what do you mean ? 13 eurocents, comes to around 15 dollarcents per kwh. is that expensive for US standards ?
no it is meh
I will use usa cents
under 5 very good
5 to 10 mostly of the time good
10 to 15 you enter some zone risky
15 to 20 more risk
over 20 cents pretty high risk
over 30 cents do not mine almost always bad.
My home is 13 usa cents in the winter make it 10-11 cents due to heating savings
my home is 16 usa cent in the summer make it 18 cent due to warm house in the summer.
I made good money from July 2020 to Sept 2021 with those prices.
But understand July 2020 eth to Sept 2021 eth has been very good very very very good.
I also have access to dirt cheap power so I can move all my in house gear there if market crashes.
If you run 3 cards doing 300 mh =
18 usd a day burns 20 kwatts or 3.50 usd a day you are up 14.50 usd a day.
but the gear could drop to earning 6 or even 3 a day and you are burning 3.50 usd a day.
I consider you to be okay not terrible not good ok to get the cards if the price is close to retail.