ᐅ Electric Vehicle – Bidirectional Charging: The Next-Generation Battery Storage
Created on: 19 Dec 2021 23:09
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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…
Battery degradation is hardly a concern when leasing. Besides, manufacturers usually offer several years of warranty on battery performance.
I also find this topic very, very interesting. However, there isn’t much information available online yet.
Regarding the wall charger, I will ask my electrician about it in January…
I also find this topic very, very interesting. However, there isn’t much information available online yet.
Regarding the wall charger, I will ask my electrician about it in January…
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Benutzer20020 Dec 2021 21:15DaSch17 schrieb:
If that really works reliably, in my opinion it would be another milestone towards even greater self-sufficiency! Milestone? Various (Japanese) models have been offering that for nearly 10 years. Just not with a CCS connector.
So the Nissan Leaf has supported bidirectional charging for a while now. VW will introduce it from January. The Hyundai Ioniq already has it as well.
In Germany, it’s not really a relevant topic yet. It’s more common in Asia. Here, the regulations still need to be clarified. It can’t be that employees charge their car completely for free at work and then use the electricity they brought home to run their washing machine at night.
Fundamentally, it’s more about stabilizing the power grid. However, this is something to always keep in mind. Electricity is not just available from the grid without limits. And the situation looks rather bad in Germany. Three large nuclear power plants will be shut down by the end of the year.
In addition, eight coal power plants will be closed. Gas is expensive and increasingly difficult to obtain.
So we get the needed electricity from neighboring countries like France. Great. Except that they recently shut down three major nuclear plants because of technical problems.
And as you can clearly see here, most homeowners are using heat pumps. And especially during the cold winter months, without photovoltaic output — surprise, surprise — these run on electricity as well.
How all of this is supposed to work now is a mystery to me.
From my perspective, bidirectional charging makes technical sense. You can save yourself the cost of a stationary battery storage system for photovoltaic power and just use the car instead. Charge the car during the day with solar power, then use the electricity at night. Why not?
Technological progress is accelerating all the time, and every year there are new innovations. An electric car is outdated after just 3 to 4 years.
In Germany, it’s not really a relevant topic yet. It’s more common in Asia. Here, the regulations still need to be clarified. It can’t be that employees charge their car completely for free at work and then use the electricity they brought home to run their washing machine at night.
Fundamentally, it’s more about stabilizing the power grid. However, this is something to always keep in mind. Electricity is not just available from the grid without limits. And the situation looks rather bad in Germany. Three large nuclear power plants will be shut down by the end of the year.
In addition, eight coal power plants will be closed. Gas is expensive and increasingly difficult to obtain.
So we get the needed electricity from neighboring countries like France. Great. Except that they recently shut down three major nuclear plants because of technical problems.
And as you can clearly see here, most homeowners are using heat pumps. And especially during the cold winter months, without photovoltaic output — surprise, surprise — these run on electricity as well.
How all of this is supposed to work now is a mystery to me.
From my perspective, bidirectional charging makes technical sense. You can save yourself the cost of a stationary battery storage system for photovoltaic power and just use the car instead. Charge the car during the day with solar power, then use the electricity at night. Why not?
Technological progress is accelerating all the time, and every year there are new innovations. An electric car is outdated after just 3 to 4 years.
DaSch17 schrieb:
Besides, the manufacturer offers several years of warranty on battery performance…But then be sure to read the fine print carefully to see how bidirectional charging may affect these warranties.
Durran schrieb:
Technological progress is accelerating, and there are innovations every year. An electric car becomes outdated after 3 to 4 years.It’s somewhat disturbing when you really think about it. And these cars are supposed to be especially environmentally friendly?
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RotorMotor21 Dec 2021 12:54I already find the current situation with company cars and their subsidies quite problematic.
It gets even worse when everyone starts charging them at work to then use that energy at home for showering, heating, and cooking. This results in about a 30% loss just to save a few cents or to benefit from the employer’s contribution...
Overall, it doesn’t seem reasonable to me to wear out a valuable car battery on the house’s energy needs.
It gets even worse when everyone starts charging them at work to then use that energy at home for showering, heating, and cooking. This results in about a 30% loss just to save a few cents or to benefit from the employer’s contribution...
Overall, it doesn’t seem reasonable to me to wear out a valuable car battery on the house’s energy needs.
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