Answers would really different since in each places it do have different rate or cost of energy just in my place we do have 0.4 usd/kwh which i do really say its expensive to mine and i wont really see that i would be profitable on having this kind of energy rate. I have experienced on doing mining but i eventually stop when i do see my first 2 month results feels like im just doing for nothing and in more worst case im spending much money than on earning.