Virtual currencies, such as Bitcoin are the greatest Ponzi scheme ever invented, my interest is the amount of "electrical energy" it will take to generate proof-of-work algorithms and to run the new sets of transactions (blocks) that are added to Bitcoin’s blockchain roughly every 10 minutes by so-called miners. On average, Antminer S9s actually draw about 1,500 watts. Most miners run these systems 24 hours per day — so the equation is simple: 1,500 x 24 = 36,000 watt hours, or 36kWh. In a 30-day month, these systems will draw about 1,080 kWh. During the summer, however, depending on the climate in which you live, it can actually cost 50–100% or more in additional power to cool the heat exhausted by these miners. That could add another $65 - $130/month (or more if you have higher power rates) to your electric bill. I'll Put my money in large power who generate solar kWh and mark it up 1000% and charge a monthly connection fee and pay a 4% dividend.