Is Krystal green?

What we can show about Krystal's hosting, each piece with its source and the date we checked it.

Evidence checked 16 October 2026. Green Web Foundation directory checked 17 October 2026.

Green Web Foundation

Listed in the Green Web Foundation's directory of verified green providers, checked 17 October 2026.

GWF lists it as “Krystal” (provider 709).

GWF does not publish when a provider was last verified. Providers verified before October 2026 are reassessed under its new criteria, which no longer accept offsets, at their next reverification.

What GWF verification means, and its new criteria

Where its data centres are

Krystal's own servers in space it rents from data-centre operators in London, Amsterdam and the USA.

Each country's average grid carbon intensity, from Ember: the grid where the data centres are, not the provider's own supply.
Country	Grid average	Year
United Kingdom	218 gCO2e/kWh	2025
Netherlands	254 gCO2e/kWh	2025
United States	384 gCO2e/kWh	2025

We don't own data centres.

https://krystal.io/green Undated

Grid figures: Ember, Yearly electricity data (2026), CC BY 4.0.

Krystal's own evidence

Green

Krystal runs on power matched 100% with renewable energy.

https://krystal.io/green Undated

Covers: All of Krystal's data-centre sites.
Backed by: Matching. Krystal says that for every unit its data centres draw, an equivalent renewable unit goes into the grid; for some sites the operator's power purchase agreement is named.
Note: No basis is given for its main site or for one London site.

Climate Action Plan 2026–2029

Build a complete, GHG Protocol-aligned footprint with a qualified carbon accountant by FY2027.

https://krystal.io/files/green/climate-action-plan.pdf 2 July 2026

Covers: Plans and targets; no measured footprint yet.
Backed by: not stated

Technology

We're also entirely powered by renewable energy, no matter which one of our 4 global locations you use.

https://krystal.io/technology Undated

Covers: All locations.
Backed by: not stated
Note: Blunter than the "matched" wording on Krystal's green page.

Our reading

Krystal's own pages disagree on how many locations it has (three, four and six facilities are named on different pages).
Krystal is careful to say "matched" rather than "powered by"; its technology page is not.

Compared with

Our checker on its website

When the checker launches, this section will show its measurement of Krystal's own website: a fact about that one website, not about how its customers' sites are hosted.

Listing data from the Green Web Foundation's Green Web Dataset, made available under the Open Database License (ODbL).