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Comment by pitaj | Hacker News Reader

So what? For high-power charging, DC is better anyways. For low-power charging, having extra phases is useless.

In europe the connections are a lot lower amperage, around here for example 35 ampere per phase. But having 3 phases is pretty normal and the standard in any new house, which means 3 phases can let you charge at 22kW with a few Ampere left, while with 1 phase you can only charge at 7 KW.

That does make it useful to charge it in a few hours in the afternoon, instead of having to wiat the night.

In which European country is triphasic power for houses becoming normal?

In Denmark, the only places without triphase power are some very old apartments in inner Copenhagen. To be fair, some of those apartments predate US independence by a hundred years. Those buildings do have triphasic power, but had a silly scheme where each apartment got two random phases.

All houses have triphasic power (usually 35A per phase, sometimes 63A), and all apartment buildings with electrics from the last 2-3 decades provide triphasic power to each apartment as well.

Our ovens and cooktops expect triphasic power, with a two-phase downgraded configuration for backup.

Same for Sweden I believe.

In the Netherlands pretty much every house has it. Even if it's not connected yet the lines will have been buried already.

Where I am (Eastern Europe) the cost difference is insignificant. There is no reason to not get triphasic for new detached/semi-detached houses.

apartment blocks always do

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