India’s Industrial Heat Blind Spot in Climate Policy

Introduction

India’s clean energy transition is visible in solar parks, wind farms, electric vehicles, green hydrogen projects, and rapidly expanding renewable electricity capacity.

Yet inside factories, a less visible energy system continues to depend heavily on coal, petroleum products, natural gas, pet coke, and conventional biomass.

That system is industrial heat.

Factories require heat to produce steam, melt metals, fire ceramics, refine petroleum, manufacture chemicals, dry food, process textiles, and convert limestone into cement. Despite its importance, industrial heat remains marginal in India’s mainstream renewable energy debate.

A recent policy discussion in The Hindu highlighted the need for a common industrial heat electrification blueprint for India.

The challenge is significant.

“Industry accounts for almost half of India’s final energy use.”

According to the 2026 report Electrifying Industrial Heat in India, industry accounted for approximately 47 percent of India’s final energy consumption in 2022. When purchased electricity and cement process emissions are included, industry was also responsible for nearly half of national carbon dioxide emissions.

The phrase “forgotten 40 percent” should still be used carefully. No official inventory assigns exactly 40 percent of India’s total greenhouse gas emissions to industrial heat alone.

The more accurate conclusion is that industry consumes almost half of India’s final energy, more than 40 percent of industrial energy comes from coal, and a substantial share of direct industrial emissions results from burning fossil fuels to generate heat.

India’s climate policy has made remarkable progress in renewable electricity. However, adding clean power to the grid does not automatically replace the coal boilers, gas furnaces, pet coke kilns, and oil fired heating systems operating inside factories.

Why Industrial Heat Matters

Industrial heat is not a single technology or uniform energy requirement.

A food processing facility may need hot water below 100 degrees Celsius. A textile unit may require steam for dyeing and finishing. A chemical plant may need pressurised steam at several temperature levels. Steel, cement, glass, and ceramic facilities may require continuous temperatures above 1,000 degrees Celsius.

This diversity makes industrial heat more difficult to decarbonise than electricity generation.

Solar panels and wind turbines generate electricity using broadly standard technologies. Industrial heat solutions must be adapted to the temperature, pressure, chemistry, operating schedule, and reliability requirements of each manufacturing process.

Several electric technologies already exist.

Heat pumps can provide highly efficient lower temperature heat. Electric boilers can produce steam. Mechanical vapour recompression can recover and reuse heat from evaporation processes. Induction heating, resistance heating, electric arc furnaces, and thermal batteries can serve medium and high temperature requirements.

However, electrification cannot remove every form of industrial emission.

Cement manufacturing releases carbon dioxide when limestone is converted into clinker. Primary steelmaking requires not only heat but also a chemical reducing agent to separate iron from ore.

These process emissions may require additional solutions such as lower clinker cement, green hydrogen, greater scrap use, material efficiency, electrochemical production, and carbon capture.

An industrial heat strategy must therefore begin with the actual manufacturing process rather than applying one universal renewable energy solution.

Why Renewable Power Capacity Is Not Enough

India’s Nationally Determined Contribution for 2030 includes reducing the emissions intensity of GDP by 45 percent from the 2005 level.

India had already reduced the emissions intensity of its GDP by 37.38 percent by 2022. Non fossil fuel sources also crossed 50 percent of India’s total installed electricity capacity ahead of the original 2030 timeline.

The Union Cabinet has approved an updated target for 2035.

“India commits to reduce emissions intensity of its GDP by 47 percent by 2035 from the 2005 level.”

The updated target also seeks to raise the share of non fossil fuel sources to 60 percent of installed electricity capacity by 2035.

These achievements are important, but installed electricity capacity is not the same as industrial decarbonisation.

A country may possess large quantities of solar and wind capacity while its factories continue burning coal and pet coke for heat. Renewable electricity must be delivered to industrial facilities at a competitive price and converted into reliable heat through suitable equipment.

Factories also face several barriers.

Industrial electricity tariffs can be high. Open access rules differ across states. Grid connections may be unreliable. Network charges, cross subsidy surcharges, storage costs, and power quality concerns can weaken the business case for electrification. The same grid-planning challenge is becoming more important as electricity-intensive infrastructure expands, including the growth of India’s data-centre and AI infrastructure, which adds new demands on power, water, and urban systems.

India must therefore move beyond counting renewable capacity and examine whether clean electricity can competitively replace fossil fuel use inside industrial plants.

The PrepAiro analysis India’s 300 GW Clean Power Milestone Hides a Grid Crisis explains why storage, transmission, and grid readiness are essential for converting renewable capacity into dependable industrial energy.

India Has Policies but No Common Heat Strategy

It would be inaccurate to claim that India has completely ignored industrial emissions.

The country already operates the Perform, Achieve and Trade scheme, the Carbon Credit Trading Scheme, Renewable Consumption Obligations, Green Energy Open Access Rules, the National Green Hydrogen Mission, and several industrial energy efficiency programmes.

India’s Long Term Low Carbon Development Strategy also identifies industrial electrification as an important pathway.

“Process and fuel switching and electrification in manufacturing, as feasible and viable.”

The strategy recognises green hydrogen, circular economy practices, low carbon growth for small industries, and sustainable transition pathways for difficult industrial sectors.

The problem is fragmentation.

Existing schemes address industrial efficiency, renewable electricity, carbon intensity, hydrogen, or finance separately. India still lacks a national industrial heat strategy that connects these policies.

There is no comprehensive national heat map showing where different fuels are used, what temperatures industries require, which technologies can replace fossil systems, and what grid investments will be needed.

Policy currently measures electricity generation and industrial efficiency more effectively than it measures actual conversion of factory heating systems.

Different Industries Need Different Solutions

Industrial heat electrification cannot follow a single pathway because every sector has different technical requirements.

Steel

Secondary steel production can use electric arc furnaces and induction furnaces, particularly when adequate scrap is available.

Primary steelmaking is more difficult. Electrification can supply heat, but it may not replace the chemical role played by coking coal in traditional blast furnaces.

Green hydrogen, direct reduced iron, greater scrap recycling, and emerging electrochemical technologies may therefore be required alongside electrification.

Cement

Electric kilns and thermal storage can reduce fossil fuel combustion in cement manufacturing.

However, electrification cannot eliminate the carbon dioxide released when limestone is chemically converted into clinker.

Deep cement decarbonisation will require lower clinker ratios, alternative construction materials, improved recycling, material efficiency, cleaner electricity, and potentially carbon capture.

Chemicals and Food Processing

Chemicals, food processing, paper, dairy, and several textile operations offer easier early opportunities.

Many of these processes use hot water, drying, evaporation, and steam below 200 degrees Celsius. Heat pumps, electric boilers, and mechanical vapour recompression can provide these services efficiently.

These sectors should become early priorities because commercially mature solutions already exist.

Ceramics, Glass, Textiles, and Foundries

Ceramic kilns, glass furnaces, foundries, and textile clusters often include large numbers of small and medium enterprises.

Electric technologies can reduce fuel consumption and local air pollution, but these businesses face high capital costs, limited technical expertise, unreliable electricity, and difficulty obtaining affordable finance.

The Bureau of Energy Efficiency’s ADEETIE scheme already targets energy efficiency improvements across industrial clusters.

This approach can be expanded to support heat pumps, electric boilers, thermal storage, and shared clean energy infrastructure.

The Economic Opportunity and Adoption Paradox

The Energy Innovation study finds that electrified industrial heat can already be cheaper than heat produced from petroleum products, natural gas, or biomass across several temperature ranges.

Electric alternatives can also compete with coal in three of the five temperature ranges studied. These ranges represent approximately 55 percent of industrial heating currently supplied through combustion.

The study estimates that large scale industrial heat electrification, supported by clean electricity, could reduce industrial energy demand by approximately 22 percent.

It could also reduce future industrial carbon dioxide emissions by around 51 percent compared with a business as usual pathway.

This is possible because many electric technologies are more efficient than direct fuel combustion.

A heat pump, for example, transfers existing heat rather than producing all its heat through combustion. Mechanical vapour recompression recycles heat that would otherwise be wasted. Electric resistance and induction systems can also deliver energy directly to the material being processed.

However, an economically attractive technology may still struggle to attract investment.

Factories worry about installation costs, production downtime, equipment reliability, maintenance capacity, electricity tariffs, and the risk of disrupting an entire manufacturing line.

Small and medium enterprises face an additional financing problem. Banks may not have sufficient experience evaluating industrial heat electrification projects. Companies may therefore struggle to obtain loans even when the technology promises long term savings.

The barrier is not always the absence of technology.

It is often the absence of a reliable system for financing, installing, operating, maintaining, and verifying the performance of that technology.

How India’s Carbon Market Can Help

India’s Carbon Credit Trading Scheme can connect national climate targets with factory level investment.

By January 2026, greenhouse gas emission intensity targets covered 490 obligated industrial entities across seven energy intensive sectors.

Companies that perform better than their assigned emission intensity targets can receive tradable Carbon Credit Certificates.

“Industries, as obligated entities, are envisaged to reduce emissions by improving efficiency and adopting low carbon technologies.”

Industrial heat electrification could become an important source of carbon reductions under this market.

A factory replacing a fossil fuel boiler with an electric heat pump or thermal battery could lower its direct emissions. If the electricity is supplied from increasingly clean sources, the overall climate benefit becomes stronger.

However, the carbon market will work only if emission baselines are credible, monitoring is transparent, and demand for credits is predictable.

There is also a structural limitation.

India’s carbon market primarily uses emission intensity targets. A company may reduce emissions per tonne of production while its total emissions continue rising because overall output is expanding.

This matters because India’s demand for steel, cement, chemicals, glass, and manufactured goods will rise with economic growth, urbanisation, housing, and infrastructure development.

The carbon market should therefore complement industrial standards, clean electricity access, public finance, and sector specific transition plans.

It cannot replace them.

What India’s Industrial Heat Blueprint Must Contain

A credible industrial heat electrification blueprint must include several connected elements.

A national industrial heat map

India needs detailed information on the fuels, temperatures, operating hours, equipment age, waste heat potential, and electricity requirements of major industries and manufacturing clusters.

Without this data, policymakers cannot identify where electrification can deliver the fastest and most affordable reductions.

Efficiency before electrification

Every project should begin with thermal audits, insulation, steam system optimisation, heat recovery, process integration, and energy management.

Electrifying inefficient heat demand would require unnecessarily large equipment and additional electricity generation.

The first objective should be to reduce the amount of heat required. The remaining demand can then be electrified more efficiently.

A technology ladder based on temperature

Heat pumps should be prioritised for lower temperature processes.

Electric boilers and mechanical vapour recompression can address suitable steam and evaporation requirements.

Thermal batteries, resistance heating, induction systems, electric arc furnaces, and electric kilns can serve medium and high temperature applications.

Green hydrogen and carbon capture should be reserved for processes where direct electrification cannot fully solve the technical or chemical challenge.

Affordable and reliable clean electricity

Industrial electrification will fail if factories cannot access dependable electricity at competitive prices.

Green open access rules, banking arrangements, transmission infrastructure, cross subsidy charges, and time based tariffs must be aligned with industrial decarbonisation.

Thermal storage should also be encouraged.

A thermal battery can absorb low cost solar electricity during the day and deliver heat when a factory requires it. This can reduce pressure on the electricity grid while helping industries use variable renewable energy.

Finance for small and medium enterprises

Large industrial companies may possess the capital and engineering capability required for technology conversion.

Small firms often do not.

India should expand interest support, credit guarantees, energy service company models, concessional loans, and cluster based financing for industrial heat projects.

The ADEETIE model can be extended from general energy efficiency to specific thermal electrification technologies.

Demonstration projects and equipment standards

Government supported pilot projects can reduce the perceived risk of unfamiliar technologies.

India also needs performance standards, safety codes, testing facilities, and certification systems for heat pumps, electric boilers, thermal batteries, and high temperature electric equipment.

Demonstrations should be followed by transparent publication of cost, energy savings, maintenance requirements, and emission reductions.

Domestic manufacturing and skills

A large industrial heat transition would create demand for new equipment, components, sensors, controls, insulation materials, and power electronics.

India should develop domestic manufacturing capacity before demand rises sharply.

Engineers, plant managers, technicians, energy auditors, financial institutions, and regulators must also be trained to design, finance, install, and operate electric heating systems.

Accurate carbon accounting

The Carbon Credit Trading Scheme must create clear methods for calculating emission reductions from industrial heat projects.

Rules should account for the electricity source, equipment efficiency, displaced fuel, production changes, and possible interaction with renewable energy certificates.

The framework must also prevent double counting of the same emission reduction across multiple schemes.

Why Industrial Heat Matters for Net Zero 2070

Industrial equipment often operates for several decades.

A boiler, furnace, or kiln installed today may continue operating beyond 2040. Every new fossil fuel system therefore risks creating long term carbon lock in.

India’s steel, cement, chemical, and manufacturing output will grow substantially as the country builds housing, railways, roads, urban infrastructure, renewable energy projects, and industrial capacity. That expansion also raises a wider climate-policy question: how to make new infrastructure resilient as well as low carbon, a challenge visible in India’s urban flooding and smart-cities crisis.

Waiting for the electricity grid to become completely clean before addressing industrial heat would allow another generation of fossil fuel equipment to enter factories.

The better strategy is a parallel transition.

India should continue cleaning the electricity grid while electrifying suitable heat demand, developing solutions for difficult industrial processes, and avoiding new fossil systems where proven electric alternatives already exist.

This approach would deliver benefits beyond climate mitigation.

Industrial electrification could reduce dependence on imported petroleum and natural gas, improve energy security, lower local air pollution, reduce exposure to global fuel price volatility, and create a domestic market for clean industrial technology.

The transition can therefore support both India’s climate commitments and its manufacturing ambitions.

UPSC Relevance

Industrial heat electrification connects several important areas of the UPSC syllabus.

For GS III, it links environmental conservation, energy infrastructure, industrial policy, carbon markets, climate finance, manufacturing competitiveness, and India’s international commitments.

It also raises questions about the relationship between economic growth and environmental sustainability.

For Essay, the topic illustrates how climate policy must move beyond highly visible consumer technologies. Solar panels and electric vehicles are important, but decarbonisation ultimately depends on changing the systems that manufacture steel, cement, chemicals, food, textiles, and construction materials.

A strong UPSC answer should avoid two extreme positions.

Electrification cannot eliminate every industrial emission. Cement chemistry and primary steelmaking require additional solutions.

At the same time, industrial heat is not technically impossible to decarbonise. Many lower and medium temperature applications can already be electrified using commercially available technologies.

The appropriate policy response is sector specific, technology neutral, financially realistic, and sensitive to employment, industrial competitiveness, energy security, and development needs.

Conclusion

India’s renewable energy transition has achieved major progress, but the next phase cannot be measured only through gigawatts of solar and wind capacity.

Industrial heat is where climate policy meets the physical economy.

It determines how steel is melted, cement is produced, food is processed, chemicals are manufactured, textiles are finished, and ceramics are fired.

India does not lack individual climate and energy schemes. It lacks a common industrial heat blueprint connecting clean electricity, factory engineering, carbon pricing, MSME finance, equipment standards, domestic manufacturing, and workforce development.

Net Zero 2070 will remain incomplete unless renewable electricity moves beyond the power grid and begins replacing fossil fuel heat inside factories.

Industrial heat electrification is not a minor technology debate.

It is the missing industrial strategy within India’s climate transition.