Can I make my garage a Supercharger?

I'm just thinking...since a Supercharger uses exactly the same cable as the HPWC, is it possible to have an electrician send enough current into the HPWC to turn it into a Supercharger? If there is circuitry inside the HPWC to prevent that, does that mean that only Tesla can make a SC?

Short answer is no.... It is a DC charging system not an AC charging system...

So how could I put an SC in my garage? Is it only technology that Tesla will allow at company locations?

A Supercharger supplies a voltage of 120 kWh. It is an incredibly high voltage system and it is considered industrial grade. It would not be possible for installation at home.

How much electricity does your house have? (the feed from the utility)

I don't think they use the same cable. The supercharger cable is thicker.

Short answer is, actually, "yes". I'd Superchargers can be made and installed anywhere at all, they can also be installed at home. Say you buy an existing Supercharger and then build a home around it :)

The issue is not AC vs. DC but the cost of this. DC can be made from AC easily. It just costs a lot at these amperages. You'd need a supply that can handle at least 120 kW, which would be equal to 500 Amps at 240V. And that kind of service is usually not available for homes unless we're talking palaces...

No it is not the same cable and wires are connected to different pins.

Just watched the lecture from the head engineer of Tesla that answered that exact question from one of the students listening to the lecture. He said it would not be possible to supercharge at home because of the large amount of electricity needed to charge at the speed that the supercharger loads the Tesla battery.

It's the thread that says something about battery swapping and FUD.

Yes, the cable itself is different as well. There is a lot of equipment that has to be put in. It is not possible, well at least for any reasonable sum of money.

I'm curious about putting a SC outside available for other users at my place. If I *could* get the wiring, I am wondering if the same connector can be used. I'm getting the idea that a SC is a different animal than a home charger (HPWC). More wiring isn't enough, apparently.

So will Tesla sell me a Supercharger?

From what I have seen, the supercharger has an input voltage of 480v AC and there is almost no chance of getting that voltage installed at a home. My business has 480 volt service, but have never heard of a home that would be able to get that kind of power. There are exceptions such as farms/ranches that will have that level of power for equipment, etc and then step down for the home use. I would also guess that a single supercharger would cost in the range of $100,000...

"I'm getting the idea that a SC is a different animal than a home charger (HPWC). More wiring isn't enough, apparently."

Uh, yeah. Have you ever been to a Supercharger? Did you happen to notice the giant transformers at one end or the other of the row of chargers (often they're in green metal cabinets, or surrounded by a fence)?

Those svelte little pylons with "Tesla" on them are just the distribution points; the "supercharging" is done with large industrial transformers. I'm pretty sure that even if you had that kind of power (400-700kV) coming into your neighborhood, there's no way your building codes would allow something like that.

So if you wanted your own Supercharger, not only would you need a hundred grand or so (Tesla says it's $100K-$175K), you'd need a building or lot in an industrial area of town to house it.

I actually had the pleasure of talking to JB and Josh about this on Sunday. I asked about licensing the supercharging technology to other people. Essential JB said no. The reason being, they don't want to have superchargers out there that confuse the customer. The best example he gave was, an owner drives to a supercharger that isn't owned or operated by Tesla, the charger doesn't work. Now, the customer is upset because he/she can't charge his car. Tesla is controlling, which in the case of infrastructure is a good quality to have. I would rather Tesla build every charger and always have every charger working, than not know who owns this specific supercharger and have to figure out who to complain to when I have a problem.

@tesla.mahedy: that's my ultimate goal and purpose of this thread: I'm interested in non-Tesla Superchargers at locations that Tesla wouldn't be interested in. Could independent companies put for-pay SCs in alternate places?

Technically, yes. There is no scientific reason that supercharger cannot work at home.

But practically, due legal, financial, codings, politics, then it's a no.

Your garage needs:

1) Big well ventilated space for those bigger than 4 x refrigerator size noisy electric wonder cabinets and transformers.

They usually occupy at least a size of 2 parking spaces, behind a 6 foot wall, and hidden from your sight so you don't notice them.

2) Deadly high voltage feed.

3) Building code for residential (which is a non-starter.)

4) Negotiate a financial and legal deal with Tesla for usage of its technology.

5) About $200,000 more or less for construction which is in addition to the money you spend on #4 licensing deal.

Good luck!


However, as long as can persuade that your property is a good location for owners to stop by, suggest that to Tesla and it would build a supercharger station on your property for free.

as @tesla.mahedy said, as long as the technology belongs to them, and they have full control to it, then your property is good to go to receive a supercharger :)

Tesla would take care of all the construction, maintenance and electricity costs.

Good luck!

I came across this pic a while ago. I wonder whose house this is :-)

Think that picture is from one of the California Tesla stores.


I wonder whose nice car this is :)

It is a commercial building "Subway Sandwich" that fools us as if if it's a home :)

It's part of Harris Ranch, CA.

I'm sure you could pay to have it installed in your garage but you would have to have contracts and all sorts of legal documents in place that say its not actually yours and that tesla maintains full rights. I asked Josh (one of the leading engineers and the designer of the charging system) and JB about this for racing applications. It is clearly something that they've thought about.

I wonder, why not build a ChaDeMo (or wherever the caps are) charger and get the adapter? You could probably fix the adapter permanently onto the charging station. Almost a supercharger?

Thanks @tesla.mahedy

Great consolation prize that I never thought of.

Just pay for about $17,000 (bulk price, single unit price higher).

If you can't get 120 kW, just get your own 50kW station!

There are already portable SC units deployed in the wild that aren't very big. There's one currently installed on a temporary basis in the Montgomery Mall parking garage in Bethesda, MD. It is on a big metal pallet and can be moved around with a heavy duty forklift. Apparently a single charging unit can be fairly compact. With that said, no regular house has enough on site base electrical power to come close to driving the SC's needs.

The HPWC is an excellent alternative. It uses 50% of a 200 amp home AC supply panel with a 100 amp circuit breaker. It requires dual chargers in the Model S and current flows at a maximum of 58 mph.

Now if a "home version" of the SuperCharger were allowed, perhaps 4 chargers (like the ones inside the vehicle) could be housed in an electrical cabinet. The entire 200 amps for the home would flow into the 4 AC to DC chargers for Model S. it could provide as much as 116 miles per hour into the vehicle.

Some homes have 400 amp AC supply panels, so I assume it might be possible to have more powerful home versions. But buying a second Model S to charge while driving the first one may be a less costly proposition.

Forget my house, folks. I'm really interested in putting one in a place that Tesla probably won't consider, so it would be a for-pay commercial Supercharger. It can't be a HPWC, that's not fast enough to give you trip continuance. I'm thinking about an SC that MS owners pay to use because they couldn't get a fast charge any other way.

I think another obstacle to rolling your own supercharger is the whole handshaking procedure when you first connect the cable.

"Hi, I'm Model A with Battery Z, can you give me XXX Voltage?"

"Hi yourself, I'm a supercharger, please give me direct DC access to the battery."

"Sure thing, here you go..."


I assumed that was your agenda. Best to just state it up front, and not waste time.

On one hand, Tesla may decide to keep a closed system like Apple.

On the other, there IS a market for third party pay per use chargers.

I think at some point, several years down the road, Tesla may license the technology. I assume you might want to be in the modern "filling station business" complete with burritos and blue slurpies. Personaly, if there were no supercharger in range, I WOULD pay for a third party supercharger. I think it's a viable business model. Once we have a million Teslae on the road by 2020, we're going to need as many charging options as possible.

my .02 c

@wolfpet, That car looks like e.musk's.

The picture is obviously a dealer plate... so a Tesla store.


Just put in a Chademo direct DC unit or a Clipper Creek 100A AC. For-fee charging is very common. Chargepoint, etc.

X Deutschland Site Besuchen