[sorenjan]

How is it produced though? I'm guessing in large parts by fossil fuel.

[smsm42]

This one most likely: https://en.wikipedia.org/wiki/Irkutsk_Hydroelectric_Power_St...

Siberia has huge rivers which are very suitable for building hydroelectric because the accompanying flooding happens in mostly uninhabited areas and thus has relatively little costs.

[scarlac]

In the video they interview the guy who lives next to a hydro plant, so pretty green energy.