Power Plant Maintenance Break-Even Analysis: $166K/Month

Fixed costs $21.2K/mo Monthly fixed base

Contribution margin 71% After variable costs

Break-even revenue $29.9K/mo Monthly target

Break-even timing Month 29 Model break-even

Break-even calculator

Test how monthly revenue, variable expenses, and fixed monthly costs compare with break-even for a power plant maintenance service.

Lean Base Full

Monthly revenue Revenue gives you the cash pool that covers direct costs and overhead. $ Low sales High sales Variable expenses Use direct labor, travel, and other costs that rise with work. $ Low direct High direct

Money available to cover fixed costs $115,000 $260,000 revenue - $145,000 variable expenses

Margin ratio

44%

Covers fixed costs

Yes

Fixed monthly costs Use the monthly cost base that stays on even when volume changes. $ Low fixed High fixed

Break-even chart Revenue Total costs

Which power plant maintenance expenses are fixed, and which move with sales?

Cost classification

Classifying costs correctly keeps break-even useful: variable items reduce contribution margin, while fixed and semi-fixed items set the monthly hurdle. If salaried crews are modeled as variable, Month 29 break-even can look safer than it is.

Expense	Cost	Break-Even Treatment	Common Mistake
Office rent	Fixed	Add $8,000 per month to the fixed overhead that must be covered before profit.	Spreading rent across jobs and hiding the true monthly hurdle.
Business insurance	Fixed	Add $1,500 per month to fixed overhead during the operating period.	Leaving it outside break-even because it is not tied to billable hours.
General IT & software licenses	Fixed	Add $2,000 per month to the base operating load.	Treating core software as optional when crews need it before jobs bill.
Field engineer direct labor	Variable	Deduct 12% of revenue in the first year when calculating contribution margin.	Counting direct job labor as fixed payroll instead of revenue-linked delivery work.
Specialized tool consumables	Variable	Deduct 3% of revenue in the first year from contribution margin.	Budgeting tools once, then missing wear, parts, and job-level use.
Field engineer travel & per diem	Variable	Deduct 4% of revenue in the first year because travel rises with job volume.	Averaging travel too low when sites are farther apart.
Utilities & internet	Semi-variable	Start with the $1,200 monthly base, then watch usage as the team and platform load grow.	Modeling it as fully fixed even when operating scale pushes usage higher.
Salaried field staff and operations leadership	Semi-fixed	Add salary capacity in steps as full-time equivalent staffing grows across the plan.	Treating all payroll as variable when salaried FTEs keep running before jobs bill.

How does break-even change from a lean crew to a full maintenance footprint?

Scenario table

Break-even moves up fast as the footprint gets heavier: more fixed cost means more monthly revenue needed before the model covers itself. The first two structures stay below break-even; the third finally clears it.

Planning assumption only; contract timing and crew use can shift break-even.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean first-year maintenance footprint	$1.56M	$452k	$1.18M	71.0%	-$71.8k	Still below break-even; one missed contract hurts.
Base second-year maintenance footprint	$2.04M	$538k	$1.53M	73.6%	-$25.8k	Close, but still short of full cover.
Full third-year service footprint	$2.82M	$668k	$2.10M	76.3%	$45.7k	Above break-even; now the cushion starts.

What breaks the break-even plan for power plant maintenance?

Stress test

This plan breaks first when billable hours slip, travel gets heavier, or overhead lands before contracts do. A 10% revenue miss or a 5-point margin hit can wipe out the cushion and push break-even up fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$1,662k	$0 cushion	Base case has little room for delay.
Revenue shortfall	Billable hours run 10% below plan.	$1,662k	$166k gap	Low utilization removes the cushion fast.
Fixed-cost increase	Fixed overhead rises 10% before contracts mature.	$1,827k	$165k gap	Higher overhead pushes break-even up quickly.
Margin pressure	Variable expenses rise 5 points to 34%.	$1,786k	$124k gap	Travel-heavy work and overtime erode margin.
Combined pressure	Fixed costs rise 10% and margin falls 5 points.	$1,965k	$303k gap	Delayed access and subcontractors can break the plan.

Can this maintenance service reach break-even before you lock in the fleet and hiring plan?

Founder checklist

Confirm signed work and the sales pipeline can support about $166K in monthly revenue before you commit to the fleet and headcount. At the Year 1 mix, that means about 43 active customer equivalents, so the demand has to land before the fixed load does.

1Demand Proof$166K/mo

Verify contract volume can reach monthly break-even revenue before you add more fixed cost.

2Fixed Load$105.4K/mo

Lock the full monthly overhead, including $1,500 insurance and $4,000 fleet lease, before hiring ahead of signed work.

3Contribution71% CM

Check that pricing still leaves about 71% after field labor, consumables, cloud usage, commissions, travel, and campaign spend.

4Engineer Load15 hrs

Prove each active customer can really use 15 billable hours a month, or the first-year mix will cap revenue early.

5Cash Cushion-$1.476M

Fund the opening run because minimum cash drops to -$1.476M in Month 28 and payback takes 51 months.

6Launch Setup$1.09M

Complete the launch capex across vehicles, diagnostics, platform build, office setup, tools, safety gear, and the mobile workshop, then lock training and response rules before scaling.