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CHG-ON
Still in love after all these miles
UMC meets my needs. SO I am OK. I would have gone for the HPWC, because more is ALWAYS better! But the panel and power upgrade was 3K and I wasn't willing to spend it.
It's adequate for overnight charging of the Model S.
green1
Active Member
I use the UMC for now, I'd prefer to have a HPWC, but I wouldn't be able to make full use of it without a substantial upgrade to the electrical service feeding my house. I may eventually do it anyway, but I haven't decided yet.
I use a UMC. It was the simplest and least expensive solution. 240V 40A is always enough for overnight charging.
Not an Ice
Member
My HPWC vote counts as 2, as I have one at the cottage as well. The cottage electrical will only provide 70 amps though even with 100 amp service to garage and unit set to 80.
SmartElectric
Active Member
UMC
24A on 10-30 receptacle in garage
32A on 14-50 receptacle on side of house
Have also charged on 120V when my 14-50 wasn't yet installed
Also have a Smart ED with a.120V EVSE.
Not even considering HPWC, not needed .
24A on 10-30 receptacle in garage
32A on 14-50 receptacle on side of house
Have also charged on 120V when my 14-50 wasn't yet installed
Also have a Smart ED with a.120V EVSE.
Not even considering HPWC, not needed .
DMC-Orangeville
Audi eTron & John Deere 5100E
HPWC at home - per survey
but:
Eaton charger with J1772 @ 48 amps/208 volts at work - used most frequently
UMC (used twice) with Nema 14-30 at cottage
but:
Eaton charger with J1772 @ 48 amps/208 volts at work - used most frequently
UMC (used twice) with Nema 14-30 at cottage
CHG-ON
Still in love after all these miles
I do get 40A out of my 14-50, charging at night when nothing else is running. I don't drive that many miles anymore (new job), so it works great for me.
Father Bill
Member
I have an HPWC on a 100 amp circuit in my garage, and in my belt and suspenders method I also have a 14-30 outlet for the UMC if the HPWC doesn't work.
Peace,
Father Bill
Peace,
Father Bill
It totally makes sense for you to do this, but is this a good thing from a broader perspective? If we can all charge at work for free during the day we will do so. But this: (1) increases peak demand which may cause more electricity generation to be built, and (2) causes more GHG emissions because additional demand during the day will be met by burning Nat Gas (at least here in Ontario - worse in other jurisdictions that still have coal) rather than generating more electricity from hydro-electric.
Isn't encouraging people to charge during peak demand times a bad idea (unless there is no other option)?
What you say makes sense. But consider this:
-Are you saying that businesses should stop putting in chargers at their location because it will be used during electrical prime time ? To me that would be a step backwards for EV adoption.
-If I don't use the charger, then they may remove it since it is not used. (it is in a locked parking lot, and there is currently one other EV owner that uses the charger. I give him first dibs to it).
Thanks for the reminder on the broader perspective.
I think they should charge you for the cost of electricity at least so that you aren't being given a financial incentive to charge during the day at work rather than charging at home at night. Many buildings have put in chargers as it earns them LEED points and having LEED certification is attractive to tenants, allowing landlords to charge higher rent.
And most Tesla owners don't need to charge during the day given the long range of our vehicles- that can't be said for owners of some other EVs.
And most Tesla owners don't need to charge during the day given the long range of our vehicles- that can't be said for owners of some other EVs.
My employer has 36 level 2 chargers that are all powered by solar panels on the parking garage and available for free charging. The building I work in is also covered with solar panels and is net zero. Some employers are doing it right. [emoji4]
taurusking
Member
That's great to hear. They must have a ton of panels - doesn't a Level 2 draw 7.2kW (240V X 30A). If the panels are similar to the 250W ones on my roof that would mean about 30 panels (which are each about 1x2 m) times 36 or about 1000 panels.
But I presume the chargers aren't just powered by the solar panels as otherwise there is no power on cloudy days.
The parking garage has a 1.153 MW solar array (covering the roof and southern wall, 5 levels high) and many other buildings are covered with panels as well. There's a lot of information about it here. Here's a PDF with a little more information on the charging infrastructure. I believe the charging stations are load balanced so they aren't all producing full output simultaneously.
As you can see below, there are thousands of panels on the garage and other campus buildings:
Here's a Google Maps link that you can zoom in and count all the panels. [emoji41]
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