RE:Riot, Bitfarms and Cryptostar all in the same article !!! thanks for posting the link Gigi06.
CryptoStar, a cryptocurrency miner with data centers in the U.S. and Canada which hopes to become one of the lowest cost hosting and cryptocurrency producers in North America, reached a low-priced electric power supply agreement in mid-2020 with an Alberta, Canada-based private energy company. Under the accord, CryptoStar will purchase power, in increments of 10 megawatts (Mw), produced by on-site gas turbines that the private energy company will build in Alberta at among the lowest electricity rates in North America (likely below US$0.03 per Kwh). The company initially plans to purchase 30 Mw, and over the next 12 months this amount could reach 120 Mw.