View original ↗on arnoldporter.com
deal · 8 September 2025
Microsoft ↔ Vaulted Deep
Microsoft: a firm purchase of 4,900,000 t of pumpable biomass to geological storage (bio-oil, slurry) removal from Vaulted Deep.
BuyerMicrosoft
SupplierVaulted Deep (stated as Vaulted)
Tonnes4,900,000 t
Capture pathwayPumpable biomass to geological storage (bio-oil, slurry)
Storage mediumgeological
Commitment typefirm
Deal structureofftake
Source pathway descriptionwaste management company leveraging new technology for sequestration of organic waste, avoiding disposal in landfills or other environmental contamination
Delivery window12 years
Project locationUnited States
NotesLong-term carbon reduction unit offtake agreement. Vaulted Deep is the full legal entity name. Deal described as one of the largest carbon removal transactions ever signed. Development of new carbon sequestration facilities across the United States.
Durability defaultedtrue
Pathway noterecoded from other-emerging on 2026-09-01, the source describes injection of organic waste into deep geological formations, the taxonomy names Vaulted Deep as the first tenant of biomass-injection
Previous durabilitydurable-1000y
Previous durability basispathway-default
Durability notePathway default removed; duration requires source evidence
Also reported by isometric.com ↗
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