to merge its listed subsidiary Shiva Cement with itself, creating a single unified cement platform. The boards of both companies have approved the proposal, which will require clearances from stock exchanges, the Securities and Exchange Board of India, the National Company Law Tribunal, Odisha Industrial Infrastructure Development Corporation and other applicable authorities.

The transaction is expected to be completed within 12 to 14 months, subject to the necessary approvals from regulators, shareholders and creditors. Under the scheme, JSW Cement will issue 5 equity shares with a face value of Rs. 10 each for every 41 equity shares with a face value of Rs. 2 each held by Shiva Cement shareholders other than JSW Cement.

The company said the merger would consolidate financial, managerial, technical, distribution and marketing resources while reducing administrative duplication and compliance requirements. It would also provide greater funding flexibility, potentially lower financing costs and eliminate inter-company guarantees.

The consolidation is expected to strengthen backward integration by enabling JSW Cement to use Shiva Cement’s clinker manufacturing facility. This would reduce dependence on external clinker procurement and improve supply-chain efficiency. Public shareholders of Shiva Cement would receive direct ownership in JSW Cement, which has a broader institutional investor base and a more liquid listed presence.

JSW Cement acquired a controlling stake in Shiva Cement through transactions that began in January 2017. Shiva Cement operates a clinker facility in Odisha, near the borders of Odisha, Chhattisgarh and Jharkhand, and commissioned a 1 mtpa cement grinding unit at Sambalpur in FY26 through a commercial arrangement with Bhushan Power and Steel.

JSW Cement has 24.10 mtpa of cement grinding capacity and 9.74 mtpa of clinkerisation capacity. Its Indian operations comprise nine plants, including two integrated units, one clinker unit and six grinding units. The proposed merger is intended to simplify the corporate structure and align the financial statements of the two companies.

Concrete

UltraTech’s Kukurdih unit runs fully on green energy

The Chhattisgarh plant has met 100 per cent of its electricity needs through green energy since April 2026.

Published

6 days ago

October 1, 2026

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UltraTech Cement’s Kukurdih Cement Works in Chhattisgarh has met 100 per cent of its electricity requirement through green energy every month since April 2026. Commissioned in 2024, the integrated cement manufacturing unit has an installed grey cement capacity of 3.3 million tonnes per annum.

The plant meets its electricity requirement through a combination of renewable power sourcing and Waste Heat Recovery Systems (WHRS). UltraTech said the combination enables the unit to meet its power needs through green energy while maintaining operational reliability.

Since April 2026, nearly a third of UltraTech’s 76 manufacturing units in India have maintained green energy utilisation above 50 per cent of their electricity requirement. 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 manufacturing network to support greater integration of renewable energy. UltraTech said it has not invested in new captive thermal power capacity at its integrated units, including greenfield projects and brownfield expansions, for more than 10 years.

As of Q1FY27, UltraTech’s captive green energy capacity stood at 1,897 MW, comprising 1,463 MW of renewable capacity from solar, wind and hybrid sources, and 434 MW of WHRS capacity.

Under its RE100 commitment, the company aims to increase the share of green power in its total power mix to 85 per cent by 2030 and 100 per cent by 2050.