Power infrastructure

Resilient power.Responsible energy.

N+1 UPS, dual A+B rack feeds and on-site generator backup — all powered by 100% renewable energy at our privately owned Cambridge data centre.

N+1 UPSA+B feeds100% renewable99.99% SLA
Solar panels and wind turbines — Fast2host 100% renewable data centre energy
Carbon Trust REGOsSmartestEnergy supply

0%

Renewable energy supply

96.5%

UPS operating efficiency

99.99%

Power uptime SLA

0%

CO₂ reduction with HVO fuel

Redundancy

Engineered for zero unplanned downtime

Every layer of our power chain is redundant. Dual utility paths feed N+1 parallel UPS systems, which distribute independent A+B feeds to each rack. An automatic JCB Stage V generator sustains operations through extended grid outages.

  • N+1 Riello Multi Sentry UPS — 96.5% online efficiency
  • Dual A+B feeds from separate distribution boards
  • Automatic diesel generator with 7-day on-site fuel
  • 100% power SLA with 24/7 monitoring and alerting
Full rack colocation

Power path

Cambridge DC · N+1 redundant

Live

Utility grid

Primary

Riello Multi Sentry

Online

A+B rack feeds

100% SLA

Your infrastructure

Protected

JCB Stage V generator

Auto-start · 7-day fuel · HVO capable

Standby

UPS mode

N+1

Efficiency

96.5%

SLA

99.99%

Utility → UPS → A+B feeds → your rack. Generator on standby for extended outages.

Infrastructure

Mission-critical power delivery

From single-server colocation to high-density full racks — the same resilient power architecture protects every deployment.

N+1 parallel UPS

Dual Riello Multi Sentry UPS systems in an N+1 configuration — if one unit fails, the other takes over without interruption.

Dual A+B rack feeds

Independent power paths from separate distribution boards to every cabinet, supporting dual-PSU servers and switches.

JCB Stage V generator

Automatic diesel backup with seven days of on-site fuel. HVO bio-diesel capable — up to 90% lower CO₂ emissions.

24/7 monitoring

Continuous power monitoring with automated alerts and on-site engineers — plus optional per-rack usage reporting.

Sustainability

Protecting the planet without compromising uptime

Energy is one of the largest costs in any data centre. We combine 100% renewable electricity with efficient cooling, UPS and server platforms — reducing our carbon footprint and passing savings on to customers.

Stulz precision CRAC cooling units in Cambridge data centre
Server rack status LEDs in Fast2host Cambridge facility
Explore our data centre

100% renewable energy

Supplied by SmartestEnergy from hydro, solar and wind sources, backed by REGOs verified by the Carbon Trust.

Efficient cooling

Stulz precision CRAC units with hot-aisle containment, optional free cooling and intelligent control for lower PUE.

Efficient IT infrastructure

96.5% UPS operating efficiency and energy-optimised server platforms — performance without wasted draw.

Environmental commitment

Our sustainability policy drives continuous reduction of the environmental impact of data centre operations.

Explore Fast2host

Power is one part of the platform — see how our Cambridge facility, network and colocation fit together.

6 common questions

We operate N+1 parallel Riello Multi Sentry UPS systems with dual A+B power feeds to every rack. If one UPS or feed fails, the other path takes over seamlessly — backed by a 99.99% power uptime SLA.

Questions about power or colocation? Talk to our UK team.