hit the nail on the head:
For a photovoltaic system, there is 0.00% funding thanks to the government....
Please what?!
Where do you actually think the Renewable Energy Act remuneration, guaranteed for 20 years, comes from? That is a huge funding program that has been running for decades and still continues. Billions (!) of euros flow annually through the Renewable Energy Act surcharge!
In addition, there are loan programs and grants from KfW. States, municipalities, and regional suppliers also have programs.
Not e-car, but mini e-car...
... which is a lot of fun. I myself ordered an e-UP, but it probably won't be delivered until next summer *cry*.
That is exactly the right application. Charging the car from the storage is nonsense - especially since most systems have very limited discharge power. Surplus electricity into the car, intelligently controlled by a smart device and good guidelines for the scenarios.
That’s the right approach because a photovoltaic system nowadays pays off without subsidies. Incentives just don’t make sense anymore.
Charging from the stationary storage is okay if you already have one (it’s already there). Planning such a scheme specifically is usually not sensible. You’ve already named the reasons besides the economic ones. The storage isn’t even capable of delivering the high charging current of the BEV.
What is relatively easily possible is surplus charging. So adjusting the BEV charging to the surplus currently coming from the roof. That can be done expensively with system solutions, e.g. “all components from SMA” (where you need to charge an awful lot for it ever to pay off), somewhat cheaper e.g. in the form of an openWB wallbox or “self-made,” as I have already implemented, using a controllable wallbox (there aren’t many of those, in my case go-eCharger) and a bit of software that queries data from the inverter and controls the wallbox accordingly.
Last but not least, there are simply almost no vehicles yet that feed their stored electricity back into the building. That is still just gray theory like battery cell recycling. But it will certainly come; the whole topic is still in its infancy.
That is the solution to the puzzle! There were great discounts in January and then the Corona bonus. Totals to a few bucks over 11,000 euros. Once you’ve driven the car, never again a combustion engine. Amazing thing . But it’s a bit off-topic, just wanted to show what prices are possible at the moment... maybe there will be a "promotion" for solar as well.
You caught the absolute best time (high manufacturer discount in Q1 and subsequently increased incentives). My ordered e-UP comes from a list price of €25,800 after discount and subsidy and including registration to a neat €15,000. Considering the equipment and driving performance, that’s unbeatable value compared to a combustion engine. Plus there are tax advantages and low operating costs. Simply a good deal.
Though that is really crazy cheap if you compare it to photovoltaics storage which rarely costs less than €1k/kWh. Why does it cost only a third in the car and there are still wheels, motor, seats, ... included?
Even with a €6k e-car subsidy, that is not explainable?!
Am I making a thinking error or should we rather take the batteries from cars and use them as photovoltaic storage?
Well, because cars are currently heavily subsidized. Also, they may not have the same type of cells and the volumes are entirely different anyway.
I’ll tag along. My lease ends in December and I’m looking for a successor. Because of the e-car subsidy, I came across the Passat GTE (hybrid), which is currently offered very cheaply. Photovoltaics on the roof present. But since I’m usually home after 8 p.m., charging then is not really possible. Therefore, charging in the morning hours would be interesting. Ikea offers free charging and I basically have it opposite my workplace and could hook up the car there during the day. If something doesn’t work, the gasoline engine could still be used. Is there a limitation here compared to the non-hybrid in range if you wouldn’t use electric at all? Anyone have experience with that?
For this plan, in renowned e-mobility forums, you would first be stoned, then quartered, and then (locally emission-free) dragged around the village. Why?
First, there is a divide between BEV and PHEV drivers. Because the latter are allegedly just company cars that are never actually driven electrically and are only bought because of tax benefits. On the other hand, they clog up the charging infrastructure which BEV drivers rely on.
Additionally, there is the completely wrong expectation that charging is free. Yes, there are such offers, but that’s mainly marketing by supermarkets that are constantly reducing these offers. Because it’s abused (people don’t shop but sit in the car for an hour and mooch electricity) and causes trouble.
Moreover, and I can only confirm this, it must be clear that a CHARGING spot is not a PARKING spot. That’s why the “hate” on PHEV drivers is particularly strong, who with their mini batteries and mostly rather slow charging electronics believe they can stand on a CHARGING spot for hours even though they are not charging. To be clear: Once you have finished charging, free the charging spot!
Even worse are people with E-license plates who treat charging spots as exclusive E-parking spots, i.e. just park and do not even plug in for an alibi (e.g. plugging in at 90% state of charge). This is problematic because the spot is then obviously unnecessarily blocked. In apps it is shown as free and arriving on site, especially as a BEV driver with “charging emergency,” is simply the most antisocial situation you can imagine as an e-motorist. Unfortunately, this is favored in some cities because the signage allows this behavior or was simply chosen stupidly. But this is changing; nowadays more and more parking spots are signed with the restriction that parking is only allowed during the charging process. That means after finishing charging you must move your car, otherwise it will quickly end up at the tow yard. Some big cities are already known for cracking down rigorously and hardcore e-motorists have made it their mission to have cars towed.
So again in short:
If the plan is to buy an e-vehicle, BEV or PHEV, because somewhere there is free electricity, that is at best shortsighted. And if you don’t want trouble at the charging station, move your car as soon as charging is finished.