[mendigou]

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

[arghwhat]

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.

[apexalpha]

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

[ffgjgf1]

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

[ClumsyPilot]

apartment blocks always do