Microsoft ↔ Deep Sky

Microsoft: a firm purchase of 10,000 t of direct air capture removal from Deep Sky.

BuyerMicrosoft

SupplierDeep Sky

Tonnes10,000 t

Capture pathwayDirect air capture

Storage mediumgeological

Commitment typefirm

Deal structureofftake

Source pathway descriptionDirect air capture (DAC) from eight DAC projects in Canada, aggregating removal credits from multiple DAC technology providers including NEG8 and Mission Zero

Storage descriptionCarbon transport and storage managed by Deep Sky

Delivery windowStarting 2025; initial 10,000 tons with access to up to one million additional tons

Project locationCanada

NotesDeep Sky is a project developer that aggregates multiple DAC technologies rather than developing its own. Microsoft receives aggregate credits from Deep Sky rather than individual credits from the eight DAC companies. The deal includes a unique clause providing Microsoft access to Deep Sky's lab data on capture unit performance, time of capture, storage timing, and technology performance character

Durability defaultedtrue

Previous durabilitydurable-1000y

Previous durability basispathway-default

Durability notePathway default removed; duration requires source evidence

automatically extracted from the cited source; not yet reviewed by a person · discovered via carbon-removal-updates · extracted 2026-08-24

Watch these companies, see every deal like this, or ask about it.

A free account searches the whole database and saves records. Pro adds Ask, a watch list, totals, exports and the plugin for Claude and ChatGPT. New accounts get 14 days of Pro, no card needed.

Create a free account Sign in

More: Deep Sky · Direct air capture