What is a alcohol from potato project report?
An alcohol from potato project report is a detailed project report (DPR) for a distillery that turns potato starch into ethanol by cooking, enzyme conversion, yeast fermentation and distillation. It sets out feedstock supply, process, machinery, approvals, project cost, means of finance, five-year projections, DSCR and break-even for lenders and investors.
Promoters, sugar and grain distillers adding a feedstock, and banks appraising a potato ethanol plant use it to test whether the unit can buy enough potatoes and repay its loan.
Also known as: potato ethanol project report, potato alcohol plant DPR, ethanol from potato business plan, potato based distillery project report.
Alcohol from potato plant cost in India and sample economics
Our sample report models a 5,700 litres per day plant that runs 300 days a year, not 330, because potato supply is seasonal. It starts at 60% capacity, reaches 80% in Year 5, and sells ethanol at ₹69.20 per litre before GST.
| Land and site development | 35.50 |
|---|---|
| Building and civil works | 142.35 |
| Plant and machinery | 326.87 |
| Other fixed assets | 41.74 |
| Contingencies | 23.46 |
| Preliminary and pre-operative | 14.25 |
| Working capital margin | 27.17 |
| Total | 611.34 |
| Promoter's contribution (25%) | 152.84 |
|---|---|
| Term loan from bank (75%) | 458.50 |
| Cash credit limit (separate) | 81.51 |
| Total project cost | 611.34 |
Plant and machinery is more than half the project cost, which is typical of a distillery. DSCR (debt service coverage ratio, the cash available to pay each year's loan instalments and interest) is lowest at 1.31 in Year 2, when full principal repayment starts.
Term loan at 10.5% with a 6-month moratorium and 54 monthly instalments. All figures are illustrative.
Alcohol from potato manufacturing process
Potato starch cannot be fermented directly. It is first cooked and broken down by enzymes into glucose, which yeast then turns into alcohol.
- Washing and grinding
Potatoes arrive with soil and stones, so they pass through a washer and destoner before a hammer mill grinds them into a mash with water.
- Cooking and liquefaction
A jet cooker gelatinises the starch, and alpha amylase thins the mash by breaking starch into dextrins.
- Saccharification
Glucoamylase converts dextrins into glucose at a set temperature and pH, often continuing inside the fermenter.
- Fermentation
Yeast ferments the glucose over two to three days; plate coolers hold the temperature, and antifoam keeps the potato mash from frothing over.
- Distillation
Multi-pressure columns strip alcohol from the fermented wash and concentrate it to rectified spirit of about 95% strength.
- Dehydration
A molecular sieve unit removes the remaining water to give anhydrous ethanol, the grade oil companies buy for blending.
- Spent wash treatment
A decanter separates solids and evaporators concentrate the liquid, so the plant meets zero liquid discharge (ZLD) conditions.
Potato or grain: what changes in the plant?
The cooking, fermentation and distillation steps are close to those of a grain distillery. The difference is the feedstock. Potatoes are mostly water. The plant therefore receives, washes and grinds far more tonnes for each litre of alcohol than a grain plant, and needs a larger reception and washing section.
Potatoes also spoil. Sprouted or rotting stock loses starch every week it waits. A potato plant buys close to harvest and from cold stores, processes quickly, and cannot hold months of stock like a grain plant.
Many promoters therefore plan a dual-feed plant: potatoes when cull and damaged stock is cheap, and broken rice or maize at other times. The same cooker, fermenters and columns serve both, with a grain mill added at the front end.
The feedstock rule matters: the National Policy on Biofuels 2018 allows ethanol for blending from rotten potatoes unfit for human consumption. A plan built on buying good table potatoes competes with the food market and weakens the case for supplying oil companies.
Raw materials for alcohol from potato
Damaged and cull potatoes from cold stores, grading yards and processors are the main input. Raw materials come to 50.3% of sales in our sample, with potatoes making up 84% of that cost.
| Raw material | Share of cost | Year 3 (₹ lakh) |
|---|---|---|
| Potatoes (damaged and cull grade) | 84% | 349.95 |
| Liquefying and saccharifying enzymes | 8% | 33.33 |
| Yeast and nutrients | 4% | 16.67 |
| Process chemicals and antifoam | 4% | 16.66 |
| Total | 100% | 416.61 |
Starch content varies by variety and storage time, so a real report fixes alcohol yield from laboratory tests on the potatoes you will actually buy.
Machinery for a potato alcohol plant
The distillation columns are the largest single item in our sample, followed by the fermenters and the spent wash evaporator for zero liquid discharge.
| Machine | What it does | Sample cost (₹ lakh) |
|---|---|---|
| Washing and destoning system | Removes soil and stones | 16.34 |
| Hammer mill and slurry tank | Grinds potatoes into mash | 13.08 |
| Jet cooker and liquefaction tanks | Cooks and thins the starch | 32.69 |
| Fermenters with plate coolers | Hold the yeast fermentation | 49.03 |
| Multi-pressure distillation columns | Recover and concentrate alcohol | 71.91 |
| Molecular sieve dehydration unit | Makes anhydrous ethanol | 39.23 |
| Spent wash evaporator and decanter | Treats effluent for ZLD | 45.76 |
| Biomass-fired steam boiler | Steam for cooking and distillation | 39.22 |
| Ethanol storage tanks and pumps | Store and load product | 19.61 |
| Total plant and machinery | 326.87 | |
Costs are the sample report's estimates for a 5,700 litres per day plant. Get current quotations before you finalise.
Licences and approvals for an alcohol from potato plant
A distillery needs more approvals than most plants. Start the excise and environmental approvals early, because they decide your timeline more than construction does.
| Excise licence | A state excise licence to establish and work a distillery; state distillery rules control spirit made from any fermented base |
|---|---|
| Environmental clearance | Prior environmental clearance for distilleries, molasses and non-molasses based, under item 5(g) of the EIA Notification 2006 |
| Pollution board consent | Consent to establish and consent to operate from the State Pollution Control Board, with spent wash treatment conditions |
| Storage licence | Ethyl alcohol is on PESO's list of products that need a licence under the Petroleum Rules 2002, so storage tanks need approval |
| Product standard | IS 15464 for anhydrous ethanol supplied for blending with petrol |
| GST | 5% on ethanol supplied for the blending programme, cut from 18% in December 2021; confirm the rate for other sales |
Checked against official sources in October 2026. Rules vary by state; confirm them with your state excise and pollution departments.
Market for potato ethanol in India
Most demand comes from oil marketing companies that blend ethanol with petrol. The Ministry of Petroleum and Natural Gas estimated in October 2024 that 20% blending needs about 1,016 crore litres, out of total ethanol demand of about 1,350 crore litres. The government brought the 20% blending target forward to 2025-26. By September 2024, India's ethanol production capacity had reached 1,623 crore litres, according to the same ministry.
Industrial alcohol has a second set of buyers who value steady quality and prompt supply:
- Oil marketing companies buying ethanol for blending
- Pharmaceutical and bulk drug makers using it as a solvent
- Ethyl acetate and other chemical producers
- Sanitiser and disinfectant makers
- Paint, ink and printing solvent users
Where a potato plant wins: near large potato belts and cold store clusters, cull and damaged potatoes often have few other buyers. A plant close to source can agree supply with cold stores and traders before the season and keep freight low.
Mistakes that weaken an alcohol from potato project report
- Assuming potatoes all year
Cull and damaged stock comes in waves around harvest and cold store clearing. A plan that shows full output for 330 days without a second feedstock overstates sales.
- Taking yield from textbook starch values
Stored potatoes lose starch as they sprout or rot. Yield must come from tests on the grade you will buy, or alcohol output and DSCR come out too high.
- Leaving out spent wash treatment
Evaporators, decanter and their steam are a large share of cost. Without them the plant will not get consent to operate.
- Pricing on table potatoes
Good potatoes sell to the food market at prices that make ethanol unviable, and the biofuel policy points to produce unfit for human consumption.
- Ignoring buyer credit
Trade receivables are the largest current asset in our sample. Without them the cash credit limit is too small in Year 1.
How NPCS helps you plan a potato alcohol plant
- Feedstock and capacity planSize the plant to the cull potato supply around your site, with a grain fallback where needed.
- Process and machineryCompare cooking, distillation, dehydration and ZLD options and collect quotations.
- Bank-ready project reportProjections, DSCR and working capital in the format your lender expects.
- Approvals roadmapExcise, environmental clearance, pollution consent and PESO steps for your state.
NPCS has prepared project reports and feasibility studies for specialty chemical plants since 1994, for entrepreneurs, banks and companies in India and abroad.
What's inside the alcohol from potato sample report
- Introduction
- Uses and applications
- Market potential
- Manufacturing process
- Raw materials
- Plant and machinery
- Land, building and utilities
- Manpower
- Licences and approvals
- Project cost and means of finance
- Working capital
- Projected profitability
- Cash flow statement
- Projected balance sheet
- Depreciation
- Term loan repayment
- Debt service coverage
- Break-even analysis
- Financial ratios
- Key assumptions
- Conclusion
- Monthly loan repayment schedule
19 pages, five-year projections, illustrative figures.
Open sample reportFree sample or a report for your project?
| What you get | Free sample | NPCS report for your project |
|---|---|---|
| Capacity and location | Typical unit | Your capacity, site and state |
| Figures | Illustrative | Built on current prices and quotations |
| Machinery suppliers and quotations | No | Yes |
| Market survey for your region | No | Yes |
| Bank or scheme format (PMEGP, term loan) | No | Yes |
| Use for a loan application | No | Yes |
Real NPCS alcohol from potato project reports
These are alcohol from potato project reports NPCS has prepared, with the plant capacity, total capital investment, rate of return and break-even worked out in each. Costs have moved since some were written, so we bring any of them up to date for your capacity and location.
| Project report | Plant capacity | Total investment | Rate of return | Break-even | Action |
|---|---|---|---|---|---|
| Alcohol from Potato | Alcohol from Potato: 60 KLs/Day | ₹22.8 crore | 28% | 44% | Get this report |
Figures as worked out in each NPCS report. Total investment includes plant and machinery, land and building, and working capital.
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Alcohol from Potato project report: frequently asked questions
How much does an alcohol from potato plant cost in India?
Our sample report models a 5,700 litres per day plant at a total project cost of ₹611 lakh, of which plant and machinery is ₹327 lakh. Larger plants cost more in total but less per litre of capacity. Cost also depends on whether you add a dehydration unit for fuel-grade ethanol and how spent wash is treated, so treat any figure as indicative until quotations are in.
Can ethanol made from potatoes be sold for blending with petrol?
Yes, within the feedstock rules. The National Policy on Biofuels 2018 allows ethanol production from rotten potatoes and other damaged produce unfit for human consumption. Oil marketing companies buy fuel-grade anhydrous ethanol through their tenders, and the ethanol must meet IS 15464. Check the current tender terms and eligible feedstocks before you size the plant.
What is the manufacturing process of alcohol from potato?
Potatoes are washed, destoned and ground into a mash. The mash is cooked and treated with alpha amylase and glucoamylase to turn starch into glucose. Yeast ferments the glucose over two to three days, distillation columns recover rectified spirit, and a molecular sieve removes the last water for fuel-grade ethanol. Spent wash is treated so no effluent leaves the plant.
Which licences are needed for a potato alcohol plant?
A distillery needs a state excise licence and prior environmental clearance under the EIA Notification 2006. It also needs pollution board consent to establish and operate, and a PESO licence for storing ethyl alcohol. Fuel-grade ethanol for oil companies must meet IS 15464. Requirements differ by state, so confirm the list with your state excise and pollution departments.
Is an alcohol from potato plant profitable?
In our illustrative sample, the plant earns a 15% return on investment in Year 3, breaks even at about 42% of capacity and pays back in about 4.3 years. Profit depends mostly on what you pay for cull potatoes, how many days you can run and the ethanol price you secure. A real report tests each of these.
What raw materials are needed besides potatoes?
Enzymes are the next largest input: alpha amylase for liquefaction and glucoamylase for saccharification. You also need distiller's yeast and nutrients, acid or alkali for pH control and antifoam, because potato mash foams heavily. In our sample report potatoes are 84% of raw material cost and enzymes 8%.
Is the sample report free and can I use it for a loan?
The sample is free to view and download. It is an illustrative report that shows the format and depth of an NPCS report. Its figures are representative, not from a real project, so it should not be submitted to a bank. For a loan, NPCS prepares a report for your own capacity, feedstock plan, location and lender.
Sources and references
- National Policy on Biofuels 2018: Cabinet approvalPrime Minister's Office, Government of India, checked Oct 2026
- GST on ethanol for blending reduced and E20 target advancedPress Information Bureau, Ministry of Petroleum and Natural Gas, checked Oct 2026
- India's Ethanol Push: A Path to Energy SecurityMinistry of Petroleum and Natural Gas (PIB), checked Oct 2026
- Office memorandum on distilleries under item 5(g) of the EIA Notification 2006MoEFCC, circulated by SEIAA Puducherry, checked Oct 2026
- List of petroleum products requiring licencePetroleum and Explosives Safety Organisation, checked Oct 2026
- Standard of the month, November 2022 (E20 fuel and IS 15464)Bureau of Indian Standards, checked Oct 2026
- Tamil Nadu Distillery Rules, 1981Government of Tamil Nadu, checked Oct 2026
The NPCS project team, led by Ajay Kumar Gupta
This page and its sample report are prepared and reviewed by the NPCS project team, which has written techno-economic feasibility studies and detailed project reports since 1994.
Ajay Kumar Gupta founded Niir Project Consultancy Services (NPCS) and leads the organisation. With 40 years of experience in MSME project consulting, he has built the team that has delivered more than 28,000 project reports for clients worldwide, helping entrepreneurs plan and finance profitable manufacturing businesses.
- Published
- Last updated
- Next review
- Oct 2027
- Reviewed by
- NPCS project team
This page is reviewed every 12 months, or sooner when scheme limits, GST rates, BIS rules or pollution categories change. The sample report is illustrative: its figures are generated from industry-typical ratios for a unit of this size, checked so every statement balances, and are not taken from any client project.