Nordvar · In development

Compact data centres whose waste heat removes carbon from the air.

Computing on renewable power, its waste heat driving direct air capture, and the carbon dioxide stored permanently as rock. One compact site, designed as one system and built in phases: the data centre first, capture as its own permitted phase, alongside or after it depending on the financing of each phase. A first site is being evaluated in Iceland.

The system

One site, two outputs.

A data centre turns nearly all of its electricity into heat, and most data centres throw that heat away. A direct air capture plant needs heat to run. Nordvar puts the two on one site, with a heat pump bridging the temperature gap, so the heat from computing drives the removal of carbon from the air.

STEP 01ComputeSTEP 02Collect the heatSTEP 03Raise the temperatureSTEP 04Remove carbonSTEP 05Store it permanentlywarm water45–60 °C≈100 °CCO₂COOL WATER RETURNSSTEP 01ComputeSTEP 02Collect the heatSTEP 03Raise the temperatureSTEP 04Remove carbonSTEP 05Store it permanentlywarm water45–60 °C≈100 °CCO₂COOL WATER RETURNS

Where a local user exists, captured CO₂ can also be supplied as a feedstock; only stored tonnes count as removal.

See each step of the approach →

The physics

100%of the electricity a server draws leaves it again as heat; a server does no other work.
45–60 °Cwater off liquid-cooled racks - warm enough to be useful.
3×units of heat a heat pump can deliver, roughly, per unit of electricity it uses.
10,000years and more - the timescale on which geological storage is assessed.

Properties of the physics and of published results, not Nordvar performance claims.

Energy, in numbers →

Planned · decided site by site

Built into the land.

The building itself is planned to borrow its surfaces from the landscape it stands in: a roof of native moss, textured concrete the colour and grain of basalt, paths of black sand.

A roof of native moss
Concrete that behaves like basalt
Paths of black sand

How it sits in the land →

Where

The right place already exists.

A site like this needs four things at once, and they rarely coincide. Iceland has all four - and has hosted operating direct air capture with mineral storage since 2021.

Renewable, firm power
Computing runs around the clock. So must the electricity behind it, without emissions.
A cold climate
Cooling costs less, and the temperature difference the heat pump has to bridge is smaller.
Geological storage nearby
Captured carbon dioxide should travel a short distance to rock that can hold it.
A stable legal framework
Long-lived infrastructure needs predictable permitting, land tenure and certification.

Why Iceland →

If this fits how you think about computing, write to us.

Contact →