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.
You have to think hard about investing in solar panels, which, of course, requires investment in the very beginning of the money, but it can quickly return.