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

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!

If you're concerned about Musk: You supported him when you bought your car. You can't undo that. What will you do with the vehicle? I would drive it until it’s no longer usable, then see how to recycle the battery and buy new from better people… any sarcasm detected…

Pianist schrieb:

Does anyone know what a new 55 kWh battery storage system would cost?

No idea. But whoever takes your car will say: "I need $15,000 to $20,000 for a new battery." So, at best, you might get some money for them to "buy" your car.
There are conversions described online. Around $10,000, because you also need a different voltage, etc.

And lastly: you can only operate the battery as an off-grid system. Due to lack of certification (missing CE marking), connecting it to the grid is, to my knowledge, prohibited. Tesla also lacks the battery management system. For temperatures below 9°C (48°F), you probably also need a battery heater, otherwise the battery won’t accept any charge.

So yes, you can use it. But no, it’s not practical. And if it is for you, it involves a lot of technical effort. Are you an IT/power enthusiast?

Ok, it was just an idea... I already suspected that it wouldn’t make much sense. At least I will put a label on the back to indicate that I couldn’t have anticipated any of this in 2020...

Pianist schrieb:

But I just can no longer justify continuing to drive a Tesla.

Why?

Pianist schrieb:

At least I'll put a label on the back saying that I couldn't have known any of this back in 2020...

What’s your issue?

Sell the car, buy another one, and approach the topic of photovoltaics separately.

nordanney schrieb:

Why?

In my opinion, every Tesla automatically promotes Musk.