---
title: "GPU Data Centre in Estonia: Tallinn DC-1"
description: "Today our racks are at Greenergy's Tallinn DC-1 in Estonia. Up to 21 kW per rack in the standard hall, air-cooled, on our own network."
canonical_url: "https://3nv.io/data-centres"
meta:
"og:description": "Today our racks are at Greenergy's Tallinn DC-1 in Estonia. Up to 21 kW per rack in the standard hall, air-cooled, on our own network."
"og:image": "https://3nv.io/_og/s/o_820c97f60cfff7a1.jpeg"
"og:image:alt": "Greenergy's Tallinn DC-1 from the air, at golden hour"
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"og:title": "Where your servers run."
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"twitter:image:alt": "Greenergy's Tallinn DC-1 from the air, at golden hour"
---
> Index of every page on this site: [llms.txt](https://3nv.io/llms.txt)
# Where your servers run.
One contract, one team, our own network. Today our racks are at Greenergy's Tallinn DC-1, on the western edge of Tallinn.
- **Site today**
- Tallinn DC-1
- **Rack power, standard hall**
- Up to 21 kW
- **Cooling**
- Air
- **On site, Greenergy**
- 24/7
- **Jurisdiction**
- Estonia, EU
## **The building**
- **Opened**
- 2022, next to Elering's Harku 330 kV substation.
- **Size**
- Three storeys, about 14 500 m².
- **Owner**
- Greenergy's first building. Greenergy owns and operates it.
- **Our space**
- We rent space and power in its standard hall.
## **EN 50600, and what it covers**
- **Certificate**
- EN 50600 for Greenergy's Tallinn DC-1, by TÜV NORD, Availability Class 3.
- **Status**
- We share the certificate on request.
- **What it covers**
- The building's design and operation, not 3NV's information security.
## **Power and cooling**
As Greenergy reports.
- **Feeds**
- Two utility feeds, with separate A and B power paths.
- **UPS**
- Each power path has its own UPS room.
- **Generators**
- Diesel generators on site.
- **Racks**
- Up to 21 kW per rack in the standard hall, on 32 A PDUs, air-cooled.
- **Tailored**
- Tailored deployments take higher densities, other PDU setups and liquid cooling, by assessment with Greenergy.
- **Renewable**
- Greenergy states its electricity supply is 100% renewable; its documentation is available on request.
## **Getting into the hall**
Run by Greenergy.
- **Access**
- Layered access control with biometric checks. Your team gets in under a three-party access agreement between you, us and Greenergy.
- **On site**
- CCTV and staff on site around the clock.
- **Fire**
- Fire prevention uses oxygen reduction.
- **Procedures**
- We share the detailed procedures under NDA.
## **Our own network**
- **Network**
- Our network is AS214132, registered to 3NV with RIPE NCC.
- **Your connection**
- Your node will connect to our edge, with IP transit and peering at the Tallinn internet exchange.
- **Cross-connects**
- To other carriers in the building, on request.
- **Latency**
- We'll publish figures once we've measured them on this network, with the date and method.
## **Who works on the hardware**
- **Greenergy**
- Its on-site team does hands-on work at any hour, at our request.
- **3NV**
- We handle the hardware itself: diagnosis, spares and replacement.
## See it before you sign.
We arrange escorted visits to Tallinn DC-1 with Greenergy for teams planning a deployment. Bring photo ID; we register you in advance.
[**Book a site visit**](https://3nv.io/#plan)
## Sitemap
See the full [sitemap](https://3nv.io/sitemap.md) for all pages.