Hydroelectric Break-Even Analysis: $406K Monthly Revenue Target

Fixed costs $385.5K Monthly overhead base

Contribution margin 95% After variable spend

Break-even revenue $405.8K Revenue needed monthly

Break-even timing Month 1 Model break point

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs against break-even for a hydroelectric plant.

Lean Base Full

Monthly revenue Revenue sets the margin available to cover fixed costs. $ Lower flow Higher flow Variable expenses These are direct costs that move with power sales and market activity. $ Lower costs Higher costs

Money available to cover fixed costs $2,107,000 $2,150,000 revenue - $43,000 variable expenses

Margin ratio

98%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead base break-even must cover. $ Lower overhead Higher overhead

Break-even chart Revenue Total costs

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

Cost classification

Your break-even model works only if $278,000 of monthly fixed overhead and $107,500 of monthly wages stay fixed, while 2.0% grid balancing and 1.0% market fees move with revenue. Mixing them makes Month 1 break-even look cleaner than it is.

Expense	Cost	Break-Even Treatment	Common Mistake
Plant Maintenance Contracts	Fixed	Include the $150,000 monthly contract in the $278,000 monthly fixed overhead base.	Treating routine plant maintenance as per-megawatt-hour spend.
Plant Manager and Operations Staff	Fixed	Include the staffed wage base of $107,500 per month in fixed operating labor.	Flexing core staffing up and down with water flow.
Grid Balancing Charges	Variable	Apply as 2.0% of first-year revenue, then use the forecast percentage by year.	Burying balancing charges in overhead instead of tying them to sales.
Market Transaction Fees	Variable	Apply as 1.0% of first-year revenue, then use the forecast percentage by year.	Modeling transaction fees as a flat monthly line.
Bulk Electricity Turbine Wear and Tear	Variable	Apply 0.3% of bulk electricity revenue plus the listed unit wear items.	Ignoring the maintenance reserve created by output-linked wear.
Environmental Compliance and Audit Fees	Semi-variable	Keep the $20,000 monthly compliance fee fixed, and apply audit-linked items to related revenue.	Putting all compliance spend into one fixed overhead bucket.
Interconnection and Grid Readiness Fees	Semi-variable	Model service-linked grid fees with volume, but keep grid equipment upgrades out of break-even operating expense.	Running equipment capex through the operating break-even model.

How does break-even change from lean flow to base year and full output?

Scenario table

Break-even shifts mainly with output and pricing, because fixed monthly costs sit near $385.5K and variable costs stay light. The real cushion comes from contracted generation, power prices, and grid-service sales.

Planning case only; river flow, dispatch, and market prices can move these figures fast.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean flow threshold	$405.8K	$20.3K	$385.5K	95.0%	$0.0K	Barely covered; any dip breaks even.
Base Year 1 plan	$2.15M	$107.7K	$385.5K	95.0%	$1.66M	Month 1 covers fixed costs with room to spare.
Full Year 5 plan	$2.38M	$101.0K	$385.5K	95.8%	$1.90M	Strong cushion; higher output widens the gap.

What pushes this hydro plan below break-even?

Stress test

The base case clears operating break-even at about $4.06M a month, but cash still drops to -$8.335M in Month 9 because capex lands early. Drought, turbine downtime, and weaker renewable credit or capacity sales are the main break points.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$4.06M	$1.91M gap	Base case still needs strong output.
Revenue shortfall	Bulk Electricity and Renewable Credits volume each falls 10%.	$4.06M	$2.07M gap	Drought or lower credit volume widens the gap.
Fixed cost pressure	Plant maintenance, compliance, insurance, and wages rise 10%.	$4.46M	$2.31M gap	Overhead creep makes the floor harder to clear.
Margin pressure	Grid balancing and market fees rise to 5% of revenue.	$4.15M	$2.00M gap	Higher fees shave margin and push break-even up.
Combined pressure	Revenue falls 10%, fixed costs rise 10%, and fees rise to 5%.	$4.56M	$2.57M gap	Delay, overruns, and weak sales can stack fast.

What should the founder verify before signing the site lease and ordering turbines?

Founder checklist

Don't lock in the lease or long-lead equipment until Year 1 offtake, fixed burn, and Month 9 cash all clear the model. Here’s the quick math: this plant needs $25.8M of Year 1 revenue, carries $385.5K a month in fixed cost and wages, and still hits a -$8.335M cash trough.

1Offtake$25.8M

Verify Year 1 sales across bulk electricity, renewable credits, frequency regulation, spinning reserve, and capacity sales before launch, because demand has to exist before break-even can hold.

2Project Control$1.5M

Verify site control, water rights, and the $1.5M grid interconnection package before any lease or turbine order, because this is where schedule risk starts.

3Fixed Load$385.5K/mo

Verify you can carry $278K of fixed plant costs plus $107.5K of wages each month, because that burn starts on Month 1.

4Bulk Margin95.4%

Verify bulk electricity still clears a 95.4% contribution margin after 3.0% variable fees, 0.8% direct COGS, and $0.40 per unit operating cost, because break-even depends on that spread.

5Staffing Ramp13 FTE / $1.29M

Verify the opening crew stays at 13 planned FTE and $1.29M in annual wages, because staffing ahead of output will push payback out.

6Cash Trough-$8.335M

Verify working capital covers the Month 9 cash low of -$8.335M and the $22.75M capex build, because the project needs room to absorb the heaviest spend period.