Solar Farm Break-Even Analysis: $615K Monthly Revenue Target

Fixed costs $1.16M/mo Year 1 base

Contribution margin 90.5% After variable costs

Break-even revenue $1.28M/mo Monthly target

Break-even timing Month 1 Launch month

Break-even calculator

Test how monthly electricity sales, direct costs, and overhead move the point where the farm stops losing money.

Lean Base Full

Monthly revenue Revenue is the cash coming in from electricity sales, credits, and grid services before direct costs. $ Lower sales Higher sales Variable expenses These are direct costs that rise with output, mainly transmission fees and variable operations and maintenance. $ Lower direct cost Higher direct cost

Money available to cover fixed costs $11,625,000 $12,500,000 revenue - $875,000 variable expenses

Margin ratio

93%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly cost base that contribution margin has to cover before profit starts. $ Lean overhead Higher overhead

Break-even chart Revenue Total costs

Which solar farm expenses are fixed, and which move with electricity sales?

Cost classification

Break-even is reliable only if revenue-linked fees stay variable and lease, insurance, overhead, and payroll stay fixed. Keep construction capex, panel procurement, and grid interconnection infrastructure outside operating break-even.

Expense	Cost	Break-Even Treatment	Common Mistake
Grid Transmission Fees	Variable	Apply 1.5% of revenue in the first year, falling to 0.8% by Year 5.	Modeling it as a flat monthly fee instead of tying it to electricity sales.
Operations and Maintenance Variable Component	Variable	Apply 8.0% of revenue in the first year, falling to 5.0% by Year 5.	Treating all maintenance as fixed and overstating contribution margin.
Land Lease Payments	Fixed	Include $350,000 per month throughout the operating break-even period.	Spreading land lease as a percentage of power sales.
Property and Liability Insurance	Fixed	Include $80,000 per month as recurring overhead.	Dropping insurance from break-even because it is not tied to output.
General and Administrative Overhead	Fixed	Include $25,000 per month for recurring administrative support.	Scaling admin overhead with revenue without a planned staffing or service change.
IT and Software Subscriptions	Fixed	Include $12,000 per month during the relevant planning range.	Linking subscription spend to megawatt-hour sales without a usage-based contract.
Legal and Audit Fees General	Fixed	Include $20,000 per month as recurring professional service overhead.	Confusing recurring legal and audit fees with one-time project development costs.
Planned Payroll	Fixed	Model by approved headcount: first-year staffed roles total $805,000 per year, or about $67,083 per month.	Loading payroll as a percentage of electricity revenue instead of planned full-time equivalents.

How does monthly break-even change from lean to full solar farm output?

Scenario table

All three cases clear monthly operating break-even once the plant is running. The cushion widens as revenue rises and variable costs fall, but cash payback still takes 42 months because construction spend sits ahead of operating profit.

Planning assumptions only, not a guarantee of future output, pricing, or grid fees.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean solar run-rate	$6.67M	$633K	$557K	90.5%	$5.48M	Strong operating cushion, so fixed costs are covered early.
Base solar run-rate	$12.50M	$875K	$577K	93.0%	$11.05M	Break-even is well covered, and the main risk is ramp timing.
Full solar run-rate	$16.50M	$957K	$577K	94.2%	$14.97M	Very wide cushion, so operating loss risk is low in steady state.

What breaks the solar farm break-even plan?

Stress test

Year 1 has about $80.0M of revenue against about $6.7M of fixed cost, so the base case has a wide cushion. The real risk is lower output, weaker PPA or REC pricing, and higher lease or insurance costs.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$7.38M	$72.62M cushion	Base case leaves wide headroom.
Revenue shortfall	Electricity sales PPA runs 10% below plan.	$7.38M	$65.62M cushion	Generation or pricing slippage trims the biggest revenue line.
Fixed cost rise	Land lease and insurance rise by $50K per month.	$8.04M	$71.96M cushion	Fixed costs hit break-even dollar for dollar.
Margin pressure	Operations and maintenance variable cost rises from 8.0% to 9.0%.	$7.46M	$72.54M cushion	A 1-point margin slip raises break-even.
Combined pressure	PPA revenue falls 10%, lease and insurance rise $50K per month, and variable cost rises to 9.0%.	$8.13M	$64.87M cushion	Lower output and higher overhead cut cushion fast.

What should the founder verify before signing the lease and starting major solar spend?

Founder checklist

Do not sign the lease, order equipment, or hire until the revenue stack and cost stack line up with the model. If any core contract or the cash cushion is missing, break-even is still tentative.

1Site control$350K/mo

Confirm land control before the monthly lease burden starts, because that fixed cost hits from Month 1.

2Grid pathMonth 1

Verify permitting and interconnection have a clear path before you rely on Month 1 operating break-even.

3PPA lock$70M Y1

Confirm the electricity sales agreement before underwriting Year 1 revenue, since most of the top line depends on it.

4REC stack$10M Y1

Verify renewable energy credit and ancillary services assumptions before counting the extra Year 1 revenue.

5Cost stack90.5% CM

Confirm insurance binders, Year 1 payroll, and O&M scope before you trust the 90.5% contribution margin, which assumes 8.0% variable O&M and 1.5% transmission fees.

6Cash cushion-$182.4M

Check construction funding and reserve depth against the Month 12 cash trough, because capex peaks long before EBITDA turns positive.