FluidStack introduces Solus Arcs project; supervisors approve estoppel for Progress Park parcel

Jun 10, 2026

FluidStack representative Kate Franco presented the Solus Arcs data-center project, described closed-loop cooling and said the company will post project websites. After staff review of Progress Park covenants, the board approved an estoppel statement finding the project in compliance and requiring a site plan for further approvals.

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Kate Franco, introduced by Supervisor Breyer as a FluidStack representative, described how hyperscale data centers operate and said FluidStack recently closed on the Progress Park parcel that had been marketed as the Solus Arcs project. Franco told the board a closed-loop cooling system ‘‘uses approximately the same water as seven average homes’’ for daily operations and repeatedly emphasized the company’s intent to comply with permits, audits and local covenants.

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