FrankAug 12, 2018
bhtooefr

All parking lots should be required to be covered by solar panels.

All parking lots shall have a minimum percentage of parking spaces with dedicated Level 2 J1772 EVSEs (or for countries that don't use J1772, the equivalent standard) equal to the percentage of plug-in vehicles registered in the jurisdiction (for the US, the state).

Aug 12, 2018 at 1:58pmWeb
Show threadbhtooefrAug 12, 2018

Rationale for the solar panel coverage: Parking lots, especially when they're just flat single-level lots, are huge surface area, the asphalt traps lots of heat, and they're a lot of land area that could be used for solar generation without interfering at all with the intended use.

In fact, they improve the intended use - in summer, solar heating of car interiors is reduced, and in winter, snow coverage of cars is reduced.

Show threadbhtooefrAug 12, 2018
As far as the J1772 charging in lots... the solar generation peak coincides with when people are at work. So, charging of EVs is best done at work, not at home, and that requires charging facilities to be in parking lots (and garages) that people use - this will help stabilize the grid as solar's share of the generation mix increases.
Show threadbhtooefrAug 12, 2018
Also, Level 2 J1772 basically means 208-240 volts AC, and in practice, typically 30 amps for public charging (although I've seen cars taking as little as 10 amps, and Tesla's cars can take as much as 80 amps on AC charging).
Show threadbhtooefrAug 12, 2018
I'll note that basically everywhere except China uses the same J1772 protocol signalling for AC charging, just with different connectors (I'm aware of three connectors in wide circulation - SAE J1772-2009 in the US and Japan, VDE-AR-E 2623-2-2 (aka Mennekes) in Europe (which has more pins and adds support for using all three phases of a three-phase AC source), and Tesla's proprietary connector in J1772 regions).
Show threadbhtooefrAug 12, 2018

China uses their own connector derived from VDE-AR-E 2623-2-2, called GB/T 20234.2-2015.

Signalling is different from the rest of the world, and the Chinese standard has the plug on the cable, socket on the vehicle, whereas the European standard has the plug on the vehicle, socket on the cable.

Show threadbhtooefrAug 12, 2018
(Also, to clear up some ambiguity here, I prefer to use "plug" and "socket" designation instead of "male" and "female". Most documentation of this actually uses "male" and "female".)
Show threadAlex@rtnVFRmedia Suffolk UKAug 12, 2018

@bhtooefr

for my region, an EV street charging supply can normally be supplied at 16A 230/400V or 32A 230/400V (similar to those provided for market stalls). TT earthing (local earth spike, not derived from supply neutral) is mandatory.

It can even be obtained from an existing street lamp, but the available power might be less.

They have already provided a comprehensive set of documents about this:

https://www.ukpowernetworks.co.uk/electricity/electric-vehicle-charging-point

Show threadbhtooefrAug 12, 2018
@vfrmedia Yeah, typical here for public charging is 30 A, 240 V for native single-phase, and 30 A, 208 V for single-phase from 120/208 V wye service.
Show threadAlex@rtnVFRmedia Suffolk UKAug 12, 2018

LB: tech acronym used here is for a plug/socket arrangement to charge an electric vehicle.

If you are outside the USA, it may be one of the connectors below.

https://en.wikipedia.org/wiki/Type_2_connector

of course, a further electricity source is beneficial to everyone in the neighbourhood, even if they don't drive one of these cars! (street lighting, power for broadband cabinets and mobile phone masts, maybe even some nearby houses)

@bhtooefr