Register of sites

The Environment Department of the Velocity Interoperability Network keeps the register of the physical sites of the Velocity Interoperability Network. A physical site is any building or room in which a member organisation houses equipment connected to the Network. Every such site must be entered on the register before its first energy report, and the resilience standards set out under Sites are assessed against the entry.

The register opened on 6 September 2026 with twelve entries transferred from the records that member organisations kept before the Department was established. Each organisation has been asked to confirm its entries and to submit a self-assessment by 31 October 2026. Assessments by the Department begin in the fourth quarter of 2026 with the sites whose self-assessments have already been received.

The published register shows the code, name and class of each site, the date of registration, the assessment status and the quarter of the next assessment. The equipment housed at a site and the supplies serving it are held by the Department but are not published.

What the register records

Site code and name

A code assigned by the Department when the site is registered, and the name by which the member organisation refers to the site. The code is quoted in every report and incident notification concerning the site.

Class of site

One of four classes: data hall, exchange, transmission site, or office with equipment room. The class determines the reading interval of any monitoring station at the site and the frequency of standby supply tests.

Equipment and supplies

The equipment connected to the Network that the site houses, described by type and installed capacity, and the electricity supplies, standby generation and cooling plant serving it. This part of the entry is not published.

Assessment status

Whether the site's self-assessment has been received, whether the Department has assessed the site, how many of the four resilience standards are met, and the date by which any unmet standard must be complied with.

Next assessment

The quarter in which the site is next due to be assessed. Sites are reassessed at intervals of no more than three years, or sooner if their equipment or supplies change.

The register. The entries below are current as of 6 September 2026. The register is updated as entries are confirmed, self-assessments received and assessments completed.

Classes of site. The class of a site determines how often its standby supply is tested and, where a monitoring station is installed, how often readings are taken. The classes and the number of registered sites in each are shown below.

Adding a site to the register

1. 1

   Step 1: Check whether the site is already registered

   Check the register above for the site. If the site is listed, confirm the entry rather than registering it again; if the class or name is wrong, follow the procedure for amending an entry.

2. 2

   Step 2: Gather the particulars

   Record the name of the site, its class, the equipment connected to the Network that it houses, and the electricity supplies, standby generation and cooling plant serving it.

3. 3

   Step 3: Complete the self-assessment

   Record how the site meets each of the four resilience standards for power, cooling, flood and fire, or state which standards it does not yet meet and the date by which it is expected to comply.

4. 4

   Step 4: Send the registration to the Department

   Send the particulars and the self-assessment in a single message. The Department acknowledges the registration within five working days and assigns a site code.

5. 5

   Step 5: Receive the entry and the assessment date

   The Department enters the site on the register and gives the quarter in which it will be assessed. The site's first energy report is due for the quarter in which it was registered.

Amending an entry

1. 1

   Step 1: Notify the change

   Write to the Department quoting the site code and stating what has changed: the name, the class, the equipment housed, the supplies serving the site, or that the site has closed.

2. 2

   Step 2: Provide a revised self-assessment where required

   A change to equipment, supplies or cooling plant requires a revised self-assessment against the affected standards. A change of name alone does not.

3. 3

   Step 3: The entry is updated

   The Department updates the entry within ten working days and, where equipment or supplies have changed, brings forward the site's next assessment. A closed site is marked as such and remains on the register for three years.

Registrations, confirmations and amendments are sent to contact@environment.gov.vin, quoting the site code where one has been assigned. Monitoring stations installed at registered sites are listed under Emissions and monitoring; the reporting calendar is under How to report; and an event affecting a registered site is reported under Incidents.