I am wondering which countries in the world have the cheapest electricity, and would thus be ideal for mining bitcoins.
I am from Australia, and I can tell you that we have some of the most overpriced electricity in the world, meaning I will probably need to go overseas if i want to mine competitively.
What about solar panel? Did you think about it? Yes, you have to invest some money to do that but think about income and how much you will cut on bills doing this.