Fast charging was mentioned.
Mostly, globally, new housing is delivered with 380V 3-phase
infrastructure, and this is commonly installed to new houses and
apartments in the EU + OECD, of can be added with trivial connections.
Apart from the USA, more or less all the OECD world uses 220V single
phase, derived from a common 380 V 3-phase local distribution network.
For example saunas, ubiquituous in Scandinavia, and often ovens, are
3-phase devices, in the main.
Power is measured in kilowatts, not amps, and should be quoted in kW,
since 100 amps is very different for 110V, 220V, and 380V 3-phase.
But kW = kW and thus can be compared globally.
For example, I have 64 amps of 380V 3-phase, and all devices use 220V
standard EU power, upto 6-7 kW available.
However, since I do have 3-phase installed, I have plugs / GFIs and
wiring for it.
I can thus connect a fast home charger of 22 kW, for an electric car.
Cost = zero,
..since I already have the 3-phase power connected (permitted, wired
etc.) (and pay for it).
No electrician is needed in that case.
I could change or have any local installer change plugs, at need, and it
costs about 20€ + the plug (same 20€ wholesale).
Charging at 22 kW, for a mid-range sedan of 200W/km, means typical needs
of 31 km/day are 31 x 200 = 6.2 kWh.
This takes about 17 minutes, for average daily use.
A full charge of 90 kWh would thus take about 4 hours.
Cheap rates, Spain, are 12 pm to 7 am.
2-3 euro cents / kWh, depending.
--
Costs vary widly in oecd countries.
A new full 25 kW electrical install (house, flat) is often (very)
expensive, but can vary tremendously, from 4000 € to 30.000 € for a flat
or house or workshop.
Costs are real examples, with work, materials, permits included.
One example is most old construction in southern europe..
old installs are grandfathered in, but You cannot raise the installed
capacity without doing all-new wiring, plugs, permits, for 10-15.000 €,
typically.
Sometimes, You can do 2 meters, with a new install for a garage/workshop
on a separate contract.
(I have 2 meters for example.)
--
One of the huge blunders in the GM Bolt, Opel e-ampera, that
cripples/kills it, is home-charging at only 7 kW, which is ridiculous.
When cheap charging at home is commonly available for 22 kW, and the
GM/Opel car only has 7 kW, this makes it a charge-crippled
non-competitive offering.
Until it is actually available in europe, we wont know if home-charging
could use the fast-charging systems.
Reports are of a "few hundred" EU deliveries by end of year, so...
The other problem is that the Bolt battery from LG Chem, is only 250
Wh/kg, and is likely about 180$ / kWh pack cost, based on 145$/kWh cell
costs, as leaked by GM.
So the current "best" offering ex-tesla on BEVs is about 50% less energy
dense on the batteries, and 80% higher on cell costs, with no idea on
longevity.
-hanermo (cnc designs)
Posted by: Hannu Venermo <gcode.fi@gmail.com>
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