The cheapest places to mine are in Lebanon ($266 per 1BTC), Iran ($532), Syria ($1330).
For comparison, in Kazakhstan, for 1 BTC you will pay $12,900 for electricity.
And, in neighboring Kyrgyzstan, which in this ranking is in 7th place in terms of cheapness - $2660.
The most expensive places to mine are in Italy ($208,560), Austria ($184,352), Belgium ($172,381).
According to Coingecko