Client is a chemical processing plant near Baton Rouge on Entergy's Schedule LGS-TOU. They're getting hit with power factor penalties every month - averaging $12K penalty on a $340K bill. Plant engineer says they installed capacitors last year but penalties continue. What am I missing here?
Chemical plant power factor penalties - Entergy Louisiana
Victor, capacitors help but timing matters. Chemical plants often have variable loads - motors starting/stopping, pumps cycling. The capacitors might be sized for average load but not handling the dynamic changes. Check if the penalties are worse during specific production periods.
Also check the capacitor bank operation logs. We found one plant where the capacitor controls were malfunctioning - banks would switch in during low load periods creating leading power factor, which also gets penalized. The $12K penalty suggests power factor is really poor, probably below 0.80.
Elmer, that's exactly it! Checked the interval data and power factor actually goes leading during overnight hours when process load drops but capacitors stay online. Plant needs automatic switching controls, not just fixed capacitors. Thanks for the insight.
Good catch on the leading power factor issue. This is why power factor analysis needs to look at the full 24/7 profile, not just peak periods. Many industrial plants make this same mistake with their capacitor installations.