On the shores of Seneca Lake in upstate New York, a private equity company has bought a decommissioned coal power plant and converted it to burn natural gas. It then switched it back on to become what it describes as a “power plant-cryptocurrency mining hybrid”.

Greenidge Generation Holdings, the company behind the plant, plans to go public later this year, saying it expects to become “the only US publicly listed bitcoin mining operation with its own power source”.

In a presentation to investors, it says its direct line in to the Empire Pipeline system for gas allows it to produce coins for just $3,000 a pop — a hefty margin considering that even after a heavy recent drop on a possible crackdown from Chinese regulators, they sell for about $40,000.