ᐅ Electric Vehicle – Bidirectional Charging: The Next-Generation Battery Storage
Created on: 19 Dec 2021 23:09
D
DaSch17
Hello everyone,
I am going to buy a new car this week. This time it will be an electric vehicle.
The choice will be between the VW ID.5 GTX and the Audi Q4 e-tron 50 quattro.
During my research, I found out that the ID.5 has a really cool and new feature for EVs: the 77 kWh (84.2 kWh) battery can be charged and discharged bidirectionally. This means the ID.5’s battery can serve as a storage system for self-generated solar power from photovoltaic panels. That’s pretty brilliant!
Has anyone here looked into this in more detail and can share some insights?
And maybe we have some car enthusiasts here who know whether the Q4 e-tron is equipped with the same technology?
Since both the ID.5 and the Q4 e-tron are manufactured in Zwickau and are largely similar, does this also apply to the battery technology?
If this really works reliably, in my opinion, it would be another milestone toward even greater energy independence!
I’m looking forward to the discussion…
I am going to buy a new car this week. This time it will be an electric vehicle.
The choice will be between the VW ID.5 GTX and the Audi Q4 e-tron 50 quattro.
During my research, I found out that the ID.5 has a really cool and new feature for EVs: the 77 kWh (84.2 kWh) battery can be charged and discharged bidirectionally. This means the ID.5’s battery can serve as a storage system for self-generated solar power from photovoltaic panels. That’s pretty brilliant!
Has anyone here looked into this in more detail and can share some insights?
And maybe we have some car enthusiasts here who know whether the Q4 e-tron is equipped with the same technology?
Since both the ID.5 and the Q4 e-tron are manufactured in Zwickau and are largely similar, does this also apply to the battery technology?
If this really works reliably, in my opinion, it would be another milestone toward even greater energy independence!
I’m looking forward to the discussion…
driver55 schrieb:
“Pseudo plug-in hybrid boxes” practically handed out And 40% of hybrids haven’t even unpacked the charging cable at their first inspection..
But I would like to have one.. 14km (9 miles) daily to work and longer trips with the kids on weekends would be perfect for us.
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Benutzer20021 Dec 2021 20:26RotorMotor schrieb:
But why use it so cheaply for private purposes? Neither 25% nor 50% nor 100% of the list price is a fair basis for taxation! Then the salary just has to be higher to compensate for the taxation. In my job, I need a car with a list price of 75,000 euros (about $75,000) as a "status symbol" for my clients. Then it makes sense again.
driver55 schrieb:
What really doesn’t work is that these “pseudo plug-in hybrids” are practically being handed out. Well, company car policy is the issue. We are only allowed hybrids if they are charged both at the office (if applicable for office work) AND at home. And let’s be honest. Most hybrid users barely ever unpack their charging cables – that’s mostly a myth. Which hybrid driver of Mercedes/BMW, etc., who also has their charging costs covered, doesn’t have 300+ horsepower (HP) under the hood? That’s also fun. Excluding my purely diesel-fueled vacation trips, I get about 60-70% electric driving. That’s more than respectable!
tomtom79 schrieb:
And 40% of plug-in hybrids haven't even unpacked the charging cable by the first inspection..
But I would like to have one.. 14km (9 miles) daily to work and longer trips with the kids on weekends would be perfect for us.Plugin hybrids combine the worst of both worlds. That doesn’t mean there aren’t legitimate use cases for them.
However, before making a purchase decision, I strongly recommend reading user reviews. Long-distance driving can be quite frustrating. Performance drops sharply once the battery is depleted, and fuel consumption increases significantly.
Hager and Audi are also working on this right now. In the end, it will come down to DC, which means new wall chargers will probably be needed. In general, I find it quite interesting to draw a little power from the car at night. An electric vehicle should never be completely drained at night. Especially in combination with a proper surplus charging management system, I see a certain benefit in this.
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Benutzer20022 Dec 2021 10:14guckuck2 schrieb:
Before making a purchase decision, I strongly recommend checking user reviews. Long distances can be quite unpleasant. Performance drops significantly once the battery is depleted, and fuel consumption increases dramatically. This depends heavily on the model. Mercedes diesel hybrids consume less diesel during normal driving than the conventional combustion engine version.
However, a Passat GTE (at least the latest model) was quite sluggish without electric assistance.
konibar schrieb:
This is exactly the problem:
Depending on the (un)loading method, temperature, and electrode design, lithium-ion batteries last about
>500 full cycles (with a definitional remaining capacity of about 70%). For partial cycles, the lifespan is correspondingly longer.
If you fully use this and run a daily storage system (charging from solar during the day, consuming at night),
the battery would be considered old after about 1.5 years without having driven even 1 km.
Replacement typically costs more than €10,000.
Everyone has to decide what is important to them.How does this compare to BYD and other home energy storage systems? Some promise 6000 or more charge cycles. Is that because of LiFePO4 chemistry and lower charging currents?