**Sustainability is part of how WrkLst is built. We use energy-efficient infrastructure and keep optimising our systems to reduce their environmental impact.**

## 100% renewable energy

Our data centres run on renewable energy, including hydropower at the Finnish facility. Every request to WrkLst is powered by clean energy.

## Energy-efficient facilities

The data centres we use are designed for high energy efficiency, with low PUE (Power Usage Effectiveness) ratings that minimise waste.

## Concentrated, efficient infrastructure

We run a small number of highly efficient European data centres rather than duplicating infrastructure across many regions around the world, which keeps the total energy footprint of the service low. See [How and Where is WrkLst Hosted?](/hc/wrklst-docs/articles/1767343809-how-and-where-is-wrk_lst-hosted).

## Continuous optimisation

We regularly review and improve our infrastructure to reduce our energy footprint further.

At WrkLst, security, speed and sustainability go hand in hand.

## Related articles

* [How and Where is WrkLst Hosted?](/hc/wrklst-docs/articles/1767343809-how-and-where-is-wrk_lst-hosted)
* [Is WrkLst secure?](/hc/wrklst-docs/articles/1767343770-is-wrk_lst-secure)