
The building blocks of our power solution are based around the live-broadcast industry. Our facility was originally built from scratch to be capable of maintaining a live broadcast via it's dish farm even if the entire surrounding area has lost power. To facilitate that, we have twin, diverse grid feed supplies from EDF Energy - switchable on-site by our electrical team.
Our grid supplies are also diverse themselves, as each one can be switched upstream by EDF between two additional supply routes. These supplies power our three individual on-site 11kV transformers, and from there we have the option of combining the outputs of two of the transformers in order to cover for the failure of a transformer itself.
A Rolls-Royce generator set is then on constant standby so that in the unlikely event of a grid-supply power cut our changeover equipment will switch to it automatically. On-load generator tests are performed weekly, and controlled power failures are simulated once per month.
Finally, we have additional terminal sets on the external walls which are pre-wired to give us the flexibility to attached 3rd party generating sets.
All the above then supplies our highly resilient N+1 (and 2N+1) DPA9000 UPS chassis, which in turn feed isolated A and B feeds.
We even power our air-handling units from our UPS systems via digital inverters in order to ensure that there is no interruption to cooling while the generators start.