Case Study: Guardian Glass achieves 97% power factor and 4% monthly utility credit with Schneider Electric EcoStruxure Power

A leading glass manufacturer uses EcoStruxure™ solutions to save money and improve operational reliability

Guardian Glass, a leading glass manufacturer in DeWitt, Iowa, operates a 750,000‑square‑foot plant with a 2,800°F furnace producing about 700 tons of glass per day. After capacitor bank failures and a grid power event dropped its power factor below the utility credit threshold and caused costly downtime, Guardian Glass engaged Schneider Electric and its EcoStruxure solutions to restore power reliability and recover lost utility bill credits.

Schneider Electric installed VarSet capacitor banks, PowerLogic meters (M5000/PM8000 series), EcoStruxure Power Monitoring Expert software, and backed the system with EcoStruxure Power Advisor digital services and a Power Quality Maintenance Contract. The Schneider Electric solution immediately delivered a three‑point improvement to a 97% power factor, restored a 4% monthly utility credit, produced cost savings with a two‑year ROI, and provided real‑time visibility to prevent future downtime.

Guardian Glass

Mike Flesch

Senior Controls Engineer