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Cipher Mining Signs 10-Year Fluidstack Deal to Add 56 MW at Barber Lake, Securing $830 Million

Google lifts its lease backstop to $1.73 billion, bolstering financing for the expansion.

Overview

  • The agreement adds 56 MW at Barber Lake, delivers 39 MW of critical IT load, fills the site’s full 300 MW lease with Fluidstack, and contracts about $830 million over 10 years.
  • Two optional five-year extensions could lift revenue to about $2 billion for this expansion and roughly $9 billion across the broader partnership.
  • Google increased its support by $333 million to $1.73 billion to backstop Fluidstack’s obligations and facilitate project financing.
  • Cipher plans project-level debt plus about $118 million in equity to fund the build, guiding to 85–90% net operating income margins and $9–10 million per MW in costs.
  • Shares rose roughly 13% in early trading after Nvidia’s strong results and the new hosting agreement.