Biofuel Production Break-Even Point: About $147K Monthly Revenue

Fixed costs $101.2K/mo Launch overhead base

Contribution margin 82.4% After variable costs

Break-even revenue $123K/mo Monthly target

Break-even timing Month 1 First breakeven month

Break-even calculator

Use this to test whether monthly biofuel sales can cover feedstock, processing, and the fixed cost base.

Lean Base Full

Monthly revenue Revenue is the cash that gives you room to cover fixed costs. $ Low sales High sales Variable expenses These move with output: feedstock, processing, logistics, and related compliance. $ Low costs High costs

Money available to cover fixed costs $6,836,800 $7,483,333 revenue - $646,533 variable expenses

Margin ratio

91%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly base cost the margin has to cover. $ Lean base Heavy base

Break-even chart Revenue Total costs

Which biofuel expenses are fixed, and which move with sales?

Cost classification

Your break-even gets shaky if unit-linked feedstock, logistics, and utilities sit in overhead. Keep fixed monthly burn separate from volume-driven costs so Month 1 break-even ties to real production levels.

Expense	Cost	Break-Even Treatment	Common Mistake
Renewable Diesel Feedstock Acquisition ($0.20/unit)	Variable	Subtract per unit before break-even volume; it rises with production.	Treating feedstock as plant overhead.
Sustainable Aviation Fuel Advanced Feedstock ($1.50/unit)	Variable	Model per unit sold, not as a flat monthly charge.	Hiding premium feedstock inside fixed overhead.
Specialty Chemicals Catalyst Costs ($0.10/unit)	Variable	Include with other per-unit processing inputs in margin math.	Grouping catalysts with lab overhead.
Plant Technicians Payroll	Semi-fixed	Step payroll up as staffing moves from 4.0 to 12.0 FTE.	Averaging technician pay as one unit rate.
Facility Lease ($25,000/month)	Fixed	Carry as monthly overhead across the planning range.	Spreading rent across units too early.
Utilities Fixed Portion and Utilities Consumption	Semi-variable	Separate the $5,000 monthly base from per-unit usage.	Burying usage-driven utilities in fixed overhead.
Environmental Compliance Officer	Semi-fixed	Add salary when the role starts in Month 13.	Counting compliance payroll from Month 1.
Feedstock Transportation (8.0% of revenue in first year)	Variable	Apply as a revenue-linked logistics charge.	Burying logistics inside fixed overhead.

How does break-even change from lean ramp-up to commercial base and expanded scale?

Scenario table

Lean ramp-up is the tightest case because fixed overhead is spread over less output. As the plant moves to commercial and expanded scale, the margin cushion widens and break-even revenue rises only modestly.

Planning cases only; actual break-even will move with feedstock mix, yields, uptime, and contract pricing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean ramp-up	$3.36M	$594.2k	$121.2k	82.3%	$2.64M	Near $147k/month break-even; this is the tightest case.
Commercial base case	$7.48M	$1.21M	$149.1k	83.9%	$6.13M	Near $178k/month break-even; scale gives a wider cushion.
Expanded scale	$12.44M	$1.77M	$169.1k	85.8%	$10.50M	Near $197k/month break-even; this case has the strongest cushion.

What breaks the break-even plan if sales slip or costs rise?

Stress test

The first-year plan sits far above break-even, so the main risk is execution, not the threshold itself. Watch lower offtake, weaker conversion yield, higher feedstock transport, and any lag in the production ramp.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change to revenue or costs.	$147,000	$335.9M cushion	Plan clears break-even with room to spare.
Revenue down	Monthly revenue falls 10% to about $302.4M.	$147,000	$302.3M cushion	Lower offtake trims cushion, but break-even still holds.
Fixed costs up	Fixed overhead rises 10% to about $1.3M a month.	$162,000	$335.8M cushion	Higher overhead lifts the hurdle, so fixed spend needs tight control.
Margin squeeze	Variable expenses rise 10% to about $654k a month.	$151,000	$335.8M cushion	Weaker conversion yield and feedstock transport costs pressure margin.
Combined pressure	Revenue falls 10% and fixed and variable costs both rise 10%.	$166,000	$302.2M cushion	This is the ramp-risk case, especially if yield slips.

What should you verify before signing the lease and ordering the plant?

Founder checklist

If the site, supply, and buyers are not lined up, the Month 9 cash trough gets ugly fast. Check the fixed load, capex, margin, staffing, and demand against the Year 1 plan before you commit.

1Fixed load$121.2K/mo

Verify the lease, insurance, utilities, software, admin, security, and Year 1 core payroll fit the site before you sign.

2Capex gate$33.0M

Order construction and long-lead equipment only if the build, storage, lab, utility, and loading spend still matches the plan.

3Demand lock5 products

Lock feedstock sources and buyers for Renewable Diesel, Biochar, Specialty Chemicals, Biogas, and Sustainable Aviation Fuel before first output.

4Margin floor58.7% CM

Make sure the weakest unit case, Sustainable Aviation Fuel, still clears unit costs plus feedstock transportation and environmental credit costs.

5Staff ramp4 FTE

Hire around four Plant Technicians in Year 1, not the 12-FTE mature plan, until throughput is stable.

6Cash cushion-$13.5M

Hold enough runway for the Month 9 cash trough of about -$13.5M, because Month 1 break-even does not protect working capital.