Summary: What You’ll Learn
- This article examines the challenges industries face when moving away from coal, including conversion costs, natural gas prices, biomass supply reliability, and equipment compatibility.
- It explains how to compare fuels using calorific value and cost per unit of useful heat, and explores Steamax’s Astillas biomass fuel as an option for industrial users seeking an alternative to conventional fuels.
For industries in Delhi-NCR, fuel selection is no longer just a question of price. Air pollution concerns and changing environmental requirements have increased pressure on manufacturers to evaluate cleaner heating options while maintaining reliable production.
Coal has traditionally been attractive because it is readily available and low-cost. However, industrial users may face restrictions depending on the applicable pollution-control directions and local regulations. Switching fuels can also require capital investment in burners, feeding systems, storage facilities, and other equipment.
Natural gas and biomass are potential alternatives, but neither is automatically the most economical choice for every plant. Industries need to compare fuel properties, operating costs, supply reliability, emissions, and compatibility with existing equipment.
Why Are Industries Looking Beyond Coal?
Coal can provide substantial thermal energy, but its combustion produces pollutants, including particulate matter, sulfur oxides, and nitrogen oxides, depending on coal composition and combustion conditions. Poor combustion and inadequate pollution-control equipment can further increase emissions.
Industrial restrictions can also create uncertainty for businesses. A company that invests in a coal-fired system may later face additional compliance costs or be required to change its operating arrangements.
However, restrictions vary by industry, location, equipment, and applicable regulatory order. Before deciding on fuel conversion, manufacturers should confirm current requirements with the relevant pollution-control authority rather than relying on historical announcements.
Natural Gas: Cleaner Combustion, but What About Cost?
Natural gas is widely used in industrial heating because it can be controlled accurately and generally produces very low particulate emissions at the point of combustion compared with solid fuels.
Why Can Switching to Natural Gas Be Expensive?
1. Conversion costs
A conversion may require a gas connection, pipeline infrastructure, pressure-regulation equipment, safety systems, compatible burners, and modifications to existing heating equipment. The investment depends on the plant’s thermal demand and existing infrastructure.
2. Fuel price
Natural gas prices vary according to supply arrangements, location, consumption category, and contract terms. The original article’s claim that switching from coal to natural gas can increase fuel costs by 40% should not be treated as a universal figure. Each plant needs a calculation based on actual delivered prices and useful heat requirements.
3. Supply reliability
Manufacturers should assess connection capacity, contractual supply conditions, pressure requirements, and the consequences of supply interruptions before converting an entire production line.
Natural gas can be an effective option, but the decision should consider total operating cost rather than fuel price alone.
Biomass: A Renewable Option with Challenges
Biomass fuels, derived from agricultural waste, offer an attractive alternative to fossil fuels. They are renewable and have zero carbon footprints. But like everything, there’s a catch. Despite its promise, biomass also faces significant challenges.
Challenges with Biomass as Industrial Fuel
- Unregulated Industry: Unlike the coal and natural gas industries, which are well-regulated and organized, the biomass sector lacks such structure. Many industries are wary of relying on biomass suppliers due to inconsistent quality, irregular supply, and unreliable services. There have even been cases where adulterated biomass fuels have damaged industrial equipment or led to accidents.
- Seasonal Variations: Biomass quality, availability, and price fluctuate with the seasons. Biomass fuels, especially those with high moisture content like wood or forest-based materials, often see a significant drop in calorific value during the rainy and winter months. It leads to higher costs and reduced fuel efficiency, making long-term commitments to biomass suppliers risky for industries.
- System Compatibility: Biomass fuels are often process into briquettes or pellets for use. However, in the Delhi-NCR region, the price of high-quality biomass pellets (with a calorific value greater than 4000 Kcal/Kg) ranges between INR 12-16/kg. It is the fact that pellet consumption increases by 5-20% compare to coal, makes the cost of using pellets comparable to that of natural gas. Additionally, the limited number of biomass pellet manufacturers means availability is also a concern. Briquettes, while cheaper, are not compatible with the automatic feeding systems used by most modern industrial setups.
Introducing Astillas: A Cleaner, Cost-Effective Fuel
Astillas is design to address many issues plaguing both natural gas and biomass. It’s a cleaner, smokeless fuel compatible with automatic feeding systems and offers a higher calorific value than both briquettes and pellets. Most importantly, it achieves all this without increasing fuel bills, keeping costs on par with coal.

Advantages of Astillas:
- Cleaner Combustion: Astillas burn cleanly, producing little to no smoke, which helps industries comply with strict environmental regulations.
- Cost Efficiency: The fuel costs of Astillas are comparable to those of coal, meaning industries won’t see a spike in their operational costs.
- System Compatibility: Unlike briquettes, Astillas can be easily used with automatic feeding systems, making the transition smoother for industries.
Frequently Asked Questions
Not always. The answer depends on delivered fuel prices, calorific value, system efficiency, and conversion costs. Comparing cost per unit of useful heat gives a more meaningful result.
Higher moisture generally reduces the energy available per kilogram of fuel. More wet fuel may therefore be needed to deliver the same amount of useful heat.
Yes, if the pellets meet the system's fuel specifications and the equipment is designed to handle them. Fuel size, durability, moisture, and ash content can affect performance.
Review the technical specifications, confirm compatibility with the heating system, obtain current commercial terms, and evaluate performance using measured fuel consumption, production output, and emissions data.
Explore Industrial Fuel Alternatives with Steamax
If your plant is evaluating alternatives to coal or facing challenges with biomass quality and fuel costs, Steamax India can help you explore its industrial fuel options.





