992Mirage

Apologies if this has been discussed somewhere (I assume it has) - didn't have any luck with the search function.

I've been kicking the tires lately on a taycan, and am in the early stages of talking to electricians about a home set-up for EV charging.

I was thinking this was going to be a $2-3k project...but its looking it might be more like $6-8k! (Need a 200 amp panel, and sub panel in the garage (my garage is detached from my house), chargers on both sides of garage for two cars, etc.)

Anybody care to share how you set up your home garage and the costs involved?

Zcd1

There will be a wide range of situations and therefore costs incurred.

Installing a single, 40-amp 220V socket in our garages cost me $350 for each attached garage, and $500 for a detached garage. In all cases, we had enough power in our existing panels, so this was just breaker, wiring, socket and labor. We use my Tesla mobile charger for both of our EVs, with a TeslaTap for the Genesis. As we don't commute, we each only need to charge about once a week, so no need for 2 separate chargers for us.

A friend just paid about $1200 to have an EA home charging unit installed in his attached garage.

Definitely get a few estimates, as it seems that some electricians think that if you can afford an EV, you can afford to pay a premium for what is really just installing service equivalent to what you'd need for an electric clothes dryer...

Spyerx

Over $3k + charger - and this was a deal as I was doing remodel work at time and electrician is a family member. He only charged me actual hard labor costs + parts.
I have 200a service. The main panel is on front right of house, the garage is 2 levels below (on a hill, with lots of concrete retaining walls) and 140ft behind where the main panel is. We reused conduit that got us about 1/2 way there, then it was cutting a lot of holes in walls to route cabling/conduit to garage, install a sub panel, route conduit to the charger and hardwire. I pulled a 60a circuit as the conduit we used wouldn't be rated for bigger wire, but used a 50a breaker for the charger as I have a couple other small loads we added.
When the house was built in 2009 they ran 4 120v 20a circuits to the garage (lights, wall sockets, garage door opener, outdoor lights) but no sub panel!

Anyway... if you do not have a 220v circuit in the garage it may take some work to get the power there. If you are going through the effort (most of it will be labor) it would make sense to spend now and setup for 2 chargers. That said, 1 is enough for most use cases unless both cars are driven a lot daily.

daveo4porsche

https://rennlist.com/forums/taycan/1...-charging.html

depends on your home's existing electrical system

primary factors driving cost are:

• existing "open" capacity in your existing electrical panel
  • is there physical space for a new 240V breaker?
  • is there AMP capacity vs. total AMP capacity vs. your service breaker?
• distance from the main panel to your EVSE (EV charger) install location
• easy/complexity of pulling new wire from existing electrical panel to desired location
• planning for future
  • are you only provisioning for one EV or future multiple EVs?
• AMP capacity of EVSE you plan to install (20 to 100 amps)

the top 3 bullets are the main driver of install cost - you'll need an electrician to evaluate your home's existing electrical system to get an accurate estimate - cost can be nearly trival or outragously expensive depending on the sitaution with the top 3 bullets…

daveo4porsche

https://rennlist.com/forums/taycan/1...l#post18298651

post #82 is example of a 50 amp install that was trival because all the factors "aligned" such that is was no big deal - I'd suggest this is about as cheap as it can be done (less than $300 + 3 hours personal labor).

this is an example of how cheap/trivial adding EV charging can be - but _ALL_ the factors were in my favor…

• lots of open AMP capacity in the main box
• lots of physical capacity in the main box
• virtually no distance from main box to install location (less than 20ft of wire)
• zero complexity for pulling the wires - there was existing "path/conduit" to pull the wire from box to install location.

total cost for parts was: $215 + 3 hours labor (could've been done in less than 2 hours if I wasn't "training" my son)

earl pottinger

My friend added an entire machine shop in his basement 240 AC/180 Amp I believe. The wiring only cost $500 CDN to install, but he and his father had built the house in the first place and his father was completely 'Old School' and overbuilt everything. As pointed elsewhere. a lot depends on what your house already has installed.

daveo4porsche

start with this Porsche document for guidance - the Hubble socket alone is $75 or more…

https://static.nhtsa.gov/odi/tsbs/20...22530-0001.pdf

Sleepy996

My 40-amp 220V socket in our garage cost $382 installed. I was lucky my breaker was in the garage already near the mounting point so I am sure that kept my costs down. GL

thebishman

I purchased:
Chargepoint Flex EVSE ~ $700
Hubbell Socket ~ $80

Electrician cost to install cable; 40A breaker; Socket and EVSE ~$375

(Luckily I had the necessary sub-panel located below my garage so an easy install and short run of cable which kept the cost down)

Vfr750

Porsche Wall Charger -> $1.5k
About 10 feet of 220V/80A line + 100A breaker -> 800$
Works like charm, never plug the car more than 2/3 hours (very important for the Wife, not able to keep Phone charged...so a car!).

bluelines1974

There is almost an infinite range of scenarios here. Old house with 100A service and a detached garage a long way from the main panel could mean a service upgrade and then additional wiring to install a sub-panel in the garage. Or it could be a new build in a jurisdiction that mandates pre-wiring for EV chargers, in which case it’s just a case of plugging in or hard wiring the actual charging station. In our current new build house we have a 400A main service and will have two 50A breakers on a sub-panel for the two EV chargers. In the previous house we paid about $2500 for the charging station and installation, since the electrician had to bring the wiring from the main panel in the basement on a fairly long run to the garage.

usctrojanGT3

My home was pre-wired but with a cheap outlet plug which a buddy replaced with the Hubbell outlet/cover and then later installed the WallBox charger. Cost = $100 for hardware + $600 charger + 2 lunches.

Spyerx

the hubbell plug is very robust. Well made. Better with a deeper box!

thanks for lunch! 🤣

whiz944

I had a 14-50 installed when we did our initial solar install. They were installing a new sub-panel anyway - right next to the driveway. I also had a 120V 5-20 installed below the sub-panel to it for vacuum cleaner, etc. So it only added a couple hundred dollars to the cost of the solar project.

Am thinking of removing the 14-50, and upgrading the setup to a hardwired "60 amp" wall connector for 48 amp charging. This would only require a couple of 60 amp breakers (one in the main panel, and one in the subpanel) because the wiring is already #6 THHN in conduit. Also thinking about upgrading the 5-20 to a Leviton 5842 which is a "dual voltage" receptacle with a 5-20 and a 6-20 in one. Since it is not a GFCI receptacle, I'd have to buy a GFCI 240V breaker to replace the dumb 120V breaker that is there now.

daveo4porsche

these are great idea's - more 240V outlets is always useful!!

and 60 amp EVSE circuit for 48 amp charging is awesme - even the new Chevy Bolt's support 48 amp charging these days - it seems to be a thing!!