OK,
So what's the limit of a system you could run from your own house (or apartment)?
A single standard outlet yields 1500-1800 watts but there are higher voltage/amperage outlets in many houses.
So what's the limit of a system you could run from your own house (or apartment)?
A single standard outlet yields 1500-1800 watts but there are higher voltage/amperage outlets in many houses.
Most houses would be able to upgrade to 35A without extensive reworking of cables, getting to a 24kW maximum.
Also 50A and 63A are available for consumers in most locations, but would require re-evaluating the cabling coming to the house.
I'm guessing it would be the same in Slovenia.
[1]: https://lists.debian.org/debian-ai/2023/12/msg00031.html
The only limit to household wiring would be the capacity of the distribution coming into your home.
A few years later I got to know the person whose house it was installed in. And when the homeowner was talking about it he complained that the plumber didn’t install a big enough one and he had to have it redone.
On the other hand, tankless electrics often cause a service upgrade unless planned for new construction. Great for us electricians, less great for the homeowner.
Our all-electric home's max instantaneous draw over the last a couple months peaked around 44 kW.
In retrospect, it's insane to get an electric tankless hot water heater from a climate perspective. Gas tankless makes infinitely more sense if you need limitless hot water. If you don't need limitless, heat pump would be the most emissions efficient.
I'll try to get my usage data together and update this comment.
Edit: Cost of usage electric and gas over the last five years. The big spike last winter was due to our remodel and heating the whole house while it was neither sealed nor insulated in the middle of winter with just the 10kWh furnace backup heater which ran almost non-stop. Units are USD. The two gaps in data are due to meter replacements, I think. https://imgur.com/AVTFwpP
It's kind of hard to compare the data since we re-insulated, went from gas furance to heat pump, and added a hot tub.
Assuming you are in Europe, and you have 2.5mm² cabling (which is the standard for residential applications) then you are indeed limited to 16A per group.
However, there is nothing preventing you from using multiple groups for one appliance. This is actually typical for high-power appliances, such as induction cooking.
Ultimately it is your main fuse that limits your total power consumption, which for most European countries this is typically rated at 25A (5750W), but on request you can usually have this raised to 35A, 50A or even 80A, if supply is sufficient.
If you want to stay with your normal residential circuit, in the US they're commonly 100 or 150A. 200A isn't uncommon, but you might have to pay for an upgrade.
That leaves you with 200A*240V=480kW minus whatever you need for normal house things.
So probably more compute than you have physical space for.
You’re off by an order of magnitude: 200 * 240 = 48000
> If you're willing to pay, you can probably convince your utility to hook you up to three phase power, which is typically reserved for industrial use.
Three-phase power isn’t only for industrial use, (in the United States) small commercial buildings will have a 208v three-phase service drop and larger commercial buildings will have a 480v service drop, or 13.8kV medium voltage drop if it’s big enough. Large enough industrial customers will have dedicated substations.
Also, in Europe 3 phase power afair is fairly common.
Any circuit breaker will not trip at the rated current, though. They're designed not to. So, you can run all 48kW indefinitely without tripping a circuit breaker, assuming everything else is sized appropriately (i.e., wire, interconnects, etc).