Installation Photos

New 220V EV Car Charger Installation

Garage (interior) installation.  Done first while waiting for load center to come from Home Depot.
EV Charger is Clipper Creek LCS-20, 15A, 240V charging, 22' cord (#0705-00-017) for $400.  This charger is all that is needed for a Chevy Volt.
Now charges in 4-hrs.

Cost for Load Center, new breakers, wiring, etc. was approx. $100.

Used 10-ga. wiring to allow for potential future change to a 30A car charger (i.e. for an all-electric car).

Wiring from outside AC unit to garage interior.

Exterior installation:

New Load Center installed.
Load wiring from main panel feeds from the back.
New 50A circuit to existing downstairs AC condenser feeds out side back to original AC disconnect box.
New 20A circuit for car charger feeds out bottom of the box and then down into garage.

Wiring back to original AC disconnect box.

 New exterior install.

Feeding into garage.

 Note: Both circuits should not be on at the same time, which is not a problem because we only use the downstairs AC during peak summer days, and only during the daytime.  Whereas we only charge the car at night.

This is not an ideal solution, but at least now I have confidence in the quality of the wiring feeding the EV car charger (which I did not have previously)...

Pre-Installation

New 220V EV Car Charger Installation

Basis:
No suitable circuit in or near garage.  All are common 15A circuits with 14-ga. wiring.  Not considered reliable, except for low-level charging = 12-hrs. for Chevy Volt.

Running new circuit to garage would be very expensive because main panel is on other side of house.  Would need to run new wires through house, or outside (above-ground or underground).

However:
Garage is very close to outside Air Conditioning condensers (one unit for upstairs and one for downstairs), that are each fed by a dedicated 60A circuit.

Downstairs AC unit is rarely used and is only rated at 31.2 amps, requiring a 50A circuit.