Assessing Biomass Fuel in SME Emissions Accounting

A site that replaces some fossil fuel with renewable agro-residue fuel may reduce reported fossil-fuel combustion emissions in its Scope 1 inventory. The amount depends on actual fuel displacement and the reporting method; biogenic CO₂ is accounted for separately under IPCC rules. This is not a zero-emissions claim.

What are Scope 1 Emissions?

Under the GHG Protocol framework, a manufacturing unit commonly groups emissions into three scopes:

• Scope 1 (Direct Emissions): Emissions from fuels combusted directly on-site, such as coal, lignite, furnace oil, or natural gas burned in boilers, thermic fluid heaters, or kilns.
• Scope 2 (Indirect Emissions): Emissions associated with purchased electricity consumed by the factory.
• Scope 3 (Supply Chain Emissions): All other indirect emissions occurring in the company's value chain.

For any facility that combusts fuel on site, those direct emissions are included in Scope 1 under its applicable inventory method. The share of a site's footprint varies and should be calculated from its own data.

Check Reporting and Customer Requirements

Reporting expectations differ by customer, lender, sector and applicable rules. Confirm which evidence and accounting method a particular stakeholder requires.

1. Supply-chain requests: A customer may request emissions data from suppliers. Check the exact request, boundary and reporting period before preparing figures.

2. Financing: If a project is presented to a lender, confirm its current eligibility criteria and evidence requirements directly.

3. Permits: Pollution-control consent conditions and greenhouse-gas reporting are separate matters. Check the requirements that apply to the facility.

Compare Energy and Emissions Options

Compare options using the site's process requirements, actual quotations, energy use and applicable emissions-accounting method:

Typical buyer question: What emissions reduction can we document for lenders and customers, and what proof do they accept?

Steps for SMEs to Get Started

A fuel change requires site-specific technical and commercial review:

• Baseline: Record fuel consumed, delivered cost, useful-heat demand and reporting method.
• Compatibility: Have the boiler OEM or a qualified engineer assess fuel and handling-system suitability; do not assume a drop-in change.
• Supply terms: Confirm availability, delivery schedule, price basis and written contract conditions; a long-term agreement does not guarantee unchanged prices or uninterrupted supply.

Conclusion

Biomass fuel is one option to assess when a site uses fossil fuel for process heat. Any cost or emissions result depends on the fuel actually displaced, equipment, delivered prices and the facility's reporting method. Document assumptions and avoid presenting a purchase as a guaranteed emissions or financial outcome.

Start With a Fuel and Steam Baseline

Before changing fuel, record the site's current fuel quantities, useful-heat demand and equipment operating hours for a period representative of its operations. Dividing fuel energy input by useful heat delivered can provide a working efficiency estimate when the measurements and system boundaries are appropriate. Our guide to calculating boiler efficiency explains the method.

Estimating Fossil CO2 Avoided on Your Own Numbers

A defensible estimate uses a cited emissions factor and the fossil fuel actually displaced for equivalent useful heat, not simply the biomass tonnage purchased. The CEA factor for Indian coal is about 92.5 gCO₂/MJ, or about 1.55 kg CO₂ per kg of 4000 Kcal/kg coal. Biomass is a renewable agro-residue fuel; its biogenic CO₂ is accounted for separately under IPCC rules. Record the factor, boundary, displaced fuel and assumptions so the calculation can be reviewed.

Match the Measure to the Process

Equipment to assess for fuel switching

• Steam boilers and thermic fluid heaters: have the OEM or a qualified engineer assess fuel, feeder, grate and operating suitability.
• Hot-air systems: assess the existing furnace, heat-exchanger arrangement and process requirements with the equipment supplier.

Where it is only part of the answer

• Electric-only loads such as motors and compressors, which fuel changes do not touch.
• Direct-flame processes that depend on gas or oil burner control.
• Boilers with suspected heat losses: assess efficiency measures alongside any fuel change with a qualified engineer.

White coal is not a 1:1 replacement for all coal. Coal grades are set by GCV, from G-12 at 3700 to 4000 Kcal/kg up to G-6 at 5500 to 5800 Kcal/kg, and a higher-grade coal carries more energy per kilogram. Our briquettes and agro pellets are specified at 3800 to 4200 Kcal/kg, so fuel quantity by weight must be recalculated for the grade you use today. The calculator helps with that conversion.

Efficiency Measures to Do Alongside the Fuel Change

1. Ask a qualified engineer to assess steam traps, leaks and uninsulated piping.
2. Evaluate condensate recovery or heat recovery against the site's design and measured operating conditions.
3. Use the boiler OEM's procedures and suitable instruments when evaluating combustion settings.
4. Where practical, measure fuel input and useful heat so operating changes can be assessed from site data.

Reporting Honestly to Customers and Lenders

If a customer, lender or reporting framework requests emissions figures, state the method, factor, fuel quantities, boundary and reporting period. Avoid language that implies more than the data shows, and do not describe a fuel purchase as earning credits. Under the CCTS, compliance targets apply to notified sectors and entities, and credits come only from obligated entities beating targets or from registered projects under approved methodologies. Read our carbon credits and ESG note before making any statement about credits, and see how biomass pellets reduce carbon footprint for the accounting basis.

A Practical First Project

If the equipment review supports a pilot, agree its scope and quantity with the plant team and supplier; BBI's minimum order quantity is 25 MT. Compare batch reports with the applicable product specification, and record fuel use and operating observations. Any stack testing should follow the site's monitoring plan and applicable requirements. Results from one installation do not establish suitability for another.

Contact Bharat Bio Industries to discuss product specifications and availability.