Hidden Code on Tesla Website Points To Charging Credits for Telsa Model 3 Supercharger Access

It might not be due to launch for another year or more, but the Tesla Model 3 — Tesla’s third mass-produced car and forth model in its ten-year history — is already creating a lot of buzz. In fact, with more than 375,000 customers around the world having already parted with $1,000 each to earn themselves a place in line to order a Model 3 when the order books open next year, the Tesla Model 3 is without doubt the most anticipated electric car in history to date.

Tesla could charge Model 3 owners a small fee for every kWh they use at superchargers.

Tesla could charge Model 3 owners a small fee for every kWh they use at superchargers.

Despite that however, there’s very little we know about the Model 3 beyond what we learned at the unveiling of the Model 3 prototype back in March this year. While we know its general appearance and form factor, approximate 0-60 time, range and entry-level price tag, we don’t know what the Model 3 option list will look like and how much Tesla will charge to activate autopilot or supercharger functionality.

The code was found hidden in Tesla's latest website HTML.

The code was found hidden in Tesla’s latest website HTML.

The chances are we won’t hear answers to all of those questions until Tesla gets a little closer to the Model 3 launch, but this morning thanks to our friends over at Electrek we learned a new piece of information about the way Tesla intends to charge Model 3 owners for access to its network of Supercharger rapid charging stations: supercharger credits.

It appears that Tesla’s most recent update to the Model 3 reservation holder section of its website includes some new, currently-hidden code which hints at a credit-based system for Supercharging in which customers will be able to prepay for time at a Supercharger by associating a credit or debit card to their account, prepaying for charging sessions as needed.

<!– div class=”credit-text card-info-container cc-credits”>
<span>Supercharger Credits </span>
<span> kWh </span>
</div –> == $0

Importantly too, the code, which doesn’t yet do anything yet, shows that Tesla will charge not per unit of time spent at a Supercharger station but by kilowatt-hour, meaning that customers will only be charged for the amount of electricity they put into their car, not the amount of time they’re parked charging. And by charging credits rather than cash, we suspect Tesla may have figured out a way to circumvent laws in certain states that prevent anyone other than public utilities from charging for electricity.

There's no word on what elese we can expect from Model 3.

There’s no word on what elese we can expect from Model 3.

How much Tesla will charge for each kilowatt hour of electricity is still an unknown however, but we should remind readers at this point that Tesla CEO Elon Musk has already dropped some pretty large hints that suggest electricity will be priced fairly at a rate that is commensurate with local utility prices, rather than the highly inflated prices that some charging network providers already charge customers to fast-charge their cars.

Also not known yet is the amount of money Tesla will charge its customers to activate Supercharging on their Model 3. It’s possible that turning on Supercharger capabilities for the first time will incur a one-off setup fee, but it’s also possible that Tesla will simply levy a smaller charge every time the car uses a Supercharger station.

At the time of writing, Tesla hasn’t issued any response to this story, but if there is an official statement made we’ll make sure you know.


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  • “the Tesla Model 3 is without doubt the most anticipated electric car in history to date.”

    There, fixed that for ya 😉

  • What if … credit(s) were earned (as in rewarded) and not purchased?

    Example: if Tesla charging credits (TCC) were allocated based on miles driven, or an allotment of so many each month.

    There is some evidence that owners of Tesla vehicles typically use Supercharger miles for less than 7% of annual miles traveled. By far the majority of charging occurs at home and workplace.

    I’m not ruling out an option to purchase credits, (for those with higher supercharged mile needs), just saying what if …

  • Martin Lacey


    If Tesla stick to near parity with local domestic utility costs but charge a set up fee or an annual admin fee, then it kills the need for SC use on everything other than long trips. This should prevent system queues, except on holiday weekends and means they can meet SC demand without quintupling the current network!

    I’m guessing this is to deter the free loaders who like some S and X owners want to use the SC network for all their charging, because they paid a one off fee or it came as a freebie at the point of sale.

    Smart move Tesla, smart move!

  • Chris Stanley

    How refreshing- charging per kWh rather than by time. Are you listening Ecotricity?