It's important to note there are extra charges on top of the electricity price that are counted per kwh. Here in Poland we have transmission charges that are almost the same amount as per kwh so the total variable cost is 2x per kwh cost. Looking at my last bill I pay 0.36€ per kwh in Poland despite the chart showing about 0.16€

I wonder if countries like NL listed as one of most expensive have all these charges on top too.

Thanks, I guess I read too much local doom news. I also underestimated that intel box from hetzner - it's actually twice as fast as the small AMD server but I guess the idea was clear.