[Fokamul]

How is this handled in your country? We're talking only about solar panels which plugs directly into your main.

Because here, small country in EU, this is not allowed since it would mean ridiculous investment into electric infrastructure.

It's heavily regulated and you need special electric meter, license, etc. and still price of electricity is negative in certain times during the day, because everyone who could, got their solar power plant from EU subsidies.

[bildung]

In Germany there was zero investment into the electric infrastructure, but the power allowed to flow from the panels into the grid is currently limited to 800W for this type of system. Seems to work fine. Larger systems still need a license.

[Hamuko]

Seems like they're illegal as hell in Finland.

https://tukes.fi/-/ala-kayta-pistorasiaan-kytkettavaa-aurink...

If you want solar panels without having to get an electrician, you'd need to connect them to a battery that's not connected to the mains.