As a Northern European (Finland) I can tell you that the electricity cost here for last year was closer to 0,1 € per kWh including the transfer fee and taxes. Additionally, more than 40 % of houses here have electric heating. The heating season starts in early autumn and ends in late spring, lasting 8 to 9 months depending on the year. As the electricity used by the device is turned into heat, during the heating season running it costs nothing.
Yeah, northern scandinavia has plenty of renewable energy.
As for electric heating, that is true in 1:1 heating scenarios, but i assume you guys are also using heat pumps these days, and while you still get heat "for free", it will not be anywhere as efficient as your heat pump.
Yes, it's probably peanuts in the grand scheme of things, i know our air to water heat pump in Denmark uses around 4500-5500 kWh per year, so adding another 100 kWh probably won't mean much.