A Sustainable Aviation Fuel (SAF) Plant Financial Model in India helps investors, industrial companies and project developers understand whether a proposed SAF manufacturing facility can generate commercially viable returns before major capital is committed. SAF projects can require significant investment, and profitability depends heavily on feedstock cost, conversion yield, hydrogen requirement, plant utilisation, selling price and long-term offtake.

For investors, the financial model should not begin with an assumed SAF selling price alone. The first step is to understand which feedstock will be used, which technology pathway is suitable, how much SAF can be produced from each tonne of feedstock and who will buy the final fuel.

Green Permits Consulting supports investors with SAF feasibility studies, DPR preparation, feedstock assessment, CAPEX and OPEX modelling, project finance analysis and complete project implementation planning.

Understanding the SAF Plant Business Model

A Sustainable Aviation Fuel plant converts suitable renewable or waste-based feedstocks into aviation fuel that can be blended and supplied for aviation use, subject to applicable technical and sustainability requirements.

Different SAF projects can use different feedstocks and conversion pathways. Depending on technology, the plant may use used cooking oil, suitable waste oils and fats, biomass-derived feedstocks, alcohol-based routes or other approved inputs.

A simplified project flow is:

Feedstock → Pre-Treatment → Conversion → Upgrading → SAF + Co-Products

The project may also produce renewable diesel, naphtha or other useful fractions depending on the process route. These co-products can improve plant economics and should be included separately in the financial model.

Feedstock Cost is the Biggest Financial Driver

For many SAF projects, feedstock represents one of the largest operating costs.

A plant using waste oils may face competition from biodiesel and renewable diesel producers. A biomass-based plant may require a large collection radius, storage yards and additional pre-processing because biomass is bulky and seasonal.

The financial model should therefore calculate the delivered feedstock cost rather than using only the purchase price.

A better calculation is:

Feedstock Purchase + Collection + Transport + Storage + Pre-Treatment = Delivered Feedstock Cost

Even a ₹2-₹5 per kg increase in delivered feedstock cost can materially affect annual profitability when the plant operates at large scale.

For this reason, feedstock mapping and long-term procurement arrangements should be completed before finalising plant capacity.

Conversion Yield Determines Revenue

The financial model must clearly establish how much SAF can be produced from the incoming raw material.

One tonne of feedstock does not automatically become one tonne of SAF. Depending on the technology, part of the input can become co-products, process gases, water or other fractions.

The model should therefore prepare a proper material balance:

Feedstock Input → SAF Output + Co-Products + Process Losses

For example, if a plant is designed around 100,000 tonnes of annual feedstock, the revenue model should use the actual expected SAF yield rather than treating the full 100,000 tonnes as saleable aviation fuel.

A small change in yield can have a major impact on project IRR because the same plant continues to carry most of its fixed costs.

SAF Plant CAPEX in India

There is no single standard investment applicable to every SAF project in India. CAPEX depends on feedstock, technology, plant capacity, hydrogen requirement, utilities and whether the facility is greenfield or integrated with an existing refinery.

A greenfield plant may require investment in feedstock receiving, pre-treatment, reactors, upgrading systems, distillation, hydrogen systems, storage tanks, laboratories, utilities, wastewater treatment and fire protection.

The total project investment should therefore consider:

Land + Civil Works + Process Plant + Hydrogen System + Utilities + Storage + Environmental Infrastructure + Engineering + Working Capital

A brownfield project located within an existing refinery or industrial complex may have lower infrastructure cost because some utilities, storage and logistics are already available.

This distinction should be clearly reflected in the DPR.

OPEX and Cost of Producing SAF

Operating cost should be calculated per litre or per tonne of finished SAF.

Major expenses can include feedstock, hydrogen, electricity, steam, water, catalysts, chemicals, manpower, maintenance, waste treatment and logistics.

For some technology routes, hydrogen can become a significant operating cost. If green hydrogen is used, the economics may also depend on renewable electricity cost and electrolyser performance.

A practical operating-cost model is:

Feedstock + Hydrogen + Energy + Chemicals + Labour + Maintenance + Other OPEX = SAF Production Cost

This production cost should then be compared with the realistic selling price expected from the buyer.

The objective is to understand the margin per litre or per tonne, not simply annual revenue.

Plant Capacity and Capacity Utilisation

Bigger is not always better in a SAF project.

A larger plant may benefit from economies of scale, but only if enough feedstock and buyer demand are available. A 500,000-tonne facility operating at 40% utilisation can have weaker economics than a 150,000-tonne plant operating consistently at 85%.

The correct planning sequence should therefore be:

Feedstock Availability → Technology Yield → Buyer Demand → Plant Capacity

The financial model should also include a realistic production ramp-up. It is rarely advisable to assume 100% utilisation from the first year because commissioning, process stabilisation and customer qualification may take time.

A phased utilisation assumption gives lenders and investors a more credible view of cash flow.

SAF Selling Price and Revenue Model

Revenue should be calculated separately for SAF and other saleable products.

A simple structure is:

SAF Production × SAF Selling Price + Co-Product Revenue = Gross Revenue

However, SAF prices can vary depending on feedstock, certification, customer agreement, global fuel prices and environmental attributes.

The financial model should therefore avoid using only the highest market price.

A better approach is to prepare three scenarios: conservative, base and optimistic.

For project finance, a long-term offtake agreement with an airline, fuel supplier or refinery can significantly improve bankability because it gives greater visibility over future sales.

Working Capital Requirement

Working capital can become substantial, particularly when the plant needs to purchase large quantities of feedstock before receiving payment for finished fuel.

The cash cycle may look like:

Feedstock Purchase → Inventory → Processing → SAF Storage → Dispatch → Customer Payment

Seasonal feedstock can create an even larger requirement because the company may need to purchase and store material during a limited period while consuming it throughout the year.

The DPR should therefore calculate feedstock inventory, product inventory, receivable days and supplier credit separately.

Working capital should not simply be estimated as a fixed percentage of CAPEX.

Project Finance Structure

A SAF plant can be financed through a combination of promoter equity, term debt, strategic investment and other suitable financing structures.

Banks and financial institutions generally want clarity on feedstock security, technology provider, EPC arrangement, customer offtake and projected cash flow.

The project should demonstrate that it can service debt under realistic operating conditions.

Important financial indicators include DSCR, break-even utilisation, payback period, project IRR and equity IRR.

The financial model should also clearly distinguish between fixed CAPEX, working capital and financing costs.

Carbon and Environmental Revenue

SAF projects may potentially benefit from carbon or environmental attributes depending on the fuel pathway, lifecycle emissions, certification system and commercial agreement.

However, such income should be modelled carefully.

The base project should ideally remain commercially understandable without relying completely on uncertain carbon-credit revenue.

A stronger financial approach is:

Core SAF Revenue + Confirmed Co-Product Revenue

and separately:

Potential Carbon / Environmental Revenue

This makes the investment model more conservative and easier to evaluate.

Sensitivity Analysis for SAF Projects

SAF projects are sensitive to changes in input cost and product price, so sensitivity analysis is essential.

The DPR should test scenarios such as higher feedstock cost, lower SAF selling price, reduced plant utilisation, higher hydrogen cost and lower conversion yield.

For example:

Base Case → Feedstock +10% → SAF Price -10% → Yield -5% → Utilisation -15%

This helps identify which variables create the greatest financial risk.

In many SAF projects, feedstock cost and product selling price have the strongest impact on profitability.

DPR for SAF Plant in India

A professional SAF Plant DPR and Financial Model should connect feedstock, technology, market demand and project finance.

The DPR should cover feedstock availability, technology pathway, plant capacity, material balance, machinery, utilities, CAPEX, OPEX, working capital, selling price, offtake and financial returns.

The practical development sequence should be:

Feedstock Study → Technology Assessment → Buyer & Offtake Study → Capacity Planning → DPR → Financial Model → Finance → EPC → Commissioning

This approach reduces the risk of investing in a technically strong project that lacks sufficient feedstock or a reliable buyer.

How Green Permits Helps

Green Permits Consulting supports investors and industrial developers with SAF Plant feasibility studies, DPR preparation, feedstock mapping, technology assessment, CAPEX and OPEX modelling, financial analysis and project implementation support.

Read more about plant feasibility and DPR consulting services here:

👉 https://www.greenpermits.in/09/saf-plant-financial-model-capex-opex-irr-payback/

📞 Get Expert Assistance for SAF Projects

If you are planning a Sustainable Aviation Fuel Plant in India, Green Permits Consulting can assist with financial modelling, feasibility study, DPR preparation, feedstock assessment, project finance and implementation planning.

🌐 Website: www.greenpermits.in

📞 Phone: +91 78350 06182

📧 Email: wecare@greenpermits.in

Book a consultation with Green Permits Consulting.