How do robotaxis charge?

Short answer: the Cybercabs reported so far charge DC only, through a NACS port, with no onboard AC charger (per Not a Tesla App, September 5, 2026, citing hands-on reporting by Out of Spec Reviews), so a home Level 2 wall connector cannot charge one. They charge at fleet depots or other DC charging sites. There is no public Cybercab depot for private owners yet: the robotaxi depots that exist are run by fleet operators for their own cars, documented in the Phoenix area, San Francisco, the Los Angeles area, Austin, Dallas, Houston, Atlanta, Miami and Las Vegas (per our sourced robotaxi depot database, updated October 20, 2026). Electricity costs roughly 1.5 to 5.5 cents a mile depending on the state, about 2 cents in Florida. That is an estimate: 165 to 182 Wh per mile times EIA’s August 2026 average commercial electricity price, before DC charger demand charges and DC charging losses (the state table and its assumptions).

DockDuty is pre-launch. No DockDuty depot is open: Orlando is our lead market, with its depot targeted for Q4 2026 or Q1 2027, and no lease is signed. Once a depot is open, charging electricity is included in the monthly retainer with no markup on energy (pricing). DockDuty is an independent company. Not affiliated with, endorsed by, sponsored by, or partnered with Tesla, Inc.; “Tesla” and “Cybercab” are trademarks of Tesla, Inc., used here for descriptive reference only.

A robotaxi's defining feature creates its most mundane problem: there's nobody in the car to plug it in. Every autonomous fleet on the road has had to answer it, and as of September 2026 the answer in service is the same everywhere: a person at a depot. Tesla has described a different long-term design for the Cybercab, and the cars it is actually running do something else again. This post keeps the three apart. The depot side of that question (how a site is powered for a fleet rather than a car) is covered in Cybercab depot charging.

Who charges robotaxis?

Depot staff charge robotaxis. Today every operating fleet returns cars to a depot where a person plugs each vehicle into DC charging equipment between rides; there is no self-plugging system in public service. Tesla has said the production Cybercab is designed for inductive pads, but the cars observed in September 2026 charge DC only through a NACS port with no onboard AC charger.

Every driverless fleet operating right now: Waymo's, Zoox's, Tesla's current Model Y robotaxis, charges the unglamorous way: the vehicle routes itself back to a depot or staging lot, and a fleet technician physically connects it to a charger. Charging is one of the core reasons depots exist at all; it sits alongside cleaning and dispatch readiness in the operational loop we walk through in what is a robotaxi depot? The car may have no driver, but its charging session still has a human in it. Tesla describes the same loop for its own Cybercabs without saying who connects the cable: its Cybercab first responder guide (version 1.2, checked October 23, 2026) has the car driving itself when “going to a parking lot, or proceeding to a charging or cleaning station,” and says Robotaxi Mission Control “handles any charging and maintenance” for Tesla’s fleet.

That works, but it scales linearly with people, which is why Tesla has described a different long-term design for the vehicle it purpose-built for fleets. Announced design and observed hardware are two different records, so they get two sections.

The Cybercab as announced: no port, inductive only

At the “We, Robot” event on October 10, 2024, Tesla announced the Cybercab would ship with no NACS charge port, wireless induction charging only (per Teslarati). The car parks over a ground pad; power transfers across the air gap; no connector, no robot arm, no technician walking the rows with a cable. The supporting plumbing is real: the FCC granted Tesla a waiver to use ultra-wideband (UWB) positioning so the car can align itself over the pad (per Not a Tesla App). Tesla has teased roughly 25 kW; analysis of released footage put the observed rate around 19 kW at a 35% state of charge (per InsideEVs).

That remains Tesla’s stated long-term design, as reported. It is not what the cars on the road do today, which is the next section. The trade in the announced design is speed for autonomy, and for a robotaxi that is mostly fine, for reasons the math below makes clear.

The worked math, from the EPA filing

The Cybercab's EPA certification filing gave us the numbers to actually compute with (per Electrek, Jun 15, 2026): a 47.6 kWh battery, 418.2 miles of unadjusted combined range, which Electrek estimates at roughly 293 adjusted miles (its estimate, not a published EPA label), and 53.365 kWh of AC energy from the wall per full recharge. That works out to about 182 Wh per mile, or 5.5 mi/kWh, measured at the wall. Tesla’s own certified figure is lower, 165 Wh per mile; both are explained in the cost section.

Numbers rounded, before charging losses, and induction loses more energy than a cable, with Tesla targeting efficiency above 90%. The operational readout: a Cybercab needs roughly 1.5–2.5 pad-hours per service day, absorbed in the idle valleys between demand peaks. Robotaxis already return to the depot between rides for cleaning and staging; charging rides along on dwell time the schedule was paying for anyway. Slow charging is a defect in a road-trip car and a shrug in a depot car.

The cars on the road: a NACS port, DC only, no onboard AC charger

Validation units were first spotted in 2026 with a conventional NACS port behind a small drop-down door in the rear bumper, used to charge on the Supercharger network while wireless infrastructure scales (per Tarantas News). Hands-on reports in September 2026 on the cars in Tesla’s own Austin fleet went further: the port is there, the car charges DC only through it, and there is no onboard AC charger (per Not a Tesla App, September 5, 2026). A Level 2 home wall connector supplies AC, so it cannot charge one of these cars. The detail, and what a private owner does instead, is in the cars opened so far: NACS port, DC only, no onboard AC charger.

Treat that as the reported state of the fleet cars, not a production specification anyone outside Tesla has measured, and not a promise that every future unit ships the same way. For depot planning it settles the near term either way: DC charging equipment for everything on the road today, and conduit laid so inductive pads can land later without tearing up the lot. The pad-hour math above assumes the announced pad rate; a DC session through the port is faster, which shortens dwell rather than changing the site’s power problem.

What charging costs per mile, by state (estimate)

Cost per mile is energy per mile times the price of a kilowatt-hour: Wh per mile ÷ 1,000 × $ per kWh. Both inputs, said exactly:

• 165 Wh per mile is the figure Tesla says the Cybercab is certified at, confirmed by Tesla vice president of vehicle engineering Lars Moravy (per Electrek, May 22, 2026). We could not find an EPA window-sticker listing for the Cybercab on fueleconomy.gov, so do not read it as an EPA label, and the report does not say whether it is measured at the wall or at the battery.
• 182 Wh per mile is our own derivation from the EPA certification filing (per Electrek, June 15, 2026): 53.365 kWh of AC wall energy per full recharge, divided by Electrek’s estimated 293 adjusted miles. Because it is measured at the wall, it already carries AC charging losses. We use the two as a low and high bound.
• Electricity prices are the U.S. Energy Information Administration’s average price to commercial customers for August 2026 (preliminary), from Electric Power Monthly Table 5.6.A, released October 23, 2026. We use commercial rather than residential because a depot buys power on a commercial account, and because it is the same EIA state commercial series that caps DockDuty’s energy adjustment (pricing). It is one summer month; prices move month to month and differ by utility.

The part nobody budgets for: the depot's side of the meter

Here's where charging stops being a vehicle spec and becomes a real-estate problem. One pad at 25 kW is nothing. Fifty stalls at 25 kW is 1.25 megawatts if everything draws at once, a small factory's worth of demand on a single parcel. No sane depot charges everything simultaneously; staggered scheduling against demand peaks and grid pricing is exactly the kind of boring optimization a depot operations layer exists to do. But even a staggered depot needs utility service sized far beyond an ordinary parking lot.

And utility service is the industry's quiet bottleneck. Pad-mount distribution transformers (the gray boxes that step grid power down to a site) carried lead times of roughly 40–65 weeks in 2026 (per Terrapin Consulting Group's 2026 lead-time survey), with larger classes stretching to multiple years as data centers, electrification, and EV charging compete for the same manufacturing capacity (per pv magazine USA, May 11, 2026). Order a transformer today and your depot's power arrives next summer.

This is why our site scouting ranks existing electrical service ahead of rent: a mediocre parcel with a fat utility feed beats a beautiful one that needs new service nobody can deliver for a year. It's also the honest moat argument for depots generally, anyone can lease asphalt; megawatt-class powered asphalt near a robotaxi service area is the thing there's a queue for. (More on evaluating sites and operators in where to park your fleet.)

Who pays for the electricity

At DockDuty, once a depot is open, charging electricity is included in the monthly retainer, with no markup on energy and no separate electricity bill. The retainer can carry an energy adjustment at cost, set each January 1 and July 1, up or down, capped by both the depot’s own electricity bills and the published EIA state commercial price, and never in a depot’s first 12 months. The full terms, the retainer per stall and the per-ride service fee are on pricing. DockDuty is pre-launch, so none of this is being charged today.

Ask any depot you evaluate the same two questions: is electricity passed through or marked up, and how are demand charges shared? A depot quietly arbitraging your kilowatt-hours has a very different fee sheet than its brochure implies. For scale, the table above puts a 180-mile day at roughly $3.40 to $3.70 of electricity at Florida’s August 2026 commercial price, before demand charges (an estimate). Electricity is in the cost stack of the worked owner P&L and the earnings calculator.

The two companion pages

This is the hub for charging. Two narrower questions have their own pages:

• Can you charge a Cybercab at home with a wall connector? The hardware answer: why a Level 2 unit cannot charge a DC-only car, and why public Superchargers are not a between-rides plan.
• Where to park and charge a Cybercab between rides: why Tesla’s own hubs, including the reported south Austin charging hub, serve Tesla’s fleet, and what an independent dock does for a car you own.

Frequently asked questions

Do robotaxis charge themselves?

Not yet. Every driverless fleet in public service, including Waymo, Zoox and Tesla’s robotaxis, drives itself back to a depot or staging lot, and a fleet technician plugs it into a DC charger (who charges robotaxis). Tesla has described inductive ground pads as the Cybercab’s long-term design, which would let the car charge by parking over a pad, but the Cybercabs reported in September 2026 charge by DC cable through a NACS port.

How does a Tesla Cybercab charge?

As reported, by DC only. Per Not a Tesla App (September 5, 2026), the Cybercabs in Tesla’s fleet charge through a NACS port behind a rear-bumper door and have no onboard AC charger, so a Level 2 wall connector cannot charge one. Tesla announced the car as wireless-only in October 2024 and still describes inductive pads as the long-term design; the final production configuration is not public.

Where can a privately owned Cybercab charge?

At a DC charging site or a fleet depot. There is no public Cybercab depot for private owners yet: the robotaxi depots that exist are run by fleet operators for their own cars, and Tesla has published no terms for privately owned Cybercabs to use its hubs. DockDuty is pre-launch; no DockDuty depot is open, and Orlando is our lead market, with its depot targeted for Q4 2026 or Q1 2027.

How much does it cost to charge a Cybercab per mile?

Our estimate is roughly 1.5 to 5.5 cents of electricity per mile depending on the state: about 1.5 to 1.6 cents in Texas, 1.9 to 2.1 cents in Florida and 5.0 to 5.5 cents in California. That is 165 to 182 Wh per mile times EIA’s August 2026 average commercial electricity price for each state. It excludes DC charger demand charges, DC charging losses and charger hardware, which we could not source.

Is 165 Wh per mile an EPA rating?

Not one we could find published. 165 Wh per mile is the figure Tesla says the Cybercab is certified at, as reported by Electrek on May 22, 2026. We found no EPA window-sticker listing for the Cybercab on fueleconomy.gov. Our 182 Wh per mile figure is derived from the EPA certification filing reported by Electrek on June 15, 2026: 53.365 kWh of AC wall energy per full recharge over about 293 adjusted miles.

How much electricity does a robotaxi use per day?

At 165 to 182 Wh per mile, about 30 to 33 kWh for a 180-mile day and about 41 to 46 kWh for a heavy 250-mile day. These are estimates before climate control and DC charging losses.

How fast does Cybercab wireless charging work?

Teased at about 25 kW; observed around 19 kW at 35% state of charge in released footage. Against the 47.6 kWh pack, a 20 to 80% refill takes roughly 70 to 90 minutes, slow for a road trip, routine for a depot dwell. The cars on the road today charge by DC cable, not wirelessly.

Who pays for charging at a robotaxi depot?

It depends on the operator. At DockDuty, once a depot is open, charging electricity is included in the monthly retainer with no markup on energy and no separate electricity bill; see the DockDuty pricing page. Ask any depot whether electricity is passed through or marked up, and who pays demand charges.