← The ladder

Portland, ME

Requested

This is a planning tool, not a prediction. Of the 80 numbers behind a season in Portland, 25 are published figures, 35 are worked out from published figures, and 20 are our own estimates. 43 of them were read straight out of a federal file that covers every city in the country, so there was no citation to trust and no page to misread. You can change any of them. Your result is only as good as the numbers you agree with.

How long until you have your $10,000 back
1.4 months
After 90 days the project is worth
$15,074
Against the $10,000 you put in
+$5,074
This projects the first 90 days forward in a straight line. Early months carry start-up drag, so later ones may run better. It is a direction, not a date.

Where the money goes on day one

The project is behind before the car turns a wheel. That is true in every town on this list, and it is the hole the months above are measured against.

You put in$10,000
Hard costs, paid once
Down payment on a $28,900 car -$2,900
Installing home charging -$2,250
Permits and onboardingplaceholder -$650
Money left to operate on$4,200
Plus the car equity. You paid $28,900, but it would only fetch $27,166 the moment it is yours, and you owe $26,000 of that +$1,166
What the project is worth on day one$5,366

The project is $4,634 down before the first fare: $2,900 genuinely spent, and $1,734 that vanished the moment the car stopped being new.

Two honest caveats. The permit figure is marked placeholder because the model invents it — the obligation is real, the amount is not researched. And nothing here counts sales tax, excise, title or registration on the purchase, which vary by state and this model does not yet carry, so every figure is a best case.

What comes off every fare before you see it

The rider pays100%
The network takesour estimate −30%
Reaches the business70%

That 30% comes off the top — before energy, cleaning, insurance, the depot or the loan payment. Every figure on this page is already after it.

Tesla has published no owner-operator revenue share for Robotaxi, anywhere, so this is an expectation rather than a reported figure. 30% is roughly what the established ride-hail platforms take and what people following the rollout broadly expect. It is the largest single lever in the whole model: at 25% instead, the same season leaves about 7% more in your hand — more than any driving decision you can make. Fares also settle 7 days after they are earned.

People
69,911
Cumberland County
Rides a day
4,414
all operators, town-wide
Airport
6.2 mi
worked out
Fast charging
$0.61
per kWh, public

Why this town is in the game

Asked for by Dave, to put Maine on the ladder. It has the dearest power on the list outside California -- 18.87 cents off-peak, against 6.5 cents in Las Vegas -- so charging cost bites harder here than anywhere else in this batch. Demand is genuinely strong for its size at 63 rides a day per thousand residents. It is also the thinnest research of the eight, holding 8 of 13 citations, so it carries more estimates than its neighbors on the ladder.

Other lenses on Portland, ME

The same research pack feeds more than one simulator. ⚡ A two-stall DC fast-charging site does not pay here under the default assumptions: about 6.1 stops a day against a break-even of 11.9, 14 public fast-charging sites already within 10 miles, payback never.

See the arithmetic and change the assumptions →

Counted again from the US DOE station list by a second route — American Adventurer’s copy of the same 2026-09-16 AFDC snapshot, filtered the same way (open, public, unrestricted, at least one DC fast port):

🧺 A coin laundromat does not pay here under the default assumptions: about 2,050 laundromat households inside 1.5 miles (no car, renters, owners), 560 loads a week (the store is full) against a break-even of 638, attended 84 hours a week at the local $17.74 wage, payback 59.1 years. Run unattended, nothing else changed, it pays back: payback 3.3 years.

See the arithmetic and change the assumptions →

OpenStreetMap maps no laundromat at all within 1.5 miles of the town centre as of 2026-07-09. Read that as a gap in the map, not an empty market — fifteen of the twenty-nine towns here map zero at this radius, and some of them are cities. It is the clearest possible warning not to treat this layer as a census. The model above is still splitting demand with its own editable estimate of 3 stores, which is what the payback figure rests on; move that one for the town you know. Laundromat locations: © OpenStreetMap contributors, via American Adventurer.

Camping near Portland, ME

No public-land camps within 30 miles of the town center in the American Adventurer record. That is the record, not the country: a state park or a private campground would not be in it. See the empty ring on the map →

Data: American Adventurer (davelalande.com), built 2026-09-18T07:30:56Z; read 2026-09-18. Straight-line miles from the Census town center, not driving distance; the American Adventurer record, not every campground.

What this row rests on

80 numbers describe this town. Every one of them says where it came from.

25 published by somebody else 35 worked out from those 20 our own estimates
Citations we went back and checked
8 held / 5 failed
Anything that failed was demoted to an estimate and says so.
What we could not find out
1
  • rides_per_day: the five named sources were checked and none publishes a trip count for this city, so the estimate stands on its own arithmetic

Some of the numbers, and where they came from

A sample. The whole pack is in the data API.

Rides a day, whole townour estimate4,414 rides/day
Total app-hailed trips a day across every operator in the city -- the pool your fleet competes for a share of, not the number you will get. no published figure we could verify
Average paid trip lengthour estimate3.6 miles
Nobody publishes a Portland, ME TNC mean distance; this is reasoned from the city’s own 21.54 sq mi land area, PWM sitting two miles from downtown, and Uber’s own 12-minute typical-ride illustration — not from a Massachusetts or national TNC mean used as if it no published figure we could verify
Passengers boarding a yearpublished1,221,913 enplanements/year
FAA calendar year 2024 ENPLANEMENTS -- passengers BOARDING, which is about half of the arrivals-plus-departures figure an airport press release quotes. This is the federal count, read out of the FAA's own file. FAA, CY2024 Passenger Boarding (Enplanement) Data for U.S. Airports
Overnight electricityworked out0.1887 $/kWh
All-in Rate A-TOU off-peak for midnight–06:00: CMP delivery $0.061470/kWh (transmission and Efficiency Maine Trust already in the tariff) plus the 2026 Standard Offer supply of $0.127210/kWh, which is flat all hours.
Evening peak electricityworked out0.556 $/kWh
All-in Rate A-TOU on-peak: CMP delivery $0.428836/kWh (transmission and Efficiency Maine Trust included) plus flat Standard Offer $0.127210/kWh; the filed on-peak window is 5:00–9:00 p.m. weekdays, not 16:00–midnight.
Insurance on each car after the firstworked out195 $/month
What each additional vehicle adds to the premium. Lower than the first car because a fleet policy spreads the administrative part of a premium across the vehicles while the risk part scales with them -- which is part of why growing is the way out of the trap.
A small commercial bay, per monthworked out1,423 $/month
This is a derivation, not a local quote: a national published figure scaled by a published local index. Nobody publishes what a 1,500 square foot bay lets for in a town this size, because small commercial bays let privately, one handshake at a time, and no ind
A full interior cleanworked out76 $
This is a derivation, not a local quote: a national published figure scaled by a published local index. Nobody publishes a full interior detail in a town this size, because it is a manual service: keeping a price list current is work, and the price is whatever
Demand generatorsour estimate
Maine Med (Level I, West End; ~9,610 city employees); Mercy Hospital; Unum (~1,890); TD Bank (~1,020); WEX (~740); USM; UNE health-sciences/medical campus (200/class); Roux Institute (~800 grad studen
The named generators that actually move cars: the trauma hospital, the insurers/fintech HQs, the colleges, the cruise pier, and the ballpark — compiled from the city's 2025 employer report (via JobsInMaine), UNE, Northeastern, and the port. no published figure we could verify
Published paid-ride countour estimate0 trips/year
No public all-rides or even taxi-only trip census for Portland, ME turned up. Maine law keeps TNC trip files private and bars the city from collecting them, so a silent zero would be worse than documenting the miss. This is an absence, not a measurement of zer no published figure we could verify

Researched 2026-09-14 on pipeline 2.1.0. Measured on sim 1.5.0, 12 seeds, median reported. A result is only comparable to another from the same sim version. The camping card is the American Adventurer record within 30 straight-line miles of the Census town center, read 2026-09-18: not driving distance, and not every campground.