Most hosting centers and many data centers need those five or six 9s of reliability. The 703-acre University of Washington campus consumes 31mW a day. For that size action, the game is three-phase electrical power, usually 220 volts for computing gear or 440 volts for manufacturing.
Some companies sell directly to end users, and many sell through resellers.
Take the expected peak load and add anywhere from 3 percent to 20 percent for the backup equipment itself. All Rights Reserved.