Elizabeth Rembert / Bloomberg:

Square partners with Blockstream, says it will invest $5M to build a solar-powered Bitcoin mining facility at a Blockstream Mining site in the US  —  Square Inc. will invest $5 million to build a solar-powered Bitcoin mining facility at a Blockstream Mining site in the U.S. through a partnership with the blockchain technology provider.

http://www.techmeme.com/210605/p9#a210605p9