Receipts, not promises.
Our estimate of the carbon footprint of the servers we run, with the working shown.
Our footprint
The estimate and its working.
We calculate it from the servers we run, a published grid figure and four assumptions of our own. We don't meter any of it.
Zurich · CH-DK-2
Our footprint
October 2026
Estimated
1,958g CO₂e
Receipt printed
Footprint receipt
October 2026
Electricity
- Servers in ZurichOur server list
- 7
- vCPUOur server list
- 21
- Hours31 days in October
- 744
- Power per vCPUOur assumption
- 0.5 W
- Overhead (PUE)Our assumption
- 1.2
- EnergyCalculated
- 9.374 kWh
- Swiss gridPower used in Switzerland, 2025 (VSE)
- 90 g CO₂e/kWh
- Subtotal
- 843 g
Making, shipping and disposing
- Per vCPU, over its lifeOur assumption
- 2.5 kg CO₂e
- Server lifeOur assumption
- 4 years
- This month's shareCalculated
- 744 of 35,040 h
- Subtotal
- 1,115 g
Total, estimated
1,958g CO₂e
- Period
- October 2026
- Method
- Our estimate
- Updated
- 23 Oct 2026, 21:47 UTC
CO2E 2026 10
Notes on the receipt
- Servers in Zurich
- Only our servers at Exoscale. The receipt leaves out the Bunny containers that serve this website.
- Power per vCPU
- We picked this number and the overhead under it rather than measuring them.
- Swiss grid
- This figure comes largely from imported power. In 2025, low reservoirs and a nuclear plant outage meant more imports, mostly from gas plants.
- Making, shipping and disposing
- 57% of the total. Making, shipping and disposing of the servers emits more carbon than running them.
What it counts
What the estimate covers.
Counted
- Compute: our Exoscale servers in Zurich
- All four lifecycle phases of our servers (modelled, not metered)
Not counted
- Bunny: the CDN, and the containers that serve this website, docs, help and status
- Object storage and backups (Exoscale, Infomaniak)
- Office electricity
- Employee travel
Where it runs
Where our servers are.
Our servers run on Exoscale in Zurich (CH-DK-2).
Zurich, Switzerland
This website is served by bunny.net from servers worldwide.
Worldwide
Commitments
What we don't do.
- We buy no carbon offsets.
- We plant no trees for publicity.
- We make no claim to be carbon neutral.