power system reliability

Your Redundancy Strategy Might Be Built on a Single Point of Failure

Enterprise data centers and hospitals are designed around a non-negotiable requirement: uptime.

Redundant power systems, backup generation, and layered protection schemes are engineered to ensure operations continue even when components fail. On paper, these systems are resilient.

In practice, many are not.

Because while the electrical infrastructure may be built to last decades, the control systems managing it are not.

The Hidden Gap Between Equipment Life and Control System Life

Heavy electrical assets such as switchgear, transformers, and generators can operate reliably for 40 years or more when properly maintained. That longevity is often assumed across the system.

But the programmable logic controllers (PLCs) that operate and coordinate those assets typically have a lifecycle closer to 15 to 20 years. After that, they become obsolete, unsupported, and increasingly vulnerable to failure.

This creates a dangerous mismatch:

  • Long-life infrastructure 
  • Short-life control systems 
  • No redundancy at the control layer 

When the PLC fails, redundancy at the equipment level becomes irrelevant.

Why This Matters More Now Than Ever

In environments like hospitals and data centers, failure is not just inconvenient. It is operationally critical.

An unsupported control system introduces:

  • Increased risk of unplanned outages 
  • Limited or no access to replacement parts 
  • Inability to quickly recover from failure 
  • Reduced visibility into system performance 

The Shift from Reactive to Proactive Modernization

The worst time to address control system obsolescence is during a failure.

Modernization needs to happen before risk becomes reality. That starts with Front-End Loading engineering, where existing systems are evaluated and a path forward is defined.

Where Shermco Fits

Shermco helps facilities evaluate aging infrastructure, engineer upgrades, and ensure reliability at both the equipment and control level.

The Real Question

If your redundancy depends on a control system that is no longer supported, is it truly redundant?