The main problem about bitcoin mineras is the electricity cost, when you do de math you will realiza how isn't a good business at all, you will end spending most of the profit in the electricity.
It is not a secret that bitcoin mining is costly in itself but there are things we can use to minimize the electricity costs and maximize the profit. One reason why electricity is running high if your equipment is old and not functioning as efficiently. Modern equipment can produce high hash rates for every watt of energy which can maximize work and minimize electricity costs. If you are still worried then you can check out other energy sources such as renewable ones. Solar panels have been very popular recently and many more people are starting to use it. Wind turbines are also used for renewable energy taking. There are many options if you are very keen on making profit out of mining.
