ᐅ Using a Tesla Battery as a Home Energy Storage System?

Created on: 24 Dec 2024 15:10
P
Pianist
Good day!

I am generally very satisfied with my car, but I can no longer justify continuing to drive a Tesla. So here is my thought: instead of selling a four-year-old Model 3 with around 150,000 km (93,000 miles), one could theoretically remove the battery, install it in a weatherproof enclosure, and then use it as a home energy storage system behind the garage. The garage, which is about 70 square meters (750 square feet), could be equipped with photovoltaic panels.

Does anyone know how much a new 55 kWh battery storage system would cost? That would get you pretty far, right? Is there anything else to consider?

Thanks in advance, Matthias!
N
nordanney
24 Dec 2024 16:06
Pianist schrieb:

In my opinion, every Tesla automatically advertises Musk.
LOL. Nobody advertises for such outdated cars nowadays. Tesla hasn’t made any real progress for years, which is also evident in their sales figures.
Nobody turns their head for Tesla anymore. There are clearly more modern, better, and above all better-built cars available.
And not every XPENG, BYD, Polestar, etc. driver is promoting the great Chinese brands with their model democratic values.
P
Pianist
24 Dec 2024 16:11
But the charging network is simply the best, and I am constantly traveling across Germany for work. Therefore, switching would not be easy for me. However, you also have a conscience and a sense of political awareness...
N
nordanney
24 Dec 2024 16:32
Pianist schrieb:

But the charging network is simply the best, and I am constantly working all over Germany. So switching would definitely not be easy for me.

Nonsense. We now have so many fast chargers that you can easily charge anywhere and anytime.
Tesla has "only" about 190 Supercharger stations, and almost all of them are also available for non-Tesla vehicles. Where is the problem? Otherwise, use one of the well over 33,000 fast charging points that do not belong to Tesla.
P
Pianist
24 Dec 2024 16:48
But then you have to commit to a larger provider in order to get reasonably good prices. I also use the EnBW card occasionally, but only in exceptional cases, since it’s far too expensive to use frequently. And having just four charging points is not enough; there need to be quite a few more to avoid waiting times in addition to the charging time. Furthermore, the car and the charging network need to work closely together, especially for preheating and similar functions. Does anyone other than Tesla offer this?
N
nordanney
24 Dec 2024 17:12
Pianist schrieb:

Also, the car and the charging network need to work closely together, especially for preheating and so on. Does anyone besides Tesla offer this?

What? Are there cars that don’t do this? Either preconditioning is done as part of the charging schedule to match arrival at the station, or (like with VW) you trigger it manually (for example, not possible with Audi – I checked out the new A6 Avant E-Tron as an alternative to the ID7).
Pianist schrieb:

But then you have to commit to a larger provider to get reasonably good prices.

Yes, Tesla is somewhat cheaper for Tesla users. But what stops you from using cards from two or three different providers?

P.S. Tesla chargers are no longer an option for me and many other users because they are designed only for the 400V architecture. With 800V cars, you get about 100 kW charging power instead of up to three times that on third-party chargers. That just makes charging too slow for me (e.g., with the A6).
Tolentino25 Dec 2024 21:19
May I ask what the cost per kWh at Superchargers is for Tesla users today?