Bitcoin has created a vast mining sector within the network’s economy that is growing exponentially. Mining bitcoin has spread the technology towards new thoughts concerning energy consumption, ways to utilize bitcoin mining’s heat source, greener energy solutions and more.
https://news.bitcoin.com/bitcoin-mining ... t-greener/
The global bitcoin mining economy consumes nearly $500 million in electrical and operational costs. Moreover, it’s estimated the bitcoin network could use as much electricity as Denmark by the year 2020.
I have looked into this too and besides making coin from Mining, you can heat your office or house with the excess energy, super cool.
If you have clean energy available to you, this is definitely a smart choice.