Sometimes high and low tech ideas feel like they were made for each other. That’s what Lawry Trevor-Deutsch found when he combined an old, mechanical cooling system with a cryptocurrency mining facility. The result is the Blockchain Domes Heat Station which he operates for United American Corp near Montreal, Canada.
The key technology is a Victorian one, Lawry says. The Canadian well is a ventilation system that draws air through underground pipes, from which it emerges into a building at a constant temperature—crucially, much cooler in summer than the air temperature in Canada. The Blockchain Dome contains thousands of mining computers which need to be kept cool. So as the air from the underground pipes emerges beneath them, it heats up and therefore rises.
And here’s the second clever part of the system: the air heated by the computers is piped through greenhouses, providing the plants with warmth in Winter and cooler than outside air in summer. And because the air is flowing and dry, it prevents mold and deters pests.
So the Domes business has two sources of revenue: renting out its computers to crypto miners; and renting out its greenhouses to farmers. It pays nothing for the cooling that the computers need; and the warmth that the computers generate and send into the greenhouses has also been paid for in the electricity charges to power the miners.
“It really is a win-win situation,” Lawry says, “and at the same time we’re creating a much better environment socially and for sustainability. It’s creating jobs and it’s reducing the carbon footprint.”
Even the power the Domes use is environmentally-friendly because it’s hydro in Quebec. “Certainly, it’s a greener way to mine” at a time when “a lot of the criticism of blockchain in general has been over its power consumption.”
Currently, there are 6,000 miners at work and Lawry is considering two new properties which he hopes will be launched within the next year. And the company is…