I switched from consumer energy to business energy.
Makes a difference of almost 400,- a year when mining with 2x A2Mini.
And the gas is a lot cheaper as well.
I worked out that A2 mini's is costing me somewhere in the region of £600 a year to run. For you to save 400 euros you you must be paying an absolute fortune in electric!
Yes, here in The Netherlands it is around 0,22 KW/h, mostly tax of course.
My calculation is not completely honest because I also have some servers running, but the largest part is from mining.
Now I have room to add some more miners, I still have some unused GAW Fury's laying around.
I bought these to empty my store credit at GAW.
When everything runs smoothly I will add a 3th A2Mini when the price comes down.