There will also be, either via legislation or supply contract, a deadline to replace dumb wall boxes with those controllable via smart meter gateways. Their roll out has begun about half a year ago here.
You have some link?
for the requirement or the smart meter roll out? For the latter there where press releases https://www.eon.com/de/ueber-uns/presse ... eways.html
For the former not as far as i know, it is what our customers tell us and is fairly obvious: why have a smart grid, a smart meter requirement (!) starting at an annual 6000 KWh*, and not require the single biggest load sink to talk to it....
My earlier argument was wrong. 9 million cars lead to an peak power increase of 8 GW. How much peak power increase for 27 million cars?
If the expected peak power demand of cars coincide with peak power demand today the answer is clear. But what if peak power for cars are during holidays when industry is closed? Then 8 GW for 9 million cars does not equal 24 extra GW for 27 million electric cars. It may also be 50 GW. Pure speculation.
no one knows yet, especially since wall boxes are not all that common yet ..... but you absolutely want them as a load sink for excess production, which would be most of the time in a system delivering stable power from renewables only.
While a 200 mile range is necessary to avoid anxiety most are driving less than 50 miles a day. Not much of a draw on the grid.
Only w/o days where lots of people drive long distances like holidays, beginning of vacation times. And 50 miles/day is still 100% increase in domestic electricity use in most places....
Oh, and you should be hooked to the grid when there is plenty of power....
You have vastly overestimated electric demands in your fear mongering
(I believe it has more to do with trying to defend a dying German ICE industry).
BS, i am quite consistent in stating that we need to go all renewable, and that won´t work without electric vehicles. I like hydrogen fuel cell for longer range cars a lot better, since they are a) lighter, b) once we have 100% renewable we have overproduction at most times and, since we already have enough storage for several month worth of hydrogen, but for mere minutes for electricity the relative inefficiency becomes fairly irrelevant.
I am also pretty consistent in stating that i don´t think BEV are a thread to the German car industry, as the enormous R&D budget (German car R&D/year = Teslas turnover) always wins in the long run, and have done so for years. Noticed that even the rather mediocre debut car eTron is outselling Tesla in some key markets.... ?
I am also drawing a good deal of my pay for making the grid ready for the onslaught of BEV, so i am pretty fine with the consequences.
There will never be 40 million cars in Germany connected to the grid at one time.
I made quite clear i don´t expect all 40 million cars connected to the grid, i used 40 Million (to high) times 3.7 KW (very low, as most BEV have 7.4 or more) to point out the magnitude of power draw BEV can have.
There will never be 40 million cars in Germany connected over the course of an entire day, because people just don't drive that much.
All BEV or PHEV drivers, admittedly only half a dozen so far, i know hook it up every chance they get. Those 8~10 KWh/day the average car will need to drive its average 40km become a lot if people plug that in when they get home for work, because for most people that is some time between 5 and 7pm, and recharging that from a wall socket takes 2-3 hours......
Most charge only every few days or even once a week and most charge at night. You said something about cars connected for 8-12 hours a day.
that is the available grid connected time, not the time they actually charged. In case you have missed that again, i am on record that BEVs can be handled by the grid, but that it will require a smart grid, and that comes with supply controlled pricing... so your energy might get really pricy if you want to charge at the "right" time.
I have a car that takes 9+ hours to fully charge, but that is only at ~13 amps @ 110v.
So will my next car, as that will also be a PHEV, only with [email protected]
Those big travel days you forsee as a problem - if people are sitting in cars, then nobody is working and industrial use is nil.
BEV usually don´t charge when people sit in them. The problem is them getting home and plugging in their cars. Just 10% of an all BEV fleet connected to the grid via a 11KW Wall box charger doubles base load, and together with base load exceed production and grid capacity. You don´t need anyone working to make that a lot of power.
Where I live, there is no problem with the proposed future needs even at this time because of excess capacity after 7PM
whats the share of BEV in your area.... some 30% of BEV turned Norway from a rather large energy exporter into an importer.
perhaps your fears are also grounded in Germany's senseless energy policies?
considering that we have the arguably most stable grid on the planet**, despite 75% peak renewable, providing that power i see no reason to think we have senseless energy policies (beyond running those lignite plants), espechially considering that you pay
It is here now and with rates hitting $.40/kWh, they can kiss my a$$ goodbye.
and i pay
*6000KWh/year is above average for a 4-person household with electric water heating around here.
**average power outage accumulated time per user: less than 14 minutes, while in the US it is 112 minutes
This Singature is a safe space......