Kalyan Bhattacherjee ,Chief Sustainability Officer, Jindal Stainless
The conversation around heavy industry often returns to the same point: how much cleaner energy can be generated, how quickly it can be deployed, and whether the grid will keep pace. It is a familiar discussion, but that’s only part of the story. The harder truth, for sectors like stainless steel, cement and chemicals, is that decarbonization is not primarily an energy problem. It is a capital cycle problem.
Heavy industrial assets like electric arc furnaces, blast furnaces, melt shops, rolling mills, captive power plants are designed to operate for thirty to forty years. Once commissioned, they lock in emissions trajectories that no amount of policy ambition can quickly unwind.
Furnaces, boilers, rolling mills, power systems, waste heat recovery units, and material-handling infrastructure are not replaced overnight. They are upgraded, optimized, and progressively transformed over investment cycles that often run into decades. This is why industrial decarbonization is not merely an energy problem; it is a capital cycle problem.
A decision taken today about a furnace relining or a power plant retrofit will shape a company’s carbon footprint well into decades. The window to influence those emissions is therefore not continuous; it opens only when capital is ready to move. Miss that window, and the next opportunity is often a decade away.
The distinction matters. If decarbonization is an energy problem, you solve it at the utility level and wait for the grid to green itself. If it's a capital cycle problem, you intervene in investment decisions, asset replacement timelines, and financial planning horizons.
The second framing gives industry both more agency and more accountability. It transforms sustainability from a compliance exercise into a strategic investment thesis.
This is precisely the shift that serious industrial operators are beginning to make. Rather than treating decarbonization as a cost centre layered onto existing operations, the more productive question is: when this asset reaches end-of-life, what does the replacement decision look like if carbon is priced into the calculation? How do we extract maximum efficiency from existing infrastructure while positioning the next investment cycle for a lower-carbon future?
Within that longer arc, operational efficiency remains the most immediate lever. Every unit of energy not consumed is a unit that does not need to be cleaned up later. This could be achieved through systematic process optimisation, digital monitoring of energy flows across the plant, and the installation of several waste heat recovery boilers that turn vented heat into usable steam, enabling larger structural transitions that follow.
The transition to cleaner power adds another layer, with renewable energy procurement, captive renewable capacity, power purchase agreements, and market-based instruments which are now becoming mainstream choices for industrial buyers.
But again, the harder questions remain unresolved: how to manage grid intermittency at the scale a melt shop demands, how to lock in tariffs across asset cycles measured in decades, and how to ensure that green electrons are physically available where the furnaces sit.
The issue is not only whether renewable energy exists, it is whether industrial users can secure it at scale, with reliability, bankable contracts, grid access, and long-term price visibility. This is where decarbonization meets capital strategy. These are not problems any single company can solve. They require sustained coordination between industry, distribution utilities and regulators willing to think beyond fiscal-year horizons.
The answers could lie in focusing on operational efficiency, renewable energy, resource optimization, and circularity across operations for an industry like ours. Green hydrogen is one such early step but its role in production will depend on how fast costs fall and how fast supporting infrastructure matures.
Carbon capture, utilisation and storage (CCUS) will play a complementary role for emissions difficult to abate at source. The realistic path is a portfolio: efficiency, renewables, hydrogen, CCUS and circularity working in combination, calibrated to each plant’s vintage and product mix.
Circularity may be the most underappreciated lever in that portfolio. For example, stainless steel is inherently recyclable and can be repeatedly recycled without losing its essential properties. Increasing scrap usage in production helps reduce dependence on primary raw materials, lowers embedded emissions, lowers import exposure and supports resource efficiency. However, circularity is not achieved only inside the factory gate.
It requires a value chain that supports sustainable practices. Suppliers, recyclers, logistics partners, customers, and technology providers all play a role in reducing lifecycle impact.
Industrial decarbonization will not happen through one-time announcements. It will happen through a number of capital decisions: which technology to install, which fuel to shift to, which process to optimize, which supplier to engage, which waste stream to recover, and which future asset to build. The companies that understand this early will be better placed to manage transition risks and capture emerging opportunities.
(Kalyan Bhattacherjee is the chief sustainability officer of Jindal Stainless Ltd where he looks at environment, social and governance goals of the company and is responsible for overall energy strategy.)
Heavy industrial assets like electric arc furnaces, blast furnaces, melt shops, rolling mills, captive power plants are designed to operate for thirty to forty years. Once commissioned, they lock in emissions trajectories that no amount of policy ambition can quickly unwind.
Furnaces, boilers, rolling mills, power systems, waste heat recovery units, and material-handling infrastructure are not replaced overnight. They are upgraded, optimized, and progressively transformed over investment cycles that often run into decades. This is why industrial decarbonization is not merely an energy problem; it is a capital cycle problem.
A decision taken today about a furnace relining or a power plant retrofit will shape a company’s carbon footprint well into decades. The window to influence those emissions is therefore not continuous; it opens only when capital is ready to move. Miss that window, and the next opportunity is often a decade away.
The distinction matters. If decarbonization is an energy problem, you solve it at the utility level and wait for the grid to green itself. If it's a capital cycle problem, you intervene in investment decisions, asset replacement timelines, and financial planning horizons.
The second framing gives industry both more agency and more accountability. It transforms sustainability from a compliance exercise into a strategic investment thesis.
This is precisely the shift that serious industrial operators are beginning to make. Rather than treating decarbonization as a cost centre layered onto existing operations, the more productive question is: when this asset reaches end-of-life, what does the replacement decision look like if carbon is priced into the calculation? How do we extract maximum efficiency from existing infrastructure while positioning the next investment cycle for a lower-carbon future?
Within that longer arc, operational efficiency remains the most immediate lever. Every unit of energy not consumed is a unit that does not need to be cleaned up later. This could be achieved through systematic process optimisation, digital monitoring of energy flows across the plant, and the installation of several waste heat recovery boilers that turn vented heat into usable steam, enabling larger structural transitions that follow.
The transition to cleaner power adds another layer, with renewable energy procurement, captive renewable capacity, power purchase agreements, and market-based instruments which are now becoming mainstream choices for industrial buyers.
But again, the harder questions remain unresolved: how to manage grid intermittency at the scale a melt shop demands, how to lock in tariffs across asset cycles measured in decades, and how to ensure that green electrons are physically available where the furnaces sit.
The issue is not only whether renewable energy exists, it is whether industrial users can secure it at scale, with reliability, bankable contracts, grid access, and long-term price visibility. This is where decarbonization meets capital strategy. These are not problems any single company can solve. They require sustained coordination between industry, distribution utilities and regulators willing to think beyond fiscal-year horizons.
The answers could lie in focusing on operational efficiency, renewable energy, resource optimization, and circularity across operations for an industry like ours. Green hydrogen is one such early step but its role in production will depend on how fast costs fall and how fast supporting infrastructure matures.
Carbon capture, utilisation and storage (CCUS) will play a complementary role for emissions difficult to abate at source. The realistic path is a portfolio: efficiency, renewables, hydrogen, CCUS and circularity working in combination, calibrated to each plant’s vintage and product mix.
Circularity may be the most underappreciated lever in that portfolio. For example, stainless steel is inherently recyclable and can be repeatedly recycled without losing its essential properties. Increasing scrap usage in production helps reduce dependence on primary raw materials, lowers embedded emissions, lowers import exposure and supports resource efficiency. However, circularity is not achieved only inside the factory gate.
It requires a value chain that supports sustainable practices. Suppliers, recyclers, logistics partners, customers, and technology providers all play a role in reducing lifecycle impact.
Industrial decarbonization will not happen through one-time announcements. It will happen through a number of capital decisions: which technology to install, which fuel to shift to, which process to optimize, which supplier to engage, which waste stream to recover, and which future asset to build. The companies that understand this early will be better placed to manage transition risks and capture emerging opportunities.
(Kalyan Bhattacherjee is the chief sustainability officer of Jindal Stainless Ltd where he looks at environment, social and governance goals of the company and is responsible for overall energy strategy.)
(Disclaimer: The opinions expressed in this column are that of the writer. The facts and opinions expressed here do not reflect the views of www.economictimes.com.)
