Sites are carefully selected with UPS (uninterruptible Power Supplies) and stand-by generation systems, raised floors, cable management and air conditioning to ensure a resillient location for our important infrastructure equipment. N=1 power is filter-fed to each building to prevent surging, supplied at 230V AC for computer systems and 48V DC in telecoms suites. UPS delivery is backed up with high capacity power generators with at least 48 hours worth of fuel; ample to survive disaster scenarios.