Peak Performance

How IEA Helped a Major Manufacturer Save Costs and Secure Power Reliability

Summary
A large Illinois-based manufacturer needed a reliable source of backup power to protect production continuity. Through IEA Power’s expertise, the project evolved beyond simple standby generation—into a smart, peak-shaving system that delivered both energy cost savings and operational resilience.
The Challenge

The manufacturer’s primary goals were twofold:

  • Ensure power reliability to prevent costly downtime during outages.
  • Reduce electricity costs associated with high-demand, on-peak utility rates.

However, the client’s existing electrical infrastructure required a custom-engineered approach capable of supporting a full facility load while integrating seamlessly with the local utility system.

The Solution
Working closely with the client’s engineering and maintenance teams, IEA Power designed and installed a 4.6 megawatt natural gas-fired standby power generating system—built not only for reliability, but also for cost efficiency.

Key aspects of the solution included:

  • Full-load capacity: The 4.6 MW system could support the entire electrical demand of the facility.
  • Peak shaving operation: During high-demand weekday hours (9 a.m.–10 p.m.), the generators automatically activated to offset grid usage—eliminating costly peak demand charges.
  • Off-peak automation: During low-demand periods, the system shut down automatically to take advantage of reduced off-peak rates.
  • Fully paralleling switchgear: Enabled a smooth, seamless transition between utility and generator power without interruption to operations.
  • Integrated control systems: Optimized performance, load management, and efficiency throughout all operating modes.

The result was a dual-purpose system that not only provided backup power security but also delivered significant long-term cost savings.

Result & Impact
  • Elimination of utility peak demand charges—leading to substantial energy cost reductions.
  • Complete facility coverage for uninterrupted power reliability.
  • Seamless switching between utility and generator power.
  • Operational resilience for a just-in-time manufacturing process.
  • Improved return on investment, as cost savings compounded over time.
  • The system’s secondary benefit—serving as a standby power source during outages—helped the company maintain uptime, productivity, and profitability.

Download the case study here.