I have a much smaller setup than the author - a quarter the GPUs and RAM - and I was surprised to find it draws 300W at idle

The reason I asked is I used to run a dual X5650 server with SSDs and it was about $50/month with the cheapest (or very close to) rates in the US.

We have more expensive gas then usa, but i pay like a 5 cent per kwh @220V

Did not know how expensive it is in usa, especially California.

US generally has some of the cheapest electricity, about half of what Europeans pay. California has some areas that are abnormally expensive.

I pay 10 cents per KWH. Most of the electricity in my state is produced by hydropower.

Yep. ~$.33/kWh in Southern California (SoCal Edison) and going up all the time!

$0.51/KwH during peek hours in San Francisco!

Depends on where you live in the U.S. On the west coast, you’ll definitely pay 2x the national average. I live in the south-eastern part of the U.S and electricity is quite a bit cheaper at 12 cents/kwh. But even here it varies by region in my state of Georgia. Down the road where I have friends and family , they get power from a different provider. Their cost are much higher. But they also have flexible pricing. Such as at night they pay a fraction of their day time rates. From 17 cents to 3 cents. While I have a fixed rate 24/7. Which is cheaper than their day time rates.

This is a setup that might make more sense to run at full power during winter months.