Today's energy management has three separate hardware components. To any IT manager, it is imperative to know about these powerful hardware categories. The electricity from the grid needs to be converted, protected, and dispatched to your sensitive processors. The three major types of power solutions in relation to your architecture:
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Internal Parts: These are parts that convert AC wall power into a clean DC voltage for the computer's internal parts. Power supplies of high quality make sure that high-end desktops and server blades are stable and that they don't receive any ripples which may harm the sensitive chips.
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Protection (UPS): Uninterruptible Power Supply is used as a bridge during a power outage. A UPS supplies momentary emergency power and enables your systems to safely shut down before data can be corrupted during an unexpected blackout or brownout.
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Distribution (PDUs): These are rack-mounted strips of outlets that take one high-voltage source and divide it into many outlets. Power Distribution Units enable remote monitoring and load balancing of outlets, which means never overloading a circuit with power to network switches and storage arrays.
In total, these three pillars provide a full life cycle for your electricity that comes in from the grid, is prepared to be safe, stored for emergency situations, and then sent to all of the parts of your rack efficiently.