View original ↗on heirloomcarbon.com
deal · 1 September 2023
Microsoft ↔ Heirloom
Microsoft: a firm purchase of 315,000 t of direct air capture removal from Heirloom.
BuyerMicrosoft
SupplierHeirloom
Tonnes315,000 t
Capture pathwayDirect air capture
Storage mediumgeological
Commitment typefirm
Deal structureofftake
Source pathway descriptionDirect Air Capture using limestone-based technology; CO2 captured from air and permanently stored in concrete through partnership with CarbonCure Technologies or stored underground
Storage descriptionPermanently sequestered in concrete or stored underground
Delivery window10+ years
Project locationTracy, California, United States
NotesMicrosoft is one of four early catalytic buyers mentioned (Microsoft, Stripe, Shopify, Klarna). The deal was announced in September 2023 and is described as 'one of the largest CO2 removal deals to date'. Tracy facility has capture capacity of up to 1,000 tons CO2 per year and is powered by renewable energy supplied by Ava Community Energy.
Durability defaultedtrue
Previous durabilitydurable-1000y
Previous durability basispathway-default
Durability notePathway default removed; duration requires source evidence
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More: Heirloom · Direct air capture