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Data center consumption creates tremendous amounts of power demands to operate the servers and to support additional air- conditioning requirements therefore the design should include an electrical power plant distribution system designed for reliability and operational efficiency5. The electrical power design should include dual electrical service feeds and distribution from different power grid sub -stations. This is to protect the server equipment with sustainable, power for surges, sags, high energy transients, brownouts, and blackouts regardless of the source of the electrical disturbance. Whenever unexpected incidents occur, having strong backups and co -located resources can help keep operations running. The most favorable data center design provides three lines of defense for backup power include (1) multiple feeds from the public utility, (2) Uninterruptible Power Supply (UPS) service with a minimum 20 minutes backup; and (3) if necessary, diesel generators to sustain power for longer- term outages. The UPS and backup diesel -powered generators are crucial to maintaining a constant flow of power in the event of a power failure from the public utility. Several basic principles should guide the size and capability of the UPS system. The UPS should be of sufficient size to energize all computer equipment, HVAC systems, and other electrical devices such as emergency lighting and security devices, for 100% of the power demand for no less than 15 to 20 minutes after a power interruption. The UPS should be adequately sized for peak load or fault overload conditions. This relates to the surge in power demand when the equipment is first energized. As a rule of thumb, the UPS should be sized for 150% of operating demand. The UPS should be continuously operational to filter and condition the power. Utilities and Power - Upgrade existing electrical power to include dual electrical service feeds and distribution from different power grid sub -stations if possible. - Redundant power grid connections to safeguard a continuous utility power supply is recommended. - Tailor always -on power configurations to suit customer requirements as needed. - Create a system that is configured to deliver redundant power if a critical incident occurs so that operations are uninterrupted and business applications remain online. An example of this would be two onsite 1 MW Cummins generators, and an Eaton uninterruptible power supply (UPS) system providing N+1 redundancy. Components (N) have at least one independent backup component (+1). The level of resilience is referred to as active / passive or standby, as backup components do not actively participate within the system during normal operations. Security: Design requirements for a secure center should provide multiple security systems with passage in and out of the facility controlled via card or biometric access systems. All security systems should be monitored 24/7 with activities logged both onsite and at a remote location. All alarms should specify the exact location of the fault so time is not wasted searching for the source of the problem. 121 65A-128