The ability to provide mission-critical colocation services means delivering the goods on a wide range of fronts -- few as critical as ensuring a constant flow of reliable power to your equipment and maintaining optimal temperature and humidity to keep your equipment operating at peak efficiency. And that's after the facility's primary sources of power and cooling fail.

AtlantaNAP is the only facility like it in the southeast United States, with A/B power from separate substations and diverse entries into the building. Plus, each power supply has its own UPS system and N+1 generator back up. All of our A/B power customers are guaranteed 100% uptime on their equipment.

The Atlanta NAP is one of the few facilities able to support higher power density applications. Power is dual fed from the grid and protected though multiple redundant N+1 paralleled generator and ups power systems. Each UPS is configured with an additional full wrap-around bypass for extra redundancy (we are able to take the system offline for any type of internal maintenance without dropping power to the facility). All of our power systems are monitored by our state of the art computerized building management system which provides key operating details to our building management staff at all times and alerts us to problems by monitoring the systems many times per second.

The generators have day tanks fed from redundant pumps from our 12,000 gallon reserve tank. The system is powered by state of the art by Cummins turbocharged generators and digital fuel management system by Simplex and Veeder-Root. The NAP has enough onsite fuel to run for several days without refueling.

The Atlanta NAP currently has 2000 tons of cooling piped into its 50,000 sq. foot datacenter to support 225 watts of average critical load on occupied areas of the floor. The cooling tower system is made up of 4 500 ton units that are paralleled together for additional redundancy. Each bank of cooling towers utilizes state of the art variable frequency energy management technology. As with all core system, the cooling towers are N+1, fed by redundant N+1 pumps. The cooling tower makeup water is fed by our onsite well which supplied a 30,000 gallon reserve water tank before it hits the cooling towers for added redundancy. The well is backed up with a 4 inch main from the city water supply. The NAP is self-contained on its water supply and can run for 2 days in the event of city water and well water failure at the same time which has a very low probability. The NAP also has innovative green technology of air to air exchange for additional efficiency.

AtlantaNAP Power & Cooling Specs

Tier IV Power

Multiple utility feeds from separate substations with diverse building entry
Engineered for high-density and critical power needs

• Two feed (primary) UPS systems:

  • One 3-module (N+1) 750kVA unit
  • One 4-module (N+1) 2,000kVA unit
• Two feed (redundant) UPS systems:
  • One 1-module 750kVA unit
  • One 2-module 1000kVA unit
• One 2MW and ten 500kW diesel powered generators (N+1 capacity)
• Control via dual PSSI static switchgear units
• 2,000 gallon on-site fuel storage tank + 5,000 gallon belly tank

Cooling

• Redundant cooling towers
• Multiple pumps (N+1) circulate water to CRAC units
• Five 500-ton cooling towers (N+1), paralleled for multiple redundancy
• Private well water / backed up by city water
• 36,000 gallon storage tank holds make-up water for cooling towers
• AltantaNAP Power Diagram